Question? Just ask us!
Free Encyclopedia of Building & Environmental Inspection, Testing, Diagnosis, Repair
InspectAPedia ® Home
ENVIRONMENTAL HAZARDS - INSPECT, TEST, REMEDY
AIR CLEANER PURIFIER TYPES
AIR POLLUTANTS, COMMON INDOOR
AIR QUALITY IMPROVEMENT STRATEGIES
AIRBORNE PARTICLE ANALYSIS METHODS
ALLERGEN TESTS for BUILDINGS
ASBESTOS IDENTIFICATION IN BUILDINGS
BACKDRAFTING HEATING EQUIPMENT
BLACK MOLD, TOXIC & ALLERGENIC
BLEACHING MOLD, Advice about
BOOKSTORE - ENVIRONMENTAL
CADMIUM in the HOME
CARBON MONOXIDE - CO
CARPETING & INDOOR AIR QUALITY
CAT DANDER in BUILDINGS
CELL PHONE RADIATION
CHEMICAL CONTAMINANTS in WATER
COMBUSTION PRODUCTS & IAQ
DIRECTORY of MOLD / ENVIRONMENTAL EXPERTS
DUST SAMPLING PROCEDURE
EMERGENCY RESPONSE, IAQ, GAS, MOLD
EMF ELECTROMAGNETIC FIELDSRE
ENDOCRINE DISRUPTERS at BUILDINGS
FLOOD DAMAGE ASSESSMENT, SAFETY & CLEANUP
FLOOR TILE ASBESTOS IDENTIFICATION
FUNGICIDAL SPRAY & SEALANT USE
GAS EXPOSURE EFFECTS, TOXIC
HEATING OIL EXPOSURE HAZARDS, LIMITS
HOUSE DUST ANALYSIS
HOUSE DUST COMPONENTS
HUMIDITY CONTROL & TARGETS INDOORS
INDOOR AIR QUALITY IMPROVEMENT GUIDE
LAB PROCEDURES MICROSCOPE TECHNIQUES
LEAD POISONING HAZARDS GUIDE
LEGIONELLA LEGIONNAIRES' DISEASE
LIGHT, GUIDE to FORENSIC USE
METHANE GAS SOURCES
MILDEW in BUILDINGS ?
MOISTURE CONTROL in BUILDINGS
MOLD ACTION GUIDE - WHAT TO DO ABOUT MOLD
MOLD CONSULTANTS / INSPECTORS
MOLD DETECTION & INSPECTION GUIDE
MOLD EXPERT, WHEN TO HIRE
MOLD RELATED ILLNESS GUIDE
MSDS Material Safety Data Sheets
MVOCs & MOLDY MUSTY ODORS
NOISE / SOUND DIAGNOSIS & CURE
ODORS GASES SMELLS, DIAGNOSIS & CURE
OIL, HEATING, EXPOSURE HAZARDS, LIMITS
OIL HEAT ODORS & NOISES
OIL SPILL CLEANUP / PREVENTION
PET ALLERGENS / PET DANDER
PET STAINS & MARKS in BUILDINGS
PLASTIC ODORS-SCREENS, SIDING
PLUMBING SYSTEM ODORS
PVC - VINYL BUILDING PRODUCTS
RADON HAZARD TESTS & MITIGATION
SAFETY HAZARDS GUIDE
SAFETY HAZARDS & INSPECTIONS
METHANE GAS HAZARDS
SEPTIC SYSTEM ODORS
SEWAGE BACKUP TEST & CLEANUP
SEWER GAS ODORS
SMELL PATCH TEST to Track Down Odors
STAIN DIAGNOSIS on BUILDING EXTERIORS
STAIN DIAGNOSIS on BUILDING INTERIORS
SULPHUR & SEWER GAS SMELL SOURCES
UFFI UREA FORMALDEHYDE FOAM INSULATION
URETHANE FOAM Deterioration, Outgassing
VINYL CHLORIDE HEALTH INFO
VOCs VOLATILE ORGANIC COMPOUNDS
WATER ODORS, CAUSE CURE
How to repair & maintain asbestos cement siding. This article explains the maintenance, repair, or replacement of cement asbestos shingle siding on buildings. We describe how to remove and replace individual cement asbestos siding sections while keeping the total job small by avoiding breaking the surrounding shingles. We also describe installing new siding materials such as vinyl siding atop or over asbestos-cement shingle siding - a common practice.
This article series includes a photo guide and text that can help in identification of asbestos-containing wall siding products like asphalt shingles & asbestos-cement siding shingles.
Green links show where you are. © Copyright 2014 InspectApedia.com, All Rights Reserved.
But because the material is easily damaged by a heavy-handed worker unfamiliar with the materials involved, asbestos cement siding has to be repaired and maintained with care.
Replacement cementious wall shingle materials are now available that look almost exactly like the original materials, but that do not contain asbestos.
That's the product we have used to repair the building shown in the photographs in this article.
Small temporary wall siding repairs to individual shingles can be made using copper or aluminum flashing material -- it can be painted color that looks a lot like the remaining cement asbestos shingles, and this approach minimizes the chances of breaking more shingles during the repair.
Watch out: the siding removal procedures discussed in this article pertain to asbestos-cement shingles or fiber cement shingles, not to lap siding or "boards" made of fiber cement. For fiber cement lap siding removal see SIDING, FIBER CEMENT REMOVAL.
It is very difficult to remove individual broken asbestos-cement wall shingles, but working carefully it can be done.
Work by an inexperienced contractor can ruin a cement asbestos shingle wall siding and lead to complete replacement that could have been avoidable.
A common remodeling practice is to install new vinyl or aluminum siding over cement asbestos shingle siding as well as over many other older siding materials when the old siding has become damaged, leaky, or cosmetically ugly. A typical procedure is to install furring strips on the existing wall, avoiding breaking the existing siding. The new siding is then secured to the furring strips so that the new wall siding will be smooth and flat.
Additional steps may be needed to build out window and door trim for aesthetic reasons - so that the windows and doors do not appear to "recede" into the walls of the structure.
How to Remove Damaged Asbestos Cement or Fiber Cement Siding Shingles
Reader Question: Is there a tool for removing nails in cement asbestos shingle siding?
Is there a specific pry or cutting tool to grab and cut the nails On broken shingles you want to replace? - Catfishlynd 9/20/11
Reply: how to remove individual fiber cement or asbestos cement siding or roof shingles
When we had to remove broken fiber cement shingle siding we found that indeed it is difficult to remove one shingle without breaking others - making the job grow horribly.
Tools like a slate hook (SLATE ROOF SOURCES & TOOLS) and most types of wire cutters whose jaws required us to place the tool handle parallel to and flush with the shingle surface to get a bite on the nail head did not work because the thickness of the tool or the need to lift and pry the tool against the shingle surface broke fiber cement siding shingles when we tried sliding it between them.
A hacksaw blade can be used to cut the shingle nails and is so thin it won't break the shingles if you work carefully but it has two serious disadvantages:
What we found worked best was to use a pair of end-cutting pliers, called by some folks nippers or a "nail biter" - sold at hardware stores in various sizes.
Buy a tool whose handle and cutting face will be at right angles to the work surface and whose cutting face is flush (with the cutting angle filed just on the inside of the cutting edges. Working CAREFULLY we found we could usually grab the nail head protruding just proud of the fiber cement shingle and pull it straight out.
We use two sizes of end-cutting pliers made by Channellock, like the Channelock 358 8-inch End Cutting Plier tool shown in our photo just above. "Grab the nail head and yank" straight out seemed to work best.
Watch out: don't pry against the cement asbestos shingle with the nail puller nor other tools or you'll risk breaking the shingle below.
The nail extractor made by Jefferson Tools (shown at left) might also work provided that you do not pry directly against the cement asbestos shingle, OR you are prying only against a siding section that is already damaged and going to be replaced.
Green link shows where you are in this article series.
Frequently Asked Questions (FAQs)
No FAQs have been posted for this page. Try the search box below or CONTACT US by email if you cannot find the answer you need at InspectApedia.
Check the FAQs just above, try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly.
Search the InspectApedia website
HTML Comment Box is loading comments...
Technical Reviewers & References
Related Topics, found near the top of this page suggest articles closely related to this one.