Hardiplank Over Asbestos Siding

Wood obviously is highly combustible.

Hardiplank over asbestos siding. In terms of fire resistance consider hardieplank a type of neutral building material. Or directly to minimum 7 16 thick osb sheathing. Hardiplank lap siding can be installed over braced wood or steel studs spaced a maximum of 24 o c. T 111 is one of the easiest prodeuct to side directly over.

Below are photos of a recent job we did siding over the t 11. Most siding companies are well experienced at techniques for covering over existing asbestos cement siding with new vinyl aluminum or fiber cement siding. Hardiplank lap siding can also be installed over foam insulation up to 1 thick irregularities in framing sheathing and or foam insulation can mirror through the finished application. By contrast vinyl siding derived from petroleum significantly f eeds flames.

I recommend placing the hardie siding directly over it. But be sure to check your local building codes first to see if it is allowed in your area. James hardie is the world leader in fiber cement siding and backerboard. While fiber cement is not a flame feeder it is still not as fireproof as cement asbestos shingles.

We ve been providing a better way to build for over 100 years. Also hardi is heavy and needs the attaching nails to be directly in the structural substrate. Alternatively if you leave the asbestos on your home you can safely seal the old siding underneath the new siding and because asbestos is an excellent insulator you will actually be adding to the energy efficiency of your home by leaving it on. This will look terrible and likely void the warranty.

Removing asbestos is often cost prohibitive for most people. Applying a layer of sheathing or sheets of foam insulation over the asbestos then covering it with vinyl siding is a common practice. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. If not the lap spacing on hardi is different than asbestos which will create a wave pattern on the hardi.

If a siding company removes an outer layer of siding and finds an older layer of asbestos cement siding beneath the standard procedure is simply to cover it over with new siding rather than remove it.