Joint Flashing For Hardie Siding

James hardie recommends that a slip sheet joint flashing is installed behind each butt joint in the siding.

Joint flashing for hardie siding.

There is no need to leave a gap for expansion. This is a 6 wide piece of weather resistive material to make sure that no water gets through. Each sheet is pre cut with a stick it adhesive for the fastest application available. H jointer covers james hardie recommends 6 inch 152 4 mm wide joint flashing that overlaps the course below by 1 inch 25 4 mm.

Bearskin joint flashing is a plastic sheet for use as a joint flashing behind every butt joint in the siding. The product is a proprietary plastic 20 year uv rated sheet 4 ml thick that is basically a six by twelve post it note. Coating eliminates any reaction with fiber cement. Joint flashing material must be durable waterproof material that does not react with cement based products.

Some local building codes may require different size flashing. 8 aluminum butt joint flashing. Hardiplank lap siding must be installed correctly to perform properly.