New and old fiber cement and asbestos cement shingles side by side (C) Daniel FriedmanSources of Replacements for Asbestos-Cement Wall Siding & Fiber Cement Roof Shingle Cutters
     

  • ASBESTOS CEMENT SIDING REPLACEMENT - Sources of Replacements for Asbestos Cement Shingles - Where to buy fiber cement shingles or fiber cement building siding when replacement or repair of damaged asbestos cement shingles is needed
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Where to buy replacements for asbestos cement shingle siding: this article explains why, where & how to obtain replacement non-asbestos fiber cement shingles to repair or replace asbestos cement shingle siding.

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Sources of Replacements Asbestos & Fiber Cement Wall Shingles

Fiber Cement Siding wavy edge pattern from GAF (C) InspectApediaContemporary cement asbestos product manufacturers make reinforced fiber-cement wall and roofing shingles and other products which look like, perform similarly to, and need to be installed similarly to the original asbestos-cement shingles - but these new products are free of asbestos.

Modern replacements for asbestos cement wall siding products are reinforced with a variety of fibers including fiberglass. Other replacements for asbestos-cement siding use both different fibers and a different aggregate (perlite) to replace the asbestos. Some of the substitute products have been in use for more than 30 years (2008).

GAF's WeatherSide® fiber cement siding is a perfectly-matching replacement for older asbestos-cement or fiber cement products orginally produced by Supradur, and is sold in the three standard patterns illustrated here.

The three most-common current and traditional fiber cement siding patterns are all wood-grain surace-patterned products in three different bottom-edge designs: straight (shown at the top of this page), wavy (shown at left), and thatched (shown below).

Contemporary cement asbestos product manufacturers make reinforced fiber-cement wall and roofing shingles and other products which look like, perform similarly to, and need to be installed similarly to the original asbestos-cement shingles - but these new products are free of asbestos.

Modern replacements for asbestos cement wall siding products are reinforced with a variety of fibers including fiberglass. Other replacements for asbestos-cement siding use both different fibers and a different aggregate (perlite) to replace the asbestos. Some of the substitute products have been in use for more than 30 years (2008).

GAF's WeatherSide® fiber cement siding is a perfectly-matching replacement for older asbestos-cement or fiber cement products orginally produced by Supradur, and is sold in the three standard patterns illustrated here. The three most-common current and traditional fiber cement siding patterns are all wood-grain surace-patterned products in three different bottom-edge designs: straight (shown at the top of this page), wavy, and thatched (shown below).

Where to Buy Replacements for Asbestos-Cement or other Fiber Cement Wall Siding

Fiber Cement Siding WeatherSide Thatched Edge Pattern from GAF (C) InspectApediaFor maintenance or replacement of asbestos-cement wall siding or roof shingles (or wall siding) contact the GAF Premium Products Corporation or look for the company's WeatherSide® fiber cement siding at Home Depot® stores.

The original producer of asbestos cement and later fiber cement siding, Supradur Manufacturing Corporation, was liquidated in bankruptcy proceedings and sold to GAF Premium Products, Corp. on 20 July 1995. GAF, principally a producer of roofing products also continues to produce and distribute fiber cement siding (WeatherSide® fiber cement siding). The company can be contacted at

GAF Premium Products, Corpo., 440 Katherine Rd Wind Gap, PA, 18091 United States (610) 863-4101 http://www.gaf.com 

According to the company's website:

WeatherSide™ fiber cement siding contains NO asbestos

and the current fiber cement siding product available from GAF is

Virtually identical in size and shape to millions of old non-existent siding shingles installed over the last 50 years. and
WeatherSide™ fiber cement siding meets or exceeds UL approved non-combustible testing (ASTM E136 & UL 723)

Current fiber cement wall siding from GAF in the three edge-designs shown above is provided in three different versions that offer different thicknesses, exposures or weights as summarized in our table just below.

Table of Modern Fiber Cement Shingle Type Siding Product Specifications
GAF Shingle Model Dimensions Exposure Weight Lbs/Square Comments
Purity™ Straight / Wavy Edge 12" x 24" x 11/64" thick 11" 168 lbs  
Purity™ Thatched Edge 12" x 24" x 11/64" thick 10 1/2" 186 lbs  
Profile™ Straight Edge 9" x 32" x 11/64" thick
12" x 24" x 11/64" thick
14 5/8" x 32" x 11/64" thick
8"
11"
13 5/8"
177 lbs
165 lbs
171 lbs
 
Emphasis™ Thatched Edge 14 5/8" x 25" x 9/32" 13" 268 lbs Extra Thick

Notes:

Source: GAF Products Corporation, retrieved 8/20/2013, original source: http://www.gaf.com/Other_Building_Products/Siding/WeatherSide_Fiber_Cement_Siding

Up to 1995 contractors could contact Supradur Manufacturing Corporation, PO Box 908, Rye NY 10580 800-223-1948, or from within New York State, 914-967-8230 to purchase Supradur® mineral fiber shingles.

Thanks to reader Terry Jones, a roofing wholesaler at Roofing Wholesale, Inc., Phone 800.282.4737, Fax 614.486.7817 , for the Supradur to GAF sale update (8/20/2013).

Replacement for Asbestos-Cement Roof Shingles

One manufacturer of cement-asbestos shingles was Ruberoid Co., who made 8" x 16" tapered singles with a surface pattern resembling wood and called "Ru-Ber-Oid-Eternit Tapered Timbertex Asbestos-Cement Shingles." 260 singles/525 lbs/square, were available in a wide range of colors.

For handling and disposal guidance concerning old cement-asbestos wall siding material contact the US EPA, your state Department of Environmental Protection/Conservation, or your local building and health departments.

Sources of Tools for Cutting Fiber Cement Shingles: Roofing Shingles or Wall Siding Shingles

Bullet Tools 920 Pro Magnum Shear 9-20 electricity free fiber cement shingle cutterWatch out: However very old, weathered and worn asbestos cement shingles, such as on a roof or sometimes on a wall that has been painted and is peeling, or roofing or wall cement asbestos shingles that are mishandled during demolition (breaking into many small pieces, running hand or power saws to cut the material) risks creating airborne asbestos-contaminated dust which could be a health and environmental hazard.

When we installed asbestos cement shingle siding we rented a guillotine chopper that cut the material while producing a minimum of dust.

A modern version of this fiber cement cutter that is hand-lever operated and does not require electricity is the Bullet Tools 920 Pro Magnum Shear I-20 Electricity Free 20 Inch Flooring and Siding Dust Free Cutter (photo at left) - this is a great tool, but a bit steep for a homeowner or do-it-yourselfer at around $900.

Malco fiber cement shear cutting tool TSFC


A modern fiber cement shingle cutting tool used for the same purpose is the Malco® TSFC Tubo Shear fiber cement cutting tool also used to cut cement backerboard and similar products.

The Malco fiber cement and backerboard shear is powered by a separate cordless or wall-power connected electric drill.

Malco also produces the TSF2A, a heavy-duty pneumatic shear cutting tool for the same purpose.

Similar shear tools are produced by quite a few other manufacturers including the tools listed below. At Reviewers (scroll down past the links) we list sources to purchase these tools.

Added demolition and disposal cost of cement-asbestos products

Also in some communities special measures and added costs are involved because of a requirement for air-testing during removal and possibly costs to dispose of the material in an appropriate landfill. (After all, originally this material came from the land.)

Thanks to reader Van Moore for technical editing and requesting clarification.

Painting Cement Asbestos Building Siding

Should I paint my asbestos cement shingles? Do you need to use special paint for cement asbestos siding?

Painting cement asbestos siding or non-asbestos fiber cement siding is in part a cosmetic decision. We have rarely seen this material in a worn, friable condition, but should that occur, one might paint the surface also to stop fiber shedding and to preserve the material.

And of course fiber cement products such as those sold hy GAF (Sources of Replacements for Asbestos Cement Shingles) come with a factory-applied primer intended to be "ready for painting".

Fiber cement shingles, both new non-asbestos product and the older asbestos-cement product are provided from the manufacturer with a coated surface, usually white. When the asbestos cement siding is soiled or moldy or has an algae coating we prefer to gently clean the surface with a sprayer, perhaps a deck cleaner solution.

Watch out: If you use a power washer be careful to spray "down" (to avoid blowing water into the building walls) and to keep far enough away that you do not damage the siding or "rough it up" which may cause more rapid deterioration or even fiber or asbestos release.

But sometimes the asbestos cement or fiber cement shingles just look soiled and do not clean up enough to satisfy the homeowner. In general, this siding material can be painted using normal house paints. Check with your paint suppliers because some paints may not be recommended for the surface. Be sure to use both a primer and top coat that are recommended for use on cleaned fiber cement siding as recommended by the manfacturer of both the siding and the paint.

Then be sure that the siding is dry before applying either primer or paint.

Watch out: But once you paint the fiber cement or asbetsot cement siding, you've converted a "no maintenance" surface into one that will occasionally need to be re-painted for cosmetic reasons. On a home we maintained for nearly 20 years, the factory-applied original coating endured perfectly well whereas neighboring homes of the same age and using the same siding but that had been painted required re-painting from time to time.

 

Continue reading at ASBESTOS ROOFING / SIDING DUST or select a topic from the More Reading links shown below.

Or see FIBER CEMENT SIDING - (non-asbestos products)

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ASBESTOS CEMENT SIDING REPLACEMENT at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice.

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