Sealant For Fiber 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.

Sealant for fiber cement siding.

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. Fiber cement siding gap clearance caulking specifications. More and more homes and townhouses are popping up around the country with fiber cement siding. 7 inch wide smooth lap siding primed about 1 50 per square foot picking the right siding for your house is a delicate balancing act between good looks durability maintenance and affordability.

In my experience water that gets trapped against fiber cement siding can be absorbed by the material causing joints to swell and shrink during freeze thaw cycles. A mark parlee a general contractor in des moines iowa responds. The siding on this gothic revival style home looks like wood clapboard but it s actually fiber cement painted a custom color. 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.

May be painted with a water based paint approximately one hour after. Jaime prefers to use the vinyl mounting blocks typically used with vinyl siding. Our fiber cement siding options whether your dream house is a classic colonial ladylike victorian or handsome craftsman our diverse and detailed siding options will help you create a historically accurate architecturally correct and flat out gorgeous home. James hardie recommends the use of caulks and sealants that remain permanently flexible.

Check with the fiber cement siding manufacturer s recommendations before using titebond weathermaster sealant. Placing caulk over large portions of wood siding prohibits the natural movement of the wooden panels and can cause extensive damage to the exterior of your home. There are many fiber cement siding manufacturers each providing their individual recommendations and guidelines for siding installation. How to paint fiber cement siding.

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. Flashing acts as a. On our jobs we typically don t leave gaps for caulk at butt joints because this detail can contribute to the problem. Find fiber cement siding accessories at lowe s today.