Cement Board Siding Joints

Founded in the mid 1950s this diversified japanese company has been quietly producing fiber cement siding products for years mainly for commercial properties.

Cement board siding joints.

This has proven problematic over time as caulking the joint results in unsightly surface appearances due to the different textures as well as resulted in failure of the caulk joint and associated ongoing maintenance. It is never acceptable to leave a gap of any size at a butt end joint. 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. For pricing and availability.

How to flash siding butt joints after the siding is installed. 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. Fiber cement siding accessories. A common problem with cement board siding products and some other types of horizontal lap siding is that older installation guidelines called for caulking the joint instead of flashing the joint.

A mark parlee a general contractor in des moines iowa responds in my experience water that gets trapped against fiber cement sidingcan be absorbed by the material causing joints to swell and shrink during freeze thaw cycles. Your nearest restaurant bank theater or grocery store just might be sided with nichiha fiber cement board. The joint covers protect the butt joint where two siding planks meet and provide an expansion joint to help prevent siding buckling. James hardie is the world leader in fiber cement siding and backerboard.

We ve been providing a better way to build for over 100 years. Joint covers are intended for use with hardboard and cement siding. A wraparound lower lip hooks the siding and requires one nail to hold it in place. Caulk is usually used with fiber cement siding to prevent water intrusion at the butt joints.

If you have never heard of nichiha fiber cement siding you are not alone. Fiberglass cement siding is a composite made of portland cement silica and wood fiber. Do not caulk fiber cement siding butt joints edges. James hardie 8 25 in x 144 in hz10 hardieplank cedarmill fiber cement lap siding.

Butt end joints should be installed with factory sealed or factory prefinished ends butted together in moderate contact. For pricing and availability.