Caulking Cement Siding

The following information is adapted expanded a bit from certainteed corporations installation instructions for the company s fiber cement siding products as this is the most comprehensive guide we could find for caulking clearance instructions when installing fiber cement siding.

Caulking cement siding.

Once painted it looks almost identical to wood. Fiberglass cement siding is a composite made of portland cement silica and wood fiber. Cleanup can be difficult if you get this caulk on clothing gloves shoes or skin. It s available in many styles and widths both smooth and wood textured and you still get the crisp joints and details that ll make your home s exterior stand out.

Flashing acts as a waterproofing layer for this type of siding and caulking will prevent the flashing from doing its job. Also avoid caulking tongue and groove siding boards together. Good for gutters siding and concrete. Siding nails should not be caulked another item that needs room to play is siding boards themselves.

And it just kind of swells and shrinks with the weather and it shows after you paint it. 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. The nails holding up the siding should not be caulked. Is there anything out there you could help me with to repairs cement board siding.

The last one was quad. The best exterior caulk for roofing construction and repairs since it can withstand extreme temperatures and creates a strong insulating and water tight seal. Metal flashing or any metal to wood joint should not be caulked another water exit pathway that should never be sealed. Well i ve got cement board siding and occasionally a crack appears.

Item 157140 model 11532. And i m wondering i ve tried a couple different caulks. Caulking around windows doors eaves and trim edges gives added insurance that leaks will not occur.