Fiber Cement Siding Gaps

You will have to repaint it eventually.

Fiber cement siding gaps.

Both certainteed and jameshardie as of september 2008 have made clear that siding butt joint gaps should never be made that is. Absorptive claddings like fiber cement can hold moisture leading to panel damage rot and even mold problems. Fixing holes in fiber cement. Do not deliberately leave butt joint gaps in fiber cement lap siding and that they do not recommend caulking field cut butt joints in their board type fiber cement siding products.

While a paint job on fiber cement siding lasts longer than wood usually anywhere between five to fifteen years it will eventually need to be redone. James hardie recommends the use of caulks and sealants that remain permanently flexible. Fiber cement must be repainted. Unlike vinyl aluminum and other siding materials if you choose to install fiber cement cladding be prepared.

Jaime prefers to use the vinyl mounting blocks typically used with vinyl siding. We include diagnostic inspection photos and text explain how to recognize diagnose and cure this problem. When james hardie siding products butt into wood based materials a 1 8 gap will allow for expansion and contraction of the wood based product. Siding butt joint treatment.

It is critical that all installation steps are very carefully followed by a professional to ensure all penetrations and gaps are properly treated with the appropriate paint or caulk to protect the panels from moisture infiltration. When installing fiber cement siding be sure to leave at least clear space between the siding and the flashing vertical siding should be installed and attached to the structural framing when a non structural sheathing gypsum board or foam type sheathing are used. It is available in a variety of sizes and shapes to match many of the old siding shingles installed over the last 60 years. Most fiber cement manufacturers make mounting blocks for lights electrical receptacles a c lines pvc venting etc.

The siding on this gothic revival style home looks like wood clapboard but it s actually fiber cement painted a custom color. Weatherside fiber cement siding is the one and weatherside fiber cement siding is the one and only solution for replacing or repairing old asbestos siding shingles. They re cheaper and easy to install and you can cut the proper size hole in a plastic mounting block with a utility knife or a snips. There s no doubt that removing entire sections of board risks damage to corresponding areas but in many ways it s the only tried and true way of how to repair cracked fiber cement siding.

This article series includes field reports of fiber cement board lap siding butt joint gap problems fiber cement moisture problems and other fiber cement lap siding installation or in service defects their diagnosis repair.