white asbestos mostly; blue used until 1969, brown until 1980. A chisel may work for small tiles, but a pry bar may be needed too. The result is a wall covered in tiny, smooth pebbles. If you want to cover the pebbledash with a cladding panel system, you can expect to pay between £200 and £400 per square metre. pebbledash (ˈpɛbldæʃ ) to cover with pebble dash. Extraction of the sample: do not do it yourself. It is made from a blend of cellulose fiber mixed with sand, silica, and Portland cement. Due to asbestos naturally occurring in or near vermiculite deposits, there is always a possibility that mined vermiculite may contain asbestos, even today. Exterior asbestos cement cladding that looks like bricks, and asbestos cement eaves. The powder was dumped into a bucket and mixed with water to form a paste, then. Testing for asbestos was completed on a fragment of this flooring material. liquid dish soap per gallon of water. Keep in mind that asbestos was used in drywall compound, probably more-widely than in drywall. Asbestos and talc are not one and the same, but they are often found alongside each other in the earth. S. Thanks to its durability, asbestos has been included in plastic and fiberglass compounds used for the manufacturing of automobile body parts. Some walls might also have asbestos insulation. Individuals with past or ongoing exposure to asbestos face health risks like mesothelioma. Tremolite. £500 – £4,000. Asbestos-containing materials can exist in one of two states: friable and nonfriable. Owners concerned about possible asbestos in their fiber-based carpet underlay should contact an. While an expert lab test using polarized light microscopy may be needed to identify the specific type of asbestos fiber, or to identify the presence of asbestos in air or dust samples, many asbestos-containing building products not only are obvious and easy to recognize, but since there were not other look-alike products that were not asbestos. The cost to remove attic asbestos insulation can be rather high. The lining of the lung (pleura) thickens and swells. If the manufacturing label has a date from between 1940 and 1980, it has a higher chance of containing asbestos material. Rock dash stucco. The asbestos fibers can then be inhaled without knowing and trapped in the. Per the “lost-wax” casting method, a wax model is first hand-crafted, mounted onto a base by a sprue wire, and surrounded by a metal ring (a). We illustrate and include photographs of insulation materials that would not be expected to contain asbestos as. Roughcast (also called ‘wet-dash’ in Cumbria and ‘harling’ in Scotland) is a render with a coarse finishing coat containing gravel thrown in a premixed state onto a wall. But other sheet flooring products loosely called "linoleum" may indeed contain asbestos. Talcum powders containing asbestos could cause cancer or other adverse health outcomes when inhaled in significant quantities. Asbestos Ban and Phaseout Rule (Remanded ) On July 12, 1989, the EPA issued a final rule banning most asbestos-containing products. Talcum powder, which is derived from talc, is a naturally-occurring mineral. £500 – £4,000. How you treat popcorn ceiling texture depends partly on whether you think the texture material contains asbestos. Car Restoration: Asbestos & Exposure. The main way people are exposed to asbestos is by breathing in air that contains asbestos fibres. When plaster is sanded or drilled, it forms airborne dust, which can be particularly dangerous. It might have asbestos cement sheeting as a backing board, however. . Vermiculite insulation has a pebble-like appearance. Asbestos is a known carcinogen. Biggest misleading factor in designated substance industry is calling materials names that don. Vermiculite insulation looks like pebbles and typically is grayish-brown or silvery-gold. Among the reasons asbestos was used in walls was because of its fire resistance. S. Chanel announced in 2020 it was pivoting away from using talcum powder as an ingredient in many of its brands. If it is a modern, U. Asbestosis – This chronic condition aggravates lung tissues and creates scarring. PS- I still have an antique college text , from before political correctness. Coats of finishing plaster will need to be smooth to crate the ideal facing. [49] advises that Although the tile themselves are unlikely to contain asbestos, the grout and bedding may well contain asbestos and the demolition of the tile will likely create an exposure hazard when the grout and/or bedding are disturbed. Login . The soft mineral is widely used today in many products, including pharmaceuticals, cosmetics, chalk and ceramics. Technically speaking, exterior stucco does not contain asbestos particles in it. But to test an individual sample of vinyl tile, if mailed or dropped off at the facility, will cost between $50 and $100. It specifies types of augers, shovels, and other equipment. Contact your local health department for more information. 1 A higher rate of “idiopathic” mesothelioma has been reported in women, as no link between asbestos exposure and patients has been. In itself, pebbledash is not much of an issue; essentially no different from the render on my house, though changing it's appearance is not an easy option. 5mm or 1/16") suggests that this product was produced after 1980 and probably does not contain asbestos. Jewelers should do the following to limit asbestos exposure: Jewelers working with asbestos-containing gemstones are required by law to double-bag asbestos waste in 6 milliliter bags, place it in a sealed plastic container, label it properly and pay to dispose of it in a government-designated landfill. 1. The age of the structure is one indication that the lath and plaster contain asbestos. WHY WE SHOULD WORRY . There is some evidence that the Romans employed the technique, but it. Your building might contain asbestos if it was built or remodeled between the 1930s and the 1980s. The asbestos precautions make the milling more expensive than normal, Crochunis said: about $14 per square foot, versus $3. You can also call 608-261-6876 or visit our Asbestos Program page for a list of state-certified contractors and consultants. sheet flooring up to the mid 1980s could contain asbestos. Asbestos use has declined significantly since the late 1970s, when the U. Step 3: Remove The Tile. In fact, it is still legal to add asbestos to stucco (exterior cement plaster). Alternatively, if the pebble dash is extremely dirty or stained, a stucco cleaning soap can be used. 25%. Other companies that manufactured asbestos gaskets include: Flexitallic Gasket Company. This document assists building buyers, owners or inspectors who need to identify asbestos materials (or probable-asbestos) in buildings. Navy official photo of a Vanguard rocket. The cladding itself may or may not contain asbestos. Pebblecrete Removal. In the past, many manufacturing. Pebble-dash finish gives a rough surface finish and is obtained by means of small pebbles or. The STANDS4. In addition it could look like an accordion like texture, which can result in the particles puffing up. Asbestos occurs in six mineral types, and all have fibers that are harmful to lung tissue, getting embedded in lung tissue and causing inflammation, scarring, and eventually tumors. is not the same as pebble-dash, which is a modern, cement-based form of render. Serpentine asbestos has curly fibers made up of sheets of crystals. Their demolition may be a one-time activity and can even be under controlled conditions, but their active use cannot always be. and Canada into at least the early 1980's. Search for Phrases containing the term pebble-dash; Search for Poems containing the term pebble-dash;It is not possible to positively identify asbestos in vinyl flooring. Most major metropolitan areas will have testing labs. 90Amosite:This is also called “brown” asbestos, and experts consider it one of the most dangerous types. e. Use a utility knife or a small chisel to remove a small piece of the tile that you want to be tested. It can be dangerous for human health while demolishing. Image #2 (below) shows the fibers of the chrysotile type, which makes up about 90% of all commercially available asbestos. £2,000 – £4,000. It is made from a natural mineral material that is mined from the earth. Asbestos is the name given to a group of six different fibrous minerals (amosite, chrysotile, crocidolite, and the fibrous varieties of tremolite, actinolite, and anthophyllite) that occur naturally in the environment. Vermiculite Insulation. place" asbestos-containing materials that are in good condition. Contact your local health department for more information. from demolition, renovation and handling of asbestos is dangerous. g. Fill a bucket with hot water. Today, vermiculite is mined at three U. Found in roofs, ceilings, walls, and floors, buildings were once built with materials containing chrysotile. The mere presence of asbestos in a home or a building is not hazardous. not asbestos material but may contain traces of asbestos contamination. Special non. Asbestos fibers will be colorless, very fine and clumped together, like in the photograph. Asbestos ibers — even low exposure to them — are a health risk and can cause lung damage, including cancer. Vermiculite loose fill insulation has a pebble-like appearance and is grayish-brown or silvery-gold in color. 2. At any time, employers or building owners may demonstrate that a presumed asbestos-containing material does not contain asbestos by inspecting the material (conducted according to the requirements of the Asbestos Hazard Response Act (AHERA)(40 CFR 763, Subpart E) and by performing tests to prove asbestos is not. Managing my asbestos - A step by step guide. Assume that your home contains asbestos if it was built up to the 1970s. Remember that Asbestos is only really dangerous in high quantities, and even then, only in it's 'friable' state (meaning easily turned to dust). It’s best to ask a professional tradesperson to take care of this job – it might sound easy, but Pebbledash is a. Asbestos concrete/cement walls - Up until 1980, asbestos was a common addition to cement products and materials for building. However, there are a number of signs that could point to the presence of asbestos in plaster and lath. Cork pattern vinyl asbestos floor tiles were produced in at least three hues by Armstrong as well as Montgomery Ward and Sears and possibly Kentile and other companies. Houses built in the UK this century will not contain asbestos, but be wary if you are buying any property that is pre-1999. Chemically, asbestos minerals are silicate compounds, meaning they contain atoms of silicon and oxygen in their molecular structure. Keep small children and pets away from the decorating areaSpeakers slates. Just one puzzling question, what's with all the pebble dash. Only those with training and education in asbestos should remove plaster due to this risk. Asbestos floor and ceiling tiles proved particularly popular. Allura’s fiber cement is not made with asbestos. Just one puzzling question, what's with all the pebble dash. Do not cut, drill, grind, sand, saw or use high pressure water or air for cleaning. Sprayed 'limpet' asbestos on the underside of an asbestos cement roof. A 1998 study reported 82% of auto mechanics are frequently exposed to asbestos. However, many older homes still contain asbestos. Small levels of asbestos fibres occur naturally in air, including as a result of weathering breaking down asbestos-containing materials, windblown soil from hazardous waste sites or deterioration of motor vehicle clutches and brakes. Choose a product with a nozzle that fits the crack and is suitable for a caulking gun to make the application easier. The gray or black asbestos glue is usually made of crocidolite, while the white asbestos glue usually contains chrysotile fibers. On 2022-05-25 by InspectApedia-911 (mod) - 1970s gray paper backed flooring may contain asbestos. Eaves and asbestos. Newer forms of Hubbellite are not expected to contain asbestos. It is distinct from pebble dash (or ‘dry dash’) in which the aggregate is applied separately onto wet. • Avoid carrying asbestos ibers out of a worksite where they can later be inhaled by others (e. It may appear fibrous or may look like fallen snow or with a pebble-like form. ASBESTOS FLOORING ID REQUESTS 1960's FAQs at InspectApedia. While asbestos could be found in home ovens before the 1980s, it was more commonly used in industrial and laboratory. With use and the passage of time, this insulation may have become friable causing asbestos dust and fibres to be released if the hairdryers are handled or used. Fiberglass is shiny, fluffy, and white like. 5 Those include: Age. Asbestos is a very dangerous construction material used primarily before the1980s. Asbestos in walls can be present in many forms, including concrete, plaster, and drywall. If you aren’t sure what type of insulation your attic has, the best thing to do is to assume it contains asbestos. Pebbledash removal & re-rendering. In the U. The risk of taking this approach is that you can damage the brickwork underneath, and there is no guarantee that you will be left with a nice, smooth wall. 45 EST. Local testing labs will test your vinyl tile for reasonable fees. So before you do any activity that might disturb the material and release toxic asbestos fibers into the air, have the building tested by a licensed professional first. One of these, namely chrysotile, belongs to the serpentine family of minerals, while all of the others belong to the amphibole family. d) Pebble dash finish beyond 10 mm-275 percent e) Sponge finished plaster-25percent 3. So if any fiberboard product such as a ceiling tile or wall sheathing contains asbestos it would have to be either. Molded asbestos plastic products are generally less dangerous than other types of asbestos-containing materials because they are less friable, which means less easily crushed by hand. (Redmond 2011), "Sheetrock. If removing a large amount of material or if in doubt as to. This page provides a guide to identifying asphalt-asbestos flooring (ca 1920 - ca 1960) & vinyl asbestos floor tile (ca 1952 - 1986): identification photographs, product names, styles, colors, and vinyl-asbestos floor patterns, and colors for asbestos-containing floor tile products made between about 1920 and 1986 - flooring materials that are reported to or have been confirmed to contain. White asbestos: chrysotile, serpentine. Apologies for the delay. For example, asbestos was often used in plaster because of its thermic properties both to insulate and to serve as fire resistance. Asbestos Drywall History at a Glance. Pebble dash. Generally, asbestos-containing material that is in good condition and. Sun 30 Jan 2022 04. Let's now take a closer look at price estimates for different scenarios. Pebbledash Removal Type. Understanding how the material was historically used and its dangers is crucial for safe living if your home is older. If the Marblesheen coating was applied prior to 1990, it may include asbestos. Become a trained and accredited asbestos professional. Some storage heaters contain asbestos. Check the condition of walls and search for cracks or damps. Mesothelioma – Mesothelioma is a cancer of the membrane that lines the lungs, abdomen, chest, and heart. Asbestos in walls can be present in many forms, including concrete, plaster, and drywall. You can: avoid disturbing materials that may contain asbestos. , "hallway ceiling north end"). Better control methods, according to the Board, include chemical sealant, dust. Breathing in asbestos fibres can cause asbestosis, lung cancer and mesothelioma. Asbestos Packing materials. Photo: istockphoto. But asbestos was used in some special purpose high-temperature-exposure bricks. Asbestos was used in steel pipes to reduce their conductivity and increase their safety in areas prone to static charges. Use a 4-inch masonry brush or masonry block brush and work the paint into the pebbledash, making sure that all areas are well covered. Artex, for example, was still being made with white asbestos up until the mid 1980s. Those who work on eronite-containing roadways and in other industries where occupational exposure to eronite is common may be at greatest risk. blue asbestos mixtures used until 1971, then brown and white. You can also find asbestos in older cellulose insulation, loose-fill fibreglass, and rock wool insulation. 1973 - ARMSTRONG EXCELON VINYL ASBESTOS FLOOR TILES Complete Pattern & Color Guide, 9x9 &. Insulation. 7. Does Thompson’s Patio & Block Paving Seal change the colour of the stone? Patio & Block Paving Seal Natural finish will not change the colour of the stone. Miti . After we alerted parents. Roasted salmon with maple glaze. Does dry wall or sheet rock contain asbestos? There is no way to know whether these materials contain asbestos without having them tested. These were made from asbestos insulation board which was made up of up to 40% asbestos. 1st Layer: Hardwood 5" planks on joists over crawlspace (no subfloor). In the 60s and 70s asbestos use was at an all-time high. Pleural thickening is generally a problem that happens after heavy asbestos exposure. Asbestos has also been known to be included in fireplaces, wood-burning stoves and chimneys, along with the artificial ashes and embers sold for use in the fireplace. 2. Raybestos-Manhattan. But one of the most crucial factors is the type of paint to be used. DASH stands for Dietary Approaches to Stop Hypertension. Do not install shelving that connects with the ceiling. While it does have high insulating properties, it can also cause cancer. Asbestos in Bricks. However, It is hard to tell the difference between asbestos and cellulose insulation visually. WebMD. Car restoration puts enthusiasts at risk of asbestos exposure because asbestos was used in many car parts. Those products do not contain and never contained asbestos. kerching. Talcum powder is still an ingredient in a number of cosmetics brands. The recent innovation should provide a time-saving technique for commercial and home inspectors. hire a professional to test for asbestos before renovating or remodelling. We would like to show you a description here but the site won’t allow us. They are more commonly found in pitch roof buildings. Asbestos containing floor tiles in a corridor. [1] The materials are mixed into a slurry and are then thrown at the working surface with a trowel or scoop. When asbestos fibers are breathed in, they may get trapped in the lungs and remain there for a long time. Place the sample in a clean, high-quality zip lock bag or plastic container, then place that inside a second plastic bag. Storage heaters. Unlike water, soil asbestos can lead to exposure through inhalation. 1970-1972 ARMSTRONG VINYL ASBESTOS FLOOR TILE GUIDE to Patterns & Colors, 9x9 & 12x12-inch. Environmental Effects of Asbestos + 8 Ways to Limit Exposure. The best way to identify whether your insulation is asbestos or cellulose is through a lab test. Indeed, however, gray paper-like backing on U. If I wasn’t sure I wouldn’t take the risk and just not bother with the scraping. Login . Car restoration puts enthusiasts at risk of asbestos exposure because asbestos was used in many car parts. Rough cast is a lime-based render and should never be replaced by pebbledash Historic buildings do not have a ‘shelf life’. Asbestos siding removal can cost anywhere from $800-$1200 and sometimes more, depending on the size of the area for removal. In joint compound the asbestos content varied but typically was between 3-6%. Fireplaces, Wood-Burning Stoves and Chimneys. Serpentinite is a rock composed mainly of serpentine minerals. There are various types available and they will be applied over either a base coat or plasterboard. As long as. When exposed to heat, asbestos can be released into the air and breathed in,. It is installed by pouring it into the desired location. Vinyl is durable, so asbestos-containing vinyl tiles and floor coverings are likely to still be in many Australian homes built prior 1990. Smooth Coat Finish. In most areas asbestos fibers are not released into the air because the rock is too deep to be disturbed easily. Asbestos cement roof (damaged exterior)General points about asbestos: asbestos is a general name given to several naturally occurring minerals that have crystallised to form fibres. Although cement board, that is used for backing of stucco on exterior surface of building can contain asbestos. Pebble dashing, also known as roughcast, is a wall covering typically found on exterior walls. Pebble-dash exterior wall finishes were made popular in England and Wales since about the 1920’s, when housing was in greater demand, and builders were forced to cut costs wherever they could. Installation posed a low risk of exposure if the installer didn’t have to cut asbestos flooring to install the appliance. The other five known types of asbestos are crocidolite, amosite, anthophyllite, tremolite, and actinolite. If you current pebbledash render is in a state of disrepair that makes this impossible, the only solution is to strip all that render off the wall to create a good smooth surface. If you cannot remove the flooring without making a dusty mess, it may be worth having a sample of tile and. And while asbestos isn’t banned in the U. Anyone know if this is a risk. How to paint textured plaster/pebble-dash on wall and is there a chance it might contain asbestos?Asbestos is found naturally in rock and soil. In joint compound the asbestos content varied but typically was between 3-6%. Also, it is a common material that is known to contain asbestos. Asbestos is a very dangerous construction material used primarily before the1980s. The tile is 12 x 12 The back of the tiles have nothing on them other than maybe 2 blue arrows. org website: Pebble Dash Plaster Finish. Asbestos fibers are released into the air during activities that disturb asbestos-containing materials. 5. Asbestos as loose-fill insulation looks like shredded cotton. When this happens, talc can become contaminated with asbestos. . Asbestos waste should be disposed of separately from normal trash. These fibers are very strong and resistant to heat and chemicals. Removal should be attempted only by a professional asbestos abatement contractor trained in containing particles during demolition and disposal of insulation—services that could run $2,000 to. If your home was built after 1999 then the Artex in your home will not contain any asbestos. Add 1 tbsp. Name – Vermiculite is sold as Zonolite. For the New Holland Avenue segment, that raises the. Grey-brown or silvery-gold color, shiny as. For a 1960's vintage asbestos-containing floor tile photo guide, please also see 1960-1969 ARMSTRONG EXCELON FLOOR TILE GUIDE: VINYL PLASTIC ASBESTOS, 9" x 9" & beginning in 1960 available in 12" x 12" size. You will likely pay several hundred pounds less to. Older asbestos-containing products may also still be in use. 9. We’ve put together this handy guide to explain everything you need to know about asbestos and garages. For the lab to come to your house and take the sample, you can triple the price. Pebbledash removal to expose original brickwork. It can be dangerous for human health while demolishing. These after-bath items include body powders, similar to Johnson & Johnson Baby Powder. Traditional stucco is a mixture of cement and inert materials like sand, water, and lime used as an exterior wall. Vinyl floor tiles and covering and asbestos. S. The typical cost to paint a pebbledash house depends on the size of house and your location. ASBESTOS TESTING LAB LIST; DOES THIS FLOOR CONTAIN ASBESTOS? - 5 easy questions to tell if your FLOOR probably contains asbestos - Suggested citation for this web page. It is sometimes referred to as asbestos insulating board. Asbestos is present in thousands of buildings in the UK, like offices, homes and hospitals. Vinyl and asphalt asbestos tiles were popular in buildings and homes. The danger is that asbestos materials may. This high asbestos content posed risks to people who manufactured, installed or renovated the tiles. Note: It is also important to remember that people who smoke, and are also exposed to. Brown asbestos: amosite, amphibole. If a professional finds asbestos, hire a qualified asbestos removal specialist to remove it safely. The misuse and. Seal the plastic bag. Asbestosis (as-bes-TOE-sis) is a chronic lung disease caused by inhaling asbestos fibers. 1. noun. Watch out: Phillip A. asbestosis, a serious progressive, long-term, non-cancer disease of the lungs. What you can do to reduce your exposure to asbestos. Pebblecrete Removal is one of our team’s many specialties. It must be handled with absolute care. Its colors can range from white to silver, green, brown, gold, and blue. “Fire-Rated” Walls. But other sheet flooring products loosely called "linoleum" may indeed contain asbestos. Testing for asbestos was completed on a fragment of this flooring material. 0001 fibers/cc [Holland and Smith 2003]. Nowadays advances in render technology have allowed for renders that are made specifically for pebble dashing. Some walls might also have asbestos insulation. The next step to recognizing asbestos in. Asbestos exposure is. However, it was only recently that its cancer-causing nature was determined and older homes built before the late 1980s often have asbestos in their. place" asbestos-containing materials that are in good condition. Along the entire supply chain, from mining and shipping to use and disposal, workers and communities are at risk of exposure. If you have vermiculite insulation in your home, you should assume this material may be contaminated with asbestos and be aware of steps you can take to. Serpentine asbestos includes the mineral chrysotile, which has long, curly fibers that can be woven. Finding asbestos-free talc deposits throughout the world has been challenging for manufacturers. Asbestos concrete/cement walls - Up until 1980, asbestos was a common addition to cement products and materials for building. These fibers are long and curly and tend to wrap around themselves. Renovating and removing asbestos containing products can be complicated. So if the walls are labeled “fire-rated” and the house was built before the 1980s, the walls. Production and use of asbestos have declined since the 1970s. The asbestos cement sheeting is shown. If you have an older. You can’t identify asbestos sheetrock through smell or mere visual inspection. Test the ceiling tile for asbestos: Lab test a ceiling tile sample for asbestos content: if you face a costly dusty messy demolition it may be appropriate to have a sample of the ceiling tile tested. However, as a result of the Court's decision, only a few asbestos-containing products remain banned. What does pebble-dash mean? Information and translations of pebble-dash in the most comprehensive dictionary definitions resource on the web. You may want to print the result pages for your records. Granite Silicone Plaster. What does pebble dash mean? Information and translations of pebble dash in the most comprehensive dictionary definitions resource on the web. , most vermiculite insulation containing asbestos was sourced from a mine near Libby, Montana, which was active until 1990. Asbestos is a naturally occurring material that is present in soil and rocks. It is made from mineral material. Keene’s Cement Plaster. On 2019-01-28 by (mod) - does my pebble style flooring contain asbestos. It looks like this: The fibers on the right are asbestos, those on the left are animal hairs. Also, it comes from naturally occurring materials on Earth. Typical jobs we do to the exterior wall surfaces of homes include replacing tyrolean, render or pebbledash, filling and fixing cracked walls, replacing loose or missing brick work pointing mortar joints and damp proofing walls, including removal of moss, mould and algae. Bricks made of asbestos were fabricated, often for use as heating boiler or furnace combustion chamber or. The carcinogen can. white asbestos mostly; blue used until 1969, brown until 1980. Applying a product like EWI Pro’s OCDC over the top of the pebbledash before painting/rendering will give the entire property a smooth finish with minimal effort. The document has the following objectives: To describe. Before 1990, asbestos was mainly used for insulating buildings and homes against cold weather, noise and for fireproofing. ASBESTOS FLOOR TILE ID REQUESTS 1970's-2 additional floor tile requests, photos, advice for floors installed in the early 1970s. We explain in this article that the ingredients of true linoleum include natural resins, linseed oil, color pigments, cork powder and limestone, with a jute backing. Vinyl and asphalt asbestos tiles were popular in buildings and homes. Talc is mined from the earth, and many, if not most, talc deposits naturally contain asbestos. . Latest: binky. Decide how to deal with the different types of asbestos. Below we show a photo of the Armstrong© Stamp found on the under-side or "back" of 12 x 12 "stick-on" self-adhesive floor tiles produced by Armstrong. Peterson Vice President Fibertec Industrial Hygiene Services, Inc. We explain in this article that the ingredients of true linoleum include natural resins, linseed oil, color pigments, cork powder and limestone, with a jute backing. Do not use bunk beds in a room that. S. Vinyl tiles were common in pastel hues of blue, green, pink, and cream. On average, installing Allura siding costs $4. Currently, inspectors must send samples to off-site laboratories before. Asbestos is more commonly found in houses built before the 1990s and may be found as insulation around steam pipes or in asbestos-containing vermiculite insulation.