Hardiplank Siding Joints

To help you get your project done right the first time we ll be gathering tips answers to commonly asked questions and more about james hardie siding installation.

Hardiplank siding joints.

Fasteners shall be installed between 1 in. Re applying caulking when it has begun to show signs of wear can help keep moisture from getting into the wall cavity. James hardie does not recommend using caulk or h jointers for the butt joints of hardieplank siding with colorplus technology. James hardie prefers and recommends installation of hardieplank lap siding by the blind nailing technique such that fasteners are hidden by the course above.

Joint flashing butt joint horizontal lap treatment june 2014 james hardie does not. Joining hardie boards together is actually very easy but there are a number of ways that contractors get it wrong. We ve been providing a better way to build for over 100 years. I think personally with the different methods of install on this product from.

Hardie plank joints butt joints james hardie siding is 12 feet long which means that siding on your longer walls will need to join together. Hardie boards should be joined in moderate contact. Flashing under field butt joints is necessary to keep water and weather away jharrison john harrison cmi june 19 2013 11 45pm 16. Fiber cement siding repair or patching.

Hardiplank lap siding field butt joint flashing detail. James hardie is the world leader in fiber cement siding and backerboard. If you don t find the answer to your question you can browse hardieplank lap siding installation instructions here just be sure you re using the right instructions for. For additional information on finishing james hardie products download technical bulletin 22 from here.

James hardie recommends installing a rainscreen an air gap between the hardiepanel siding and the water resistive barrier as a best practice. Hardiplank lap siding must be installed correctly to perform properly. James hardie also does not recommend applying caulk to the horizontal overlap between siding planks see figure 2. From the top edge and no closer than 3 8 in.

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. James hardie recommends that you consult your design professional if you have questions regarding the use of rainscreen on your single family project.