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ToxinFree

Where Does Asbestos Hide in Your Home?

Asbestos was used in over 3,000 different products. It does not have a distinctive look. The only way to confirm its presence is professional laboratory testing. This guide helps you know which materials deserve extra caution.

Friable: Friable materials release fibers more easily when touched or damaged.

Roof

Deteriorated roof shingles showing age and damage

Asbestos-Cement Roofing Sheets

Risk if disturbed: criticalNon-friable

Era of use: 1930–2000

If intact

Monitor condition annually. Do not power-wash or drill.

If damaged

Do not touch. Contact a certified asbestos removal company.

Before renovation

Professional asbestos inspection required before ANY work on or near these materials.

Roof Felt and Bitumen Underlayment

Risk if disturbed: highNon-friable

Era of use: 1940–1980

If intact

If hidden under tiles and intact, no immediate action required. Record location.

If damaged

Do not tear or cut damaged felt. Wet the area before any handling. Contact professional.

Before renovation

All roofing work on buildings built before 1985 should include asbestos survey for felt underlayment.

Asbestos-Cement Corrugated Roofing Sheets

Risk if disturbed: criticalNon-friable

Era of use: 1940–2000

If intact

Do not walk on, drill, or power-wash. Apply sealant coat to reduce surface weathering.

If damaged

Weathered sheets release fibers continuously. Do not sweep or blow debris. Wet and contain.

Before renovation

Removal requires full PPE, wetting, and disposal as asbestos waste. Never break sheets.

Exterior Walls

Exterior building siding showing age and deterioration from weather exposure

Asbestos-Cement Roofing Sheets

Risk if disturbed: criticalNon-friable

Era of use: 1930–2000

If intact

Monitor condition annually. Do not power-wash or drill.

If damaged

Do not touch. Contact a certified asbestos removal company.

Before renovation

Professional asbestos inspection required before ANY work on or near these materials.

Asbestos-Cement Flat Sheets

Risk if disturbed: criticalNon-friable

Era of use: 1930–2000

If intact

Do not drill, cut, or abrade. Annual visual inspection recommended.

If damaged

Isolate the area. Do not attempt self-removal. Contact certified asbestos professional.

Before renovation

Mandatory professional asbestos survey before any cutting, drilling, or demolition work.

Expansion Joints and Asbestos Caulk

Risk if disturbed: criticalFriable

Era of use: 1940–1980

If intact

Do not pick at, scrape, or remove. If fully encapsulated and stable, monitor annually.

If damaged

Crumbling caulk must be professionally encapsulated or removed. Do not vacuum with standard vacuum.

Before renovation

Window replacement and facade work in pre-1980 buildings must include testing for asbestos caulk.

Walls & Interior Surfaces

Exterior building siding showing age and deterioration from weather exposure

Pipe and Boiler Insulation

Risk if disturbed: criticalFriable

Era of use: 1920–1980

If intact

Have a professional assess condition. Do not touch or disturb.

If damaged

DANGER: Do not enter area without protection. Contact certified asbestos removal immediately.

Before renovation

Mandatory professional removal before any work in the area.

Asbestos-Cement Flat Sheets

Risk if disturbed: criticalNon-friable

Era of use: 1930–2000

If intact

Do not drill, cut, or abrade. Annual visual inspection recommended.

If damaged

Isolate the area. Do not attempt self-removal. Contact certified asbestos professional.

Before renovation

Mandatory professional asbestos survey before any cutting, drilling, or demolition work.

Joint Compound (Drywall Taping Mud)

Risk if disturbed: criticalFriable

Era of use: 1945–1977

If intact

Painted, intact joint compound poses minimal risk. Do not sand or scrape.

If damaged

Crumbling compound must not be disturbed. Wet the area and contact a professional.

Before renovation

ANY sanding of walls in pre-1977 construction must follow asbestos-safe procedures or professional testing first.

Thermal Insulation Board (Marinite / Monokote)

Risk if disturbed: criticalFriable

Era of use: 1935–1978

If intact

Do not disturb. High asbestos content makes any damage extremely hazardous.

If damaged

Evacuate area. Do not attempt any cleanup without full PPE and professional guidance.

Before renovation

Mandatory removal by licensed contractor before any adjacent renovation or demolition work.

Spray-Applied Fireproofing (SFRM)

Risk if disturbed: criticalFriable

Era of use: 1958–1978

If intact

Restrict access to areas with exposed spray-applied material. Regular inspection required.

If damaged

Immediately restrict area. Contact licensed asbestos abatement contractor. Do not attempt any cleanup.

Before renovation

All structural work in commercial buildings built 1958–1978 requires asbestos survey before proceeding.

Asbestos Insulating Board (AIB)

Risk if disturbed: criticalFriable

Era of use: 1930–1980

If intact

Do not drill, cut, or sand. Even minor disturbance releases significant fiber concentrations.

If damaged

Evacuate and restrict access immediately. This is a licensed contractor job — no DIY options.

Before renovation

AIB is the most frequently encountered high-risk asbestos material in UK/European commercial demolition.

Expansion Joints and Asbestos Caulk

Risk if disturbed: criticalFriable

Era of use: 1940–1980

If intact

Do not pick at, scrape, or remove. If fully encapsulated and stable, monitor annually.

If damaged

Crumbling caulk must be professionally encapsulated or removed. Do not vacuum with standard vacuum.

Before renovation

Window replacement and facade work in pre-1980 buildings must include testing for asbestos caulk.

Laboratory Bench Tops and Fume Hood Liners

Risk if disturbed: criticalFriable

Era of use: 1950–1985

If intact

Do not sand or abrade. Cover damaged surfaces with appropriate sealant until professional can assess.

If damaged

Remove students and staff from area. Contact school facilities manager and asbestos professional.

Before renovation

School laboratory refurbishment must include full asbestos survey before bench removal or modification.

Ceiling

Textured acoustic ceiling showing popcorn-like pattern
Acoustic ceiling tiles in suspended frame system

Textured Ceiling Coating (Popcorn Ceiling)

Risk if disturbed: criticalFriable

Era of use: 1950–1985

If intact

Do not scrape, sand, or drill into ceiling. Monitor for water damage.

If damaged

Do not disturb. If water-damaged, contain area and contact professional.

Before renovation

Professional testing required before any ceiling work. Never scrape or remove without certified abatement.

Asbestos-Cement Flat Sheets

Risk if disturbed: criticalNon-friable

Era of use: 1930–2000

If intact

Do not drill, cut, or abrade. Annual visual inspection recommended.

If damaged

Isolate the area. Do not attempt self-removal. Contact certified asbestos professional.

Before renovation

Mandatory professional asbestos survey before any cutting, drilling, or demolition work.

Joint Compound (Drywall Taping Mud)

Risk if disturbed: criticalFriable

Era of use: 1945–1977

If intact

Painted, intact joint compound poses minimal risk. Do not sand or scrape.

If damaged

Crumbling compound must not be disturbed. Wet the area and contact a professional.

Before renovation

ANY sanding of walls in pre-1977 construction must follow asbestos-safe procedures or professional testing first.

Acoustic Ceiling Tiles

Risk if disturbed: criticalFriable

Era of use: 1958–1980

If intact

Do not puncture, break, or disturb tiles. Water damage significantly increases risk.

If damaged

Seal off area. Do not sweep up debris. Contact certified removal company immediately.

Before renovation

All suspended ceiling tiles in commercial buildings built before 1985 should be tested before any overhead work.

Thermal Insulation Board (Marinite / Monokote)

Risk if disturbed: criticalFriable

Era of use: 1935–1978

If intact

Do not disturb. High asbestos content makes any damage extremely hazardous.

If damaged

Evacuate area. Do not attempt any cleanup without full PPE and professional guidance.

Before renovation

Mandatory removal by licensed contractor before any adjacent renovation or demolition work.

Spray-Applied Fireproofing (SFRM)

Risk if disturbed: criticalFriable

Era of use: 1958–1978

If intact

Restrict access to areas with exposed spray-applied material. Regular inspection required.

If damaged

Immediately restrict area. Contact licensed asbestos abatement contractor. Do not attempt any cleanup.

Before renovation

All structural work in commercial buildings built 1958–1978 requires asbestos survey before proceeding.

Asbestos Insulating Board (AIB)

Risk if disturbed: criticalFriable

Era of use: 1930–1980

If intact

Do not drill, cut, or sand. Even minor disturbance releases significant fiber concentrations.

If damaged

Evacuate and restrict access immediately. This is a licensed contractor job — no DIY options.

Before renovation

AIB is the most frequently encountered high-risk asbestos material in UK/European commercial demolition.

Floor

Vintage vinyl asbestos floor tiles with geometric pattern

Vinyl-Asbestos Floor Tiles (9×9 inch)

Risk if disturbed: highNon-friable

Era of use: 1950–1980

If intact

Safe if undamaged. Do not sand, scrape, or remove yourself.

If damaged

Avoid disturbing. Cover with new flooring if possible. Consult professional for removal.

Before renovation

Professional inspection required. Do NOT remove tiles yourself — the adhesive (mastic) may also contain asbestos.

Vinyl-Asbestos Floor Tiles (12×12 inch)

Risk if disturbed: highNon-friable

Era of use: 1960–1986

If intact

Do not sand, scrape, or buff aggressively. Cover with new flooring rather than removing.

If damaged

Restrict access to damaged area. Consult licensed asbestos professional before any work.

Before renovation

Both the tiles AND the black mastic adhesive beneath may contain asbestos — test both before any removal.

Floor Tile Adhesive (Black Mastic)

Risk if disturbed: criticalFriable

Era of use: 1950–1985

If intact

Do not disturb. If covered by intact tiles, risk is minimal.

If damaged

Do not scrape or sand the black adhesive under any circumstances. Contact asbestos professional.

Before renovation

Even if tiles are asbestos-free, the mastic adhesive beneath tiles installed before 1985 must be tested before removal.

Basement

Pipe and Boiler Insulation

Risk if disturbed: criticalFriable

Era of use: 1920–1980

If intact

Have a professional assess condition. Do not touch or disturb.

If damaged

DANGER: Do not enter area without protection. Contact certified asbestos removal immediately.

Before renovation

Mandatory professional removal before any work in the area.

Asbestos Rope and Gaskets (Industrial)

Risk if disturbed: criticalFriable

Era of use: 1920–1990

If intact

Wear gloves when handling. Avoid disturbing. Note location for future maintenance records.

If damaged

Do not remove or handle without respiratory protection. Contact professional for replacement.

Before renovation

All industrial equipment maintenance in facilities built before 1990 should assume gaskets may contain asbestos.

Brake Linings and Friction Products

Risk if disturbed: criticalFriable

Era of use: 1920–2000

If intact

Avoid blowing out brake assemblies with compressed air. Use wet methods or vacuum with HEPA filter.

If damaged

Do not handle worn brake components without respiratory protection. Dispose of as hazardous waste.

Before renovation

When servicing older vehicles, assume brake and clutch components may contain asbestos. Use wet suppression methods.

Fireproof Blankets and Asbestos Textiles

Risk if disturbed: criticalFriable

Era of use: 1920–1985

If intact

Do not shake, fold, or flex old fire blankets. If suspected asbestos, do not use — replace immediately.

If damaged

Handle with extreme care using full PPE. Place in sealed container. Dispose as asbestos waste.

Before renovation

Old fire blankets, curtains, and protective clothing found in industrial settings must be tested before handling.

Utility Room

Industrial pipes with thermal insulation wrapping in basement or utility room
HVAC ductwork and ventilation system in commercial building

Pipe and Boiler Insulation

Risk if disturbed: criticalFriable

Era of use: 1920–1980

If intact

Have a professional assess condition. Do not touch or disturb.

If damaged

DANGER: Do not enter area without protection. Contact certified asbestos removal immediately.

Before renovation

Mandatory professional removal before any work in the area.

Thermal Insulation Board (Marinite / Monokote)

Risk if disturbed: criticalFriable

Era of use: 1935–1978

If intact

Do not disturb. High asbestos content makes any damage extremely hazardous.

If damaged

Evacuate area. Do not attempt any cleanup without full PPE and professional guidance.

Before renovation

Mandatory removal by licensed contractor before any adjacent renovation or demolition work.

Asbestos Rope and Gaskets (Industrial)

Risk if disturbed: criticalFriable

Era of use: 1920–1990

If intact

Wear gloves when handling. Avoid disturbing. Note location for future maintenance records.

If damaged

Do not remove or handle without respiratory protection. Contact professional for replacement.

Before renovation

All industrial equipment maintenance in facilities built before 1990 should assume gaskets may contain asbestos.

Brake Linings and Friction Products

Risk if disturbed: criticalFriable

Era of use: 1920–2000

If intact

Avoid blowing out brake assemblies with compressed air. Use wet methods or vacuum with HEPA filter.

If damaged

Do not handle worn brake components without respiratory protection. Dispose of as hazardous waste.

Before renovation

When servicing older vehicles, assume brake and clutch components may contain asbestos. Use wet suppression methods.

Asbestos Insulating Board (AIB)

Risk if disturbed: criticalFriable

Era of use: 1930–1980

If intact

Do not drill, cut, or sand. Even minor disturbance releases significant fiber concentrations.

If damaged

Evacuate and restrict access immediately. This is a licensed contractor job — no DIY options.

Before renovation

AIB is the most frequently encountered high-risk asbestos material in UK/European commercial demolition.

Laboratory Bench Tops and Fume Hood Liners

Risk if disturbed: criticalFriable

Era of use: 1950–1985

If intact

Do not sand or abrade. Cover damaged surfaces with appropriate sealant until professional can assess.

If damaged

Remove students and staff from area. Contact school facilities manager and asbestos professional.

Before renovation

School laboratory refurbishment must include full asbestos survey before bench removal or modification.

Fireproof Blankets and Asbestos Textiles

Risk if disturbed: criticalFriable

Era of use: 1920–1985

If intact

Do not shake, fold, or flex old fire blankets. If suspected asbestos, do not use — replace immediately.

If damaged

Handle with extreme care using full PPE. Place in sealed container. Dispose as asbestos waste.

Before renovation

Old fire blankets, curtains, and protective clothing found in industrial settings must be tested before handling.

Underground / Water Supply

Asbestos-Cement Water Pipes

Risk if disturbed: criticalNon-friable

Era of use: 1930–1990

If intact

Drinking water risk is low if pipes are intact and not corroded. Test water quality if pipes are aging.

If damaged

Do not cut or drill. Contact utility authority or licensed contractor for assessment.

Before renovation

All underground AC pipe excavation requires licensed asbestos contractor and proper disposal protocols.

Not sure about your building?

Use the Risk Checker to get a personalized assessment based on your country and building age.

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Material data sourced from EPA and WHO. Presence in any specific building can only be confirmed by professional sampling and laboratory analysis.