Hardiplank Siding Joints

James hardie also does not recommend applying caulk to the horizontal overlap between siding planks see figure 2.

Hardiplank siding joints. James hardie does not recommend using caulk or h jointers for the butt joints of hardieplank siding with colorplus technology. 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. James hardie recommends that you consult your design professional if you have questions regarding the use of rainscreen on your single family project. James hardie recommends the use of caulks and sealants that remain permanently flexible.

From the ends of the plank. Hardiplank lap siding must be installed correctly to perform properly. 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 james hardie siding is 12 feet long which means that siding on your longer walls will need to join together.

Joint flashing butt joint horizontal lap treatment june 2014 james hardie does not. Hardie boards should be joined in moderate contact. Hardiplank lap siding field butt joint flashing detail. James hardie prefers and recommends installation of hardieplank lap siding by the blind nailing technique such that fasteners are hidden by the course above.

Do not use stains or oil based alkyd paints on james hardie products. I think personally with the different methods of install on this product from. Re applying caulking when it has begun to show signs of wear can help keep moisture from getting into the wall cavity. James hardie is the world leader in fiber cement siding and backerboard.

Flashing under field butt joints is necessary to keep water and weather away jharrison john harrison cmi june 19 2013 11 45pm 16. For additional information on finishing james hardie products download technical bulletin 22 from here. From the top edge and no closer than 3 8 in. 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.

Fiber cement siding repair or patching. James hardie recommends installing a rainscreen an air gap between the hardiepanel siding and the water resistive barrier as a best practice.