Hardie Board Siding Seams

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.

Hardie board siding seams.

Fiber cement board lap siding repair guide. Homesteaders and farmers would use sawmills to cut the long boards and the battens were put in place to make the structure as airtight as possible. Mix up enough mortar to fill in all seams and joints and cover the nail holes in the backer board. Any lower and you might see a few nail heads poking through the bottom of the next board any higher and your siding is likely to be loose and could even rattle in the wind.

This article describes repair procedures for cosmetic or functional siding issues that may arise such as loose siding wind damaged siding siding paint or coating failures and siding gaps especially gaps at fiber cement siding butt joints where lap siding is installed. Hardie board siding created by james hardie and also known as cement board siding has been around forever but its popularity seems to come in streaks. The james hardie co. Manufactures and sells a range of exterior shingle siding board panel and trim products.

2 house built before 2008 so has no flashing okay to caulk. Typically billed as a low maintenance long lasting material does it measure up to its reputation. 1 i chose this caulk because it has 25 flexibility compared to silicone based caulk. Traditionally board and batten siding starts with wide vertical planks boards which are then joined together by thin vertical strips battens to cover the seams.

Hardie plank siding has a nail line across the top of the board that is 1 down from the top and nails are supposed to fall between and 1 from the top of the board to give the best hold. Hardiepanel vertical siding is one of their key product lines and like other hardie materials it is constructed of cement and fiber for durability. We ve been providing a better way to build for over 100 years. Sand the edges of the hardi board smooth by hand and remove all dirt and debris prior to finishing hardi board.

Use backer board screws for the best installation. James hardie is the world leader in fiber cement siding and backerboard. James hardie recommends the use of caulks and sealants that remain permanently flexible. James hardie recommends installing a rainscreen an air gap between the hardiepanel siding and the water resistive barrier as a best practice.