Caulking Cement Siding

And it just kind of swells and shrinks with the weather and it shows after you paint it.

Caulking cement siding. 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. Also avoid caulking tongue and groove siding boards together. Fiber cement siding gap clearance caulking specifications. Good for gutters siding and concrete.

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. 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 last one was quad. Cleanup can be difficult if you get this caulk on clothing gloves shoes or skin.

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. 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.

Dap alex plus 12 pack 10 1 oz white paintable latex caulk. Item 157140 model 11532. Fiberglass cement siding is a composite made of portland cement silica and wood fiber. Metal flashing or any metal to wood joint should not be caulked another water exit pathway that should never be sealed.

The best exterior caulk for roofing construction and repairs since it can withstand extreme temperatures and creates a strong insulating and water tight seal. Many professionals like those at james hardie also agree that you should not use caulk on fiber cement siding unless there is no metal flashing underneath. Well i ve got cement board siding and occasionally a crack appears.