Sonoran Property Inspections

Home Inspections Prescott, Prescott Valley, Cottonwood, Scottsdale, Arizona

Home Inspection – Windows

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One part of any Phoenix or Prescott area home inspection we do is to look at, and operate, all of the accessible windows. This includes the inspector looking for signs of window seal failure. If multiple-pane windows appear misty or foggy, it means that the seal protecting the window assembly has failed. Let’s take a closer look at how window condensation happens, and what it may mean on a home inspection report.
First of all, Condensation is the accumulation of liquid water on relatively cold surfaces.  Almost all air contains water vapor, the gas phase of water composed of tiny water droplets. The molecules in warm air are far apart from one another and allow the containment of a relatively large quantity of water vapor. As air cools, its molecules get closer together and squeeze the tiny vapor droplets closer together, as well. A critical temperature, known as the dew point, exists where these water droplets will be forced so close together that they merge into visible liquid in a process called condensation.

Double-pane windows have a layer of gas (usually argon or air) trapped between two panes of glass that acts as insulation to reduce heat loss through the window. Other types of gas used in this space have various effects on heat gain or loss through the window. Some windows also have a thin film installed between panes that separates the space between the panes into two spaces, further reducing heat loss and heat gain through the window.

Silica Desiccant
A desiccant is an absorbent material designed to maintain dryness in the space it protects. In a double-paned window, silica pellets inside the aluminum perimeter strip absorb moisture from any incoming air that enters the space between the panes. If not for the silica desiccant, any moisture in the space between the panes would condense on the glass as the glass cools below the dew point temperature.

Silica gel has an immense surface area, approximately 7,200 square feet per gram, which allows it to absorb large amounts of water vapor. As the sealant protecting this space fails over time, increasing amounts of moisture-containing air will enter the space between the panes, and the silica pellets will eventually become saturated and will no longer be able to prevent condensation from forming.

Why Double-Paned Windows Fail:  Solar (Thermal) Pumping
Although double-paned windows appear to be stable, they actually experience a daily cycle of expansion and contraction caused by thermal pumping. Sunlight heats the airspace between the panes and causes the gas there to heat up and expand, pressurizing the space between the panes. At night, the window cools and the space between the panes contracts. This motion acts like the bellows of a forge and is called thermal pumping.
Over time, the constant pressure fluctuations caused by thermal pumping will stress the seal. Eventually, the seal will develop small fractures that will slowly grow in size, allowing increasing amounts of infiltration and exfiltration of air from the space between the panes.

Failure Factors

Windows on the sunny side of a home will experience larger temperature swings, resulting in greater amounts of thermal pumping, seal stress and failure rates.

Vinyl window frames have a higher coefficient of expansion resulting in greater long-term stress on the double-pane assembly, and a higher failure rate. Windows also experience batch failure, which describes production runs of windows, especially vinyl windows, that are defective, meaning that the pane assemblies have been manufactured with seals that have small defects that will cause the window to fail prematurely.

The Nature of Damage

If it’s allowed to continue, window condensation will inevitably lead to irreversible physical window damage. This damage can appear in the following two ways:

  • riverbedding.  Condensed vapor between the glass panes will form droplets that run down the length of the window. Water that descends in this fashion has the tendency to follow narrow paths and carve grooves into the glass surface. These grooves are formed in a process similar to canyon formation.
  • silica haze.  Once the silica gel has been saturated, it will be eroded by passing air currents and accumulate as white “snowflakes” on the window surface. It is believed that if this damage is present, the window must be replaced.

Detecting Failure

Condensation is not always visible. If the failure is recent, a failed window may not be obvious, since condensation doesn’t usually form until the window is heated by direct sunlight. Windows in the shade may show no evidence of failure, so your inspector will disclaim responsibility for discovering failed double-paned windows.

 

Recommendations for Failed Windows

According to industry experts, the glazing assembly can be replaced  approximately 75% of the time.  Occasionally, the sashes must be replaced, and only about 5% of those cases require that the entire window be replaced.

Be aware that there are companies that claim to be able to repair misty windows through a process known as “defogging.”

This repair method proceeds in the following order:

  1. A hole is drilled into the window, usually from the outside, and a cleaning solution is sprayed into the air chamber.
  2. The solution and any other moisture are sucked out through a vacuum.
  3. A defogger device is permanently inserted into the hole that will allow the release of moisture during thermal pumping.

There is currently a debate as to whether this process is a suitable repair for windows that have failed, or if it merely removes the symptom of this failure. Condensation appears between double-paned windows when the window is compromised, and removal of this water will not fix the seal itself. A window “repaired” in this manner, although absent of condensation, might not provide any additional insulation. This method is still fairly new and opinions about its effectiveness range widely. Regardless, “defogging” certainly allows for cosmetic improvement, which is of some value to homeowners. It may also reduce the potential for damage caused by condensation in the form of mold or rot.  Some skepticism exists about the effectiveness and cost effectiveness of this method of repair.

In summary, condensation in double-paned windows indicates that the glazing assembly has failed and needs repair or replacement. Visible condensation can damage glazing and is the main indication of sealant failure.

Windbreaks for your Home

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It is a WINDY day here in Prescott Valley, Arizona!  So let’s talk a little about how you can use natural windbreaks to your advantage. Windbreaks are dense rows of trees and shrubs designed to reduce wind speed before it reaches a building.  During a home inspection I will pay attention to landscape items as it relates to the home, such as making sure trees and shrubs are not too close to the structure, but well placed trees and shrubs can do much to enhance not only the beauty of the home, but the also provide other perks for the homeowner.

Some of the advantages provided by windbreaks, beyond simple wind mitigation, include the following.Properly-designed windbreak protects a house
  • Many animals rely on windbreaks. Food, shelter from severe weather, nesting sites, and a means of escape cover are all provided by the vegetation that composes a windbreak. For example, the planting of windbreaks during the Dust Bowl of the 1930s is believed to have allowed the expansion of woodland birds and other creatures, such as Mississippi kites and fox squirrels. Birds, in particular, are known to rely on windbreaks for temporary cover during winter storms. Even large mammals, such as white-tailed deer, use windbreaks for cover, food and fawning. Employ a variety of trees and shrubs in your windbreak to create an abundance of different kinds of nuts, seeds and berries, which will, in turn, attract a diversity of wildlife.
  • While any vegetation will increase the appeal of an otherwise barren yard, a uniform, well-maintained windbreak can actually increase property values with their pleasing aesthetics. Also, they allow the homeowner to strategically screen out undesirable sights.
  • Windbreaks are effective for noise deflection. Windbreaks reduce the infiltration of traffic noise into a property by absorbing and deflecting it with leaves and large branches. In addition, traffic noises will be replaced with the sounds of rustling leaves or the singing of birds that are drawn to the vegetation.
  • Windbreaks provide snow control (okay, those of you in Phoenix can ignore this part!). A properly placed windbreak will prevent snow drifts in areas such as driveways and building entrances. Valuable time and effort can then be spent on activities other than snow removal.

Windbreaks work either by deflecting the wind up and over a building, thereby forming a protective wind shadow, or by catching it to reduce its speed. And as the windbreak captures the winter wind, so too does the wind chill diminish. For example, if the outside temperature is 12° F (-11° C), a windbreak can reduce a 20-mph wind to 5 mph, and the wind chill will be reduced from -22° F (-30° C) to a more bearable 8° F (-11° C).

The best windbreaks block wind close to the ground by using fast-growing trees and shrubs that have low crowns. Deciduous trees, while they are favored as shade trees during the summer, lose their leaves in cold weather, which makes them less effective than evergreens at stopping the frigid winter wind. The best choices are dense, fat, fast-growing conifers that will mature to a height higher than the roof. These qualities may be found with Norway, white and Colorado blue spruce. Again, those of you in Phoenix and Scottsdale will have to use something like fast growing oleanders or other dense shrubs to help.

Tips that you may find helpful:Windbreak

  • For maximum protection, plant your windbreak at a distance from your home of three to five times the height of the mature trees. Studies have shown, however, that the effective distance of wind reduction is sometimes as high as 30 times the height of the windbreak, depending on the tree species.
  • Do not plant trees too close to the home’s south side, as this will reduce the warmth supplied by the winter sun.
  • Arrange windbreaks in multiple rows to increase their effectiveness.
  • Do not prune the lower branches of the windbreak, as this will increase the wind speed near the ground.
  • Thin the trees and shrubs as they grow to ensure that competition does not jeopardize the health of the windbreak. For instance, you can plant trees 3 feet apart, but then you should remove every second tree when their crowns begin to intersect.
  • Incorporate numerous plant species in the windbreak to impede wind from ground level to the treetops. Even non-living yard features, such as walls, fences and raised soils, can be incorporated into a single windbreak.
  • Decide which direction the prevailing winds come from in your area so you know where the best places are to plant the windbreak.
  • Be careful to not plant large trees too close to the home, as they may fall during a storm, shed leaves or needles on your roof, allow pests to access your roof, or even penetrate your basement walls with their root structure. If you are experiencing any of these conditions, be sure to talk about it with your home inspector during your next scheduled inspection.
  • Arrange the windbreak in such a way that it will provide a conduit for breezes and desired winds.

Annual Home Inspections

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The concept of an annual home inspection has been around for a long time, but it may just now be catching on that this is a good idea. Why wait until you plan to sell your home and then get overwhelmed with all the small items that you have not stayed on top of.  As a home inspector in the Prescott area, as well as the Phoenix metro area, we have seen houses that have so much going for them when they hit the market, but then once all the items from a home inspection come up the buyers get concerned with the potential added cost of fixing them, and it sometimes causes them to look elsewhere.

It is easy to stay on top of the maintenance items, and sometimes delay the more costly repairs that all homes need over time, by getting a “home health checkup” on a regular basis – just like going to the doctor for your wellness exams, or taking your car to the shop for routine maintenance. Your home is perhaps your largest asset, so maximize your investment and consider a regular home inspection to provide you with an easy to understand to-do list.

After the inspection you will have a clear idea of the items that need attention so that you may decide what you can do on your own, and what you may need a professional contractor to complete. Then you can enjoy your home more while you live there, and can have fewer surprises when you go to sell it.

Call us today to talk about what we can do for you when it comes to annual (or even semi-annual) “health” checkups for your home!

Home Inspection – Termites

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When you schedule your home inspection with Sonoran Property Inspections, we will ask if you want a separate termite inspection done on the home, and we will set that up for you. We thought we would give you a little information about termites – oh, those almost invisible little subterranean pests!  In the Phoenix area they are more of a threat than in the Prescott area. Either way, we encourage you to get this add-on inspection done just so you know what you are dealing with.

Termites are considered Arizona’s number one urban pest. As a homeowner, you may encounter termites at sometime or other. If you find termites in your home, it’s important not to panic. These small animals take a very long time, often years before structural damage is present in the home.Therefore, the information provided here is to enable you to make intelligent decisions regarding termite management options. It’s important to contact several pest management professional (PMP’s) for estimates. If you already have a pest control service you may want to contact them for an estimate. Attempting to control termites on your own is not recommended.
Termites are small animals found primarily in the tropical regions of the world, where they play a role in the recycling wood and other cellulose-based materials. Termites are in a group of insects, which alone comprise the order Isoptera (iso-ptera = “equal-winged”). They are so named because the primary reproductive adults usually referred to as “swarmers”, have two pairs of equal length wings. There are currently approximately 2,761 named termite species in 282 genera worldwide. About 45 species occur in the continental United States with nearly 30 causing damage to wood and wood products. At least seventeen species of  termites occur in Arizona, but only three species are considered to be of any significant economical importance.
In Arizona, dampwood and drywood termites are not wide spread problems but can be under certain conditions. Subterranean termites on the other hand are
considered one of our major urban pests.
Signs of Infestation
 
Hire a qualified InterNACHI inspector to inspect for termites or other wood-destroying organisms. Generally, the first sign of infestation is the presence of swarming termites on the window or near indoor light. If they are found inside the house, it almost always means that they have infested. Other signs that may be found are termite wings on window sills or in cobwebs, and shelter tubes, which are tunnels constructed by the termites from soil or wood and debris. Usually, wood damage is not found at first, but when it is found, it definitely reveals a termite infestation. Anywhere wood touches soil is a possible entry into a home for termites. Examine wood which sounds dull or hollow when struck by a screwdriver or hammer. Inspect suspected areas with a sharp, pointed tool, such as an ice pick, to find termite galleries or their damage.
 
Control
 
Control measures include reducing the potential infestation, preventing termite entry, and applying chemicals for remedial treatment. We will not get into treatment options here, but your pest control company will help you with your options. So when you need a home inspection, don’t forget to get the termite inspection done at the same time. We will look for obvious signs, but the specialists will do a more thorough inspection and issue you a separate report and treatment options if they are needed.
 
Inspection
 
Inspect thoroughly to determine if there is an infestation, damage, and/or conditions that could invite a termite attack, or the need for remedial control measures. The tools and equipment needed for an inspection include a flashlight, ice pick or sharp-pointed screwdriver, ladder, and protective clothing. Always hire an InterNACHI inspector for your inspection needs, as they are trained by the highest standards in the inspection industry. As always, let us know if we can help!

Paying a Little Extra for a Home Inspection Could Pay Off

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Buying a home in Prescott or the Phoenix area? It is probably the most expensive purchase you will ever make. This is no time to shop for a cheap home inspection. The cost of a home inspection is very small relative to the value of the home being inspected. The additional cost of hiring an InterNACHI-certified inspector (like Jerry at Sonoran Property Inspections) is almost insignificant by comparison.

You have recently been crunching the numbers — negotiating offers, adding up closing costs, shopping for mortgages — and trying to get the best deals. Don’t stop now. Don’t let anyone talk you into skimping on the home inspection. A certified professional home inspector will earn their fee many times over. With over 30 years of home building and inspecting experience, we are able to provide clients with more knowledge that can help them in the sale or purchase of a home, and — yes — I may charge a little more than a less experienced inspector.

So do yourself a favor and pay a little more for the quality home inspection you deserve!

Home Inspection Report: What to Expect

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Whether or not you decide to use Sonoran Property Inspections, the following summary could be useful information as you search for a home inspector in the Prescott or Scottsdale area. Not all inspectors are the same, so take the time to educate yourself on what to look for and expect in an inspection report.

Influenced by the changes in both economic and legal environments, home inspection reports have changed to accommodate increased consumer expectations, and to provide more extensive information and protection to both inspectors and their clients (including real estate agents).

If your home inspector is not a member of one of the two main professional inspection organizations (ASHI or InterNachi), you may want to find another inspector. Those that are members of these organizations adhere to Standards of Practice that are designed to identify both the requirements of a home inspection and the limitations of an inspection. I am a certified inspector through InterNACHI and would be happy to answer any questions for you concerning these Standards of Practice.

Here is a summary for you (and your clients) of what to expect from a home inspection:

  • Inspections are a visual inspection to provide you with the general features of the home, and identify any potential deficiencies or safety issues. Your inspector can not perform any destructive or exhaustive testing (for example, they will not take anything apart to determine a problem).
  • Inspectors may not be an expert in every system of the home, but are trained to recognize conditions that require further examination by an expert. As a past home builder, I know homes inside and out, but will still recommend an expert in a certain trade if I see something that concerns me.
  • Reports should be easy to read and understand, and contain a summary section to outline the major points for the client. A sample report can be seen on my website to give you an idea of how this report should look.
  • A post inspection review on-site with the client and/or real estate agent can help  everyone understand the “facts” of each home and offer advice or answer any questions or concerns.

In summary, for clients to have a realistic expectation about what information will be included in the home inspection report, follow these tips:

  • Read the Standards of Practice, and the inspector agreement to know what is and is not inspected
  • View a sample report on the inspector’s website
  • Talk to the inspector – before and after any inspection

If I can help you in any way with your inspection questions, please call or email me.

Home Inspection for Sellers? It’s a Good Idea!

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Happy New Year from Sonoran Property Inspections, your local home inspector for Prescott, Prescott Valley, as well as Phoenix and Scottsdale.  With home inventory getting lower, it is a good time to consider listing your home. Did you know that a pre-listing home inspection could help you sell your home quicker?

When the home buyer hires an inspector to look at the home, issues can come up that may send both parties back to the negotiating table. But when you decide to hire an inspector before you list you can address any potential stumbling blocks BEFORE they derail your sale of the home.  You may choose to repair any items yourself, or price the house accordingly. But either way, by taking the initiative you are the one in control.  The buyer may (and should) hire a different inspector to re-inspect the home, but at least there should be no big surprises to you as the seller.

So, if you decide to list your home, consider doing a home inspection to go into the transaction with a little more peace of mind for a small amount of investment. If we can help, just let us know.

Happy Holidays from Sonoran Property Inspections

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Greetings from Prescott Valley, Arizona. Just want you to know that we are always here for you if you need a home inspection done, whether it is a holiday of not, and we look forward to working with you in the new year!  In the meantime, from all of us here at Sonoran Property Inspections (and by all of us I mean Jerry, Pam, and the two Golden Retrievers!) we wish you a warm and happy holiday season, and a peaceful and prosperous new year!  All we need now is just a little snow.

 

Fireplace Safety

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It is FINALLY starting to cool off here in Prescott, Arizona!  As a home inspector (providing inspections in the Prescott area as well the Phoenix metro area) I see some fireplaces used in an unsafe manner. So I wanted to use this time to help educate you on what you should and shouldn’t use your fireplaces for, and what type of fireplace fuel is best. Stay safe this holiday season!

Fireplaces and wood stoves are designed to burn only one type of fuel. Used as all-purpose incinerators, these devices can pose the following hazards:

  • Harmful vapors can vent into the living space. Even the most efficient fireplaces will vent directly into the living space while they’re opened and closed for cleaning and refueling, exposing everyone in the house to potentially dangerous fumes.Firewood drying out in the sun
  • Harmful vapors will vent to the outdoors. Most newer fireplaces and wood stoves do an excellent job of funneling smoke and fumes to the outdoors, but the problem doesn’t end there; this pollution persists, contaminating household and environmental air.
  • Burning inappropriate fuel can cause mechanical damage. Chimneys can become lined with residue from inappropriate items, which may lead to a dangerous chimney fire. The fumes from certain items will quickly wear out sensitive components, such as catalytic combustors in wood stoves.

Read the following guidelines to better understand what can and cannot be safely burned in a residential fireplace or wood stove.

What can be burned in a fireplace?

  • dried, cut firewood. An adequate fuel supply will consist of a mixture of hardwoods, such as maple and oak, and softwoods, such as fir and pine. Softwoods ignite quickly and are useful in the early stages of the fire, while hardwoods provide a longer-lasting fire, and are best used after preheating the chimney. Despite the different burning characteristics of hardwoods and softwoods, which can be attributed to differences in density, the heat-energy released by burning wood is the same, regardless of species. To dry out wood, it should be stacked in an open area so the sun can warm the pieces and the breezes can carry away the moisture. Poplar, spruce and other softwoods generally dry quickly, as do wood that has been split small. Adequately seasoned wood has a moisture content of less than 20%, which can be checked using the following indicators:
    • The wood has darkened from white or a cream color to yellow or grey.
    • There are cracks or checks in the end grain.
    • A hollow sound is produced when two pieces of wood are banged together.
    • You can split a piece and feel if the new surface is damp or dry.
    • The wood does not hiss while burning.
    • You can check its moisture content with a moisture meter.Used pallets burn efficiently, but you must be sure they are free from chemical treatment
  • pallets. Generally, pallets are safe to burn in fireplaces, although those that are treated with the fumigant methyl bromide (labeled with the initials MB) are unsafe to burn. Also, pallets may have been exposed to a variety of chemicals while they were in use. Aside from these concerns, pallets produce a hot flame because they’re usually very dry and their segments are thin. Be careful to check for nails while cutting pallets, as they may damage a saw blade. You may also wind up with nails in your ash, which should be disposed of far from roads and driveways.
  • fallen tree limbs. These can generally be collected and used for kindling, provided they have been given time to dry.
  • wood collected from housing developments. If it is truly trash and not someone’s property (including the housing contractor’s), using scavenged wood that has been cleared away for housing developments is good for burning.  Try to obtain it before the non-lumber grade wood is pushed into massive piles and burned as a means of disposal by the contractor.
  • fire logs. These artificial logs burn relatively cleanly and release less ash than their natural wood counterparts.

What should never be burned in a fireplace?

  • painted wood. Paint contains heavy metals, such as lead, chromium and titanium, which are used to make the different colors. These metals, especially lead, can be toxic even in small quantities if inhaled. If you’re unsure if your paint has lead, be sure to consult with your InterNACHI inspector during your next scheduled inspection.
  • pressure-treated wood. Wood is commonly made resistant to fungus and insects through the addition of copper, chromate and arsenic, in a process known as CCA treatment. CCA treatment places roughly 27 grams of arsenic in every 12-foot 2×6, which is sufficient to kill about 250 adults, which is why it is illegal in the U.S. to burn pressure-treated wood. Vaporized CCA wood, known as fly ash, is extremely toxic; in one case, as reported by the American Medical Association, a family was stricken with seizures, hair loss, debilitating headaches, blackouts and nosebleeds from fly ash released when they unknowingly used CCA wood to burn in their fireplace. Even the family’s houseplants and fish succumbed to the toxic fumes.
  • plywood, particleboard, chipboard or OSB. These manmade woods release formaldehyde, and potentially hydrochloric acid or dioxin, when burned. Some states have outlawed the incineration of some or all of these artificial wood products.
  • rotted, diseased or moldy wood. This wood will not burn as long as normal wood, may produce bad smells when burned, and could bring insects into the house.
  • damp wood. Wood that has a moisture content higher than 20% will burn inefficiently and will contribute to a greater accumulation of creosote in the chimney, as well as air pollution.
  • allergenic plants.  Urushiol, which is the chemical that induces the typically minor allergic reaction when skin is exposed to poison ivy, poison sumac or poison oak, is far more dangerous when inhaled. Urushiol is not destroyed by fire and can quickly cause life-threatening respiratory distress if any of these plants are burned.
  • dryer lint. While it’s often used effectively as a fire-starter, lint can contain a wide array of dangerous chemicals that come from your clothes and fabric softener.
  • trash. Never burn household garbage, as it contains a range of potentially hazardous materials and chemicals that react in unpredictable ways when burned together. Newspaper ink, plastics, aluminum foil, plastic baggies, and whatever else constitutes your particular trash can create a deadly chemical cocktail.
  • driftwood. Wood found on the beach of an ocean or salty lake will release salt when burned, which will quickly corrode any metal and etch the glass of a wood stove or fireplace. Catalytic converters are especially vulnerable to salt corrosion. In addition to potential damage to the stove or fireplace, the EPA claims that driftwood releases toxic chemicals when burned.
In summary, use only approved and appropriate fuel to burn in your fireplace or wood stove, because certain items should never be burned because they can cause problems ranging from minor irritation to a hazardous health threat to your family.

Asbestos for a Prescott Home Inspection

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We were recently asked if we do asbestos testing for a buyer on a Prescott home inspection. Because it is a destructive testing procedure (ie – you need to scrape a sample and send off for testing, and it could become more lethal once disturbed), we are not able to do an actual test for it. However, there are certain items we can look for during home inspections that could be a red flag and make you aware of the potential dangers when buying a home. After 1980, asbestos was mostly banned and phased out of construction material, but homes in the 1980’s and 1990’s could still have materials containing asbestos. The following information may help buyers and sellers if there is a concern about asbestos in a home.
What is Asbestos?
Asbestos is a mineral fiber that can be positively identified only with a special type of microscope. There are several types of asbestos fibers. In the past, asbestos was added to a variety of products to strengthen them and to provide heat insulation and fire resistance.
 
How Can Asbestos Affect My Health?
From studies of people who were exposed to asbestos in factories and shipyards, we know that breathing high levels of asbestos fibers can lead to an increased risk of lung cancer in the forms of mesothelioma, which is a cancer of the lining of the chest and the abdominal cavity, and asbestosis, in which the lungs become scarred with fibrous tissue.

The risk of lung cancer and mesothelioma increase with the number of fibers inhaled. The risk of lung cancer from inhaling asbestos fibers is also greater if you smoke. People who get asbestosis have usually been exposed to high levels of asbestos for a long time. The symptoms of these diseases do not usually appear until about 20 to 30 years after the first exposure to asbestos.

Most people exposed to small amounts of asbestos, as we all are in our daily lives, do not develop these health problems. However, if disturbed, asbestos material may release asbestos fibers, which can be inhaled into the lungs. The fibers can remain there for a long time, increasing the risk of disease. Asbestos material that would crumble easily if handled, or that has been sawed, scraped, or sanded into a powder, is more likely to create a health hazard.

Where Can I Find Asbestos and When Can it Be a Problem?
Most products made today do not contain asbestos. Those few products made which still contain asbestos that could be inhaled are required to be labeled as such. However, until the 1970s, many types of building products and insulation materials used in homes contained asbestos. Common products that might have contained asbestos in the past, and conditions which may release fibers, include:
  • steam pipes, boilers and furnace ducts insulated with an asbestos blanket or asbestos paper tape. These materials may release asbestos fibers if damaged, repaired, or removed improperly;
  • resilient floor tiles (vinyl asbestos, asphalt and rubber), the backing on vinyl sheet flooring, and adhesives used for installing floor tile. Sanding tiles can release fibers, and so may scraping or sanding the backing of sheet flooring during removal;
  • cement sheet, millboard and paper used as insulation around furnaces and wood-burning stoves. Repairing or removing appliances may release asbestos fibers, and so may cutting, tearing, sanding, drilling, or sawing insulation;
  • door gaskets in furnaces, wood stoves and coal stoves. Worn seals can release asbestos fibers during use;
  • soundproofing or decorative material sprayed on walls and ceilings. Loose, crumbly or water-damaged material may release fibers, and so will sanding, drilling or scraping the material;
  • patching and joint compounds for walls and ceilings, and textured paints. Sanding, scraping, or drilling these surfaces may release asbestos fibers;
  • asbestos cement roofing, shingles and siding. These products are not likely to release asbestos fibers unless sawed, dilled or cut;
  • artificial ashes and embers sold for use in gas-fired fireplaces, and other older household products, such as fireproof gloves, stove-top pads, ironing board covers and certain hairdryers; and
  • automobile brake pads and linings, clutch facings and gaskets.
Where Asbestos Hazards May Be Found in the Home
  • Some roofing and siding shingles are made of asbestos cement.
  • Houses built between 1930 and 1950 may have asbestos as insulation.
  • Asbestos may be present in textured paint and in patching compounds used on wall and ceiling joints. Their use was banned in 1977.
  • Artificial ashes and embers sold for use in gas-fired fireplaces may contain asbestos.
  • Older products, such as stove-top pads, may have some asbestos compounds.
  • Walls and floors around wood-burning stoves may be protected with asbestos paper, millboard or cement sheets.
  • Asbestos is found in some vinyl floor tiles and the backing on vinyl sheet flooring and adhesives.
  • Hot water and steam pipes in older houses may be coated with an asbestos material or covered with an asbestos blanket or tape.
  • Oil and coal furnaces and door gaskets may have asbestos insulation.

What Should Be Done About Asbestos in the Home?

If you think asbestos may be in your home, don’t panic.  Usually, the best thing to do is to leave asbestos material that is in good condition alone. Generally, material in good condition will not release asbestos fibers. There is no danger unless the asbestos is disturbed and fibers are released and then inhaled into the lungs. Check material regularly if you suspect it may contain asbestos. Don’t touch it, but look for signs of wear or damage, such as tears, abrasions or water damage. Damaged material may release asbestos fibers. This is particularly true if you often disturb it by hitting, rubbing or handling it, or if it is exposed to extreme vibration or air flow. Sometimes, the best way to deal with slightly damaged material is to limit access to the area and not touch or disturb it. Discard damaged or worn asbestos gloves, stove-top pads and ironing board covers. Check with local health, environmental or other appropriate agencies to find out proper handling and disposal procedures. If asbestos material is more than slightly damaged, or if you are going to make changes in your home that might disturb it, repair or removal by a professional is needed. Before you have your house remodeled, find out whether asbestos materials are present.
How to Identify Materials that Contain Asbestos
You can’t tell whether a material contains asbestos simply by looking at it, unless it is labeled. If in doubt, treat the material as if it contains asbestos, or have it sampled and analyzed by a qualified professional. A professional should take samples for analysis, since a professional knows what to look for, and because there may be an increased health risk if fibers are released. In fact, if done incorrectly, sampling can be more hazardous than leaving the material alone. Taking samples yourself is not recommended. If you nevertheless choose to take the samples yourself, take care not to release asbestos fibers into the air or onto yourself. Material that is in good condition and will not be disturbed (by remodeling, for example) should be left alone. Only material that is damaged or will be disturbed should be sampled. Anyone who samples asbestos-containing materials should have as much information as possible on the handling of asbestos before sampling and, at a minimum, should observe the following procedures:
  • Make sure no one else is in the room when sampling is done.
  • Wear disposable gloves or wash hands after sampling.
  • Shut down any heating or cooling systems to minimize the spread of any released fibers.
  • Do not disturb the material any more than is needed to take a small sample.
  • Place a plastic sheet on the floor below the area to be sampled.
  • Wet the material using a fine mist of water containing a few drops of detergent before taking the sample. The water/detergent mist will reduce the release of asbestos fibers.
  • Carefully cut a piece from the entire depth of the material using a small knife, corer or other sharp object. Place the small piece into a clean container (a 35-mm film canister, small glass or plastic vial, or high-quality resealable plastic bag).
  • Tightly seal the container after the sample is in it.
  • Carefully dispose of the plastic sheet. Use a damp paper towel to clean up any material on the outside of the container or around the area sampled. Dispose of asbestos materials according to state and local procedures.
  • Label the container with an identification number and clearly state when and where the sample was taken.
  • Patch the sampled area with the smallest possible piece of duct tape to prevent fiber release.
  • Send the sample to an asbestos analysis laboratory accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) at the National Institute of Standards and Technology (NIST). Your state or local health department may also be able to help.
How to Manage an Asbestos Problem
 
If the asbestos material is in good shape and will not be disturbed, do nothing! If it is a problem, there are two types of corrections: repair and removal. Repair usually involves either sealing or covering asbestos material. Sealing (encapsulation) involves treating the material with a sealant that either binds the asbestos fibers together or coats the material so that fibers are not released. Pipe, furnace and boiler insulation can sometimes be repaired this way. This should be done only by a professional trained to handle asbestos safely. Covering (enclosure) involves placing something over or around the material that contains asbestos to prevent the release of fibers. Exposed insulated piping may be covered with a protective wrap or jacket. With any type of repair, the asbestos remains in place. Repair is usually cheaper than removal, but it may make removal of asbestos later (if found to be necessary) more difficult and costly. Repairs can either be major or minor. Major repairs must be done only by a professional trained in methods for safely handling asbestos. Minor repairs should also be done by professionals, since there is always a risk of exposure to fibers when asbestos is disturbed.
Repairs 
 
Doing minor repairs yourself is not recommended, since improper handling of asbestos materials can create a hazard where none existed. If you nevertheless choose to do minor repairs, you should have as much information as possible on the handling of asbestos before doing anything. Contact your state or local health department or regional EPA office for information about asbestos training programs in your area. Your local school district may also have information about asbestos professionals and training programs for school buildings. Even if you have completed a training program, do not try anything more than minor repairs. Before undertaking minor repairs, carefully examine the area around the damage to make sure it is stable. As a general rule, any damaged area which is bigger than the size of your hand is not considered a minor repair.

Before undertaking minor repairs, be sure to follow all the precautions described previously for sampling asbestos material. Always wet the asbestos material using a fine mist of water containing a few drops of detergent. Commercial products designed to fill holes and seal damaged areas are available. Small areas of material, such as pipe insulation, can be covered by wrapping a special fabric, such as re-wettable glass cloth, around it. These products are available from stores (listed in the telephone directory under “Safety Equipment and Clothing”) which specialize in asbestos materials and safety items.

Removal is usually the most expensive method and, unless required by state or local regulations, should be the last option considered in most situations. This is because removal poses the greatest risk of fiber release. However, removal may be required when remodeling or making major changes to your home that will disturb asbestos material. Also, removal may be called for if asbestos material is damaged extensively and cannot be otherwise repaired. Removal is complex and must be done only by a contractor with special training. Improper removal may actually increase the health risks to you and your family.
Asbestos Professionals: Who Are They and What Can They Do?
Asbestos professionals are trained in handling asbestos material. The type of professional will depend on the type of product and what needs to be done to correct the problem. You may hire a general asbestos contractor or, in some cases, a professional trained to handle specific products containing asbestos.
Asbestos professionals can conduct inspections, take samples of suspected material, assess its condition, and advise on the corrections that are needed, as well as who is qualified to make these corrections. Once again, material in good condition need not be sampled unless it is likely to be disturbed. Professional correction or abatement contractors repair and remove asbestos materials.
Some firms offer combinations of testing, assessment and correction. A professional hired to assess the need for corrective action should not be connected with an asbestos-correction firm. It is better to use two different firms so that there is no conflict of interest. Services vary from one area to another around the country.
The federal government offers training courses for asbestos professionals around the country. Some state and local governments also offer or require training or certification courses. Ask asbestos professionals to document their completion of federal or state-approved training. Each person performing work in your home should provide proof of training and licensing in asbestos work, such as completion of EPA-approved training. State and local health departments or EPA regional offices may have listings of licensed professionals in your area.

If you have a problem that requires the services of asbestos professionals, check their credentials carefully. Hire professionals who are trained, experienced, reputable and accredited — especially if accreditation is required by state or local laws. Before hiring a professional, ask for references from previous clients. Find out if they were satisfied. Ask whether the professional has handled similar situations. Get cost estimates from several professionals, as the charges for these services can vary.

Though private homes are usually not covered by the asbestos regulations that apply to schools and public buildings, professionals should still use procedures described in federal or state-approved training. Homeowners should be alert to the chance of misleading claims by asbestos consultants and contractors. There have been reports of firms incorrectly claiming that asbestos materials in homes must be replaced. In other cases, firms have encouraged unnecessary removal or performed it improperly. Unnecessary removal is a waste of money. Improper removal may actually increase the health risks to you and your family. To guard against this, know what services are available and what procedures and precautions are needed to do the job properly.

In addition to general asbestos contractors, you may select a roofing, flooring or plumbing contractor trained to handle asbestos when it is necessary to remove and replace roofing, flooring, siding or asbestos-cement pipe that is part of a water system. Normally, roofing and flooring contractors are exempt from state and local licensing requirements because they do not perform any other asbestos-correction work.

Asbestos-containing automobile brake pads and linings, clutch facings and gaskets should be repaired and replaced only by a professional using special protective equipment. Many of these products are now available without asbestos.

If you hire a corrective-action contractor:

  • Check with your local air pollution control board, the local agency responsible for worker safety, and the Better Business Bureau. Ask if the firm has had any safety violations. Find out if there are legal actions filed against it.
  • Insist that the contractor use the proper equipment to do the job. The workers must wear approved respirators, gloves and other protective clothing.
  • Before work begins, get a written contract specifying the work plan, cleanup, and the applicable federal, state and local regulations which the contractor must follow (such as notification requirements and asbestos disposal procedures). Contact your state and local health departments, EPA regional office, and the Occupational Safety and Health Administration’s regional office to find out what the regulations are. Be sure the contractor follows local asbestos removal and disposal laws. At the end of the job, get written assurance from the contractor that all procedures have been followed.
  • Assure that the contractor avoids spreading or tracking asbestos dust into other areas of your home. They should seal off the work area from the rest of the house using plastic sheeting and duct tape, and also turn off the heating and air conditioning system. For some repairs, such as pipe insulation removal, plastic bags may be adequate. They must be sealed with tape and properly disposed of when the job is complete.
  • Make sure the work site is clearly marked as a hazardous area. Do not allow household members or pets into the area until work is completed.
  • Insist that the contractor apply a wetting agent to the asbestos material with a hand sprayer that creates a fine mist before removal. Wet fibers do not float in the air as easily as dry fibers and will be easier to clean up.
  • Make sure the contractor does not break removed material into smaller pieces. This could release asbestos fibers into the air. Pipe insulation was usually installed in pre-formed blocks and should be removed in complete pieces.
  • Upon completion, assure that the contractor cleans the area well with wet mops, wet rags, sponges and/or HEPA (high-efficiency particulate air) vacuum cleaners. A regular vacuum cleaner must never be used. Wetting helps reduce the chance of spreading asbestos fibers in the air. All asbestos materials and disposable equipment and clothing used in the job must be placed in sealed, leakproof, and labeled plastic bags. The work site should be visually free of dust and debris. Air monitoring (to make sure there is no increase of asbestos fibers in the air) may be necessary to assure that the contractor’s job is done properly. This should be done by someone not connected with the contractor.
Caution! 

Do not dust, sweep or vacuum debris that may contain asbestos. These actions will disturb tiny asbestos fibers and may release them into the air. Remove dust by wet-mopping or with a special HEPA vacuum cleaner used by trained asbestos contractors.