Hardiplank Siding Joints

A wraparound lower lip hooks the siding and requires one nail to hold it in place.

Hardiplank siding joints. We ve been providing a better way to build for over 100 years. Joint flashing butt joint horizontal lap treatment june 2014 james hardie does not. The sheet should be removed immediately after each plank is installed. Framing square and torpedo level transfer stagger butt joints a mini the course elevations mum of 2 stud bays for 16 in.

James hardie is the world leader in fiber cement siding and backerboard. James hardie believes it is good building practice to seal the joints to prevent moisture such as wind driven rain and snow from penetrating the wall cavity. Joint covers are primed on the outside for easy painting and coated on the inside with an epoxy backer to. From the top edge and no closer than 3 8 in.

Hardieplank lap siding with colorplus technology is shipped with a protective laminate slip sheet which should be left in place during cutting and fastening to reduce marring and scratching. James hardie prefers and recommends installation of hardieplank lap siding by the blind nailing technique such that fasteners are hidden by the course above. Because james hardie paints. The joint covers protect the butt joint where two siding planks meet and provide an expansion joint to help prevent siding buckling.

Coating eliminates any reaction with fiber cement. Fasteners shall be installed between 1 in. James hardie does not recommend using caulk or h jointers for the butt joints of hardieplank siding with colorplus technology. Pre cut for quick and easy installation.

Use to reduce moisture penetration behind the joint where two planks butt together and drain water over the top edge of the last full course of siding. Use moderate contact on butt joints when joining two pieces of plank. Overview of hardieplank lap siding ends of planks must land over a stud. James hardie also does not recommend applying caulk to the horizontal overlap between siding planks see figure 2.

From the ends of the plank. Coating paint means no reflective flashback as found using regular metal flashing. 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 plank joints butt joints 4.

Framing starter strip starter strip builds out siding to the proper angle.