Caulking Hardiplank Siding

Hardie no longer recommends the caulking of any joint in their lap siding colorplus or primed.

Caulking hardiplank siding.

The nails holding up the siding should not be caulked. 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. 801 caulk 10 1 oz by dap best exterior caulk for hardiplank siding. James hardie is the world leader in fiber cement siding and backerboard.

James hardie color match caulk osi quad caulk for exterior door window and siding applications color matched to james hardie colors uv water resistant will not crack or yellow 1 tube covers 29 lineal feet at 1 4 bead width or 13 lineal feet at a 3 8 bead width paintable. We ve been providing a better way to build for over 100 years. But in our experience we saw that both of the corners and sometimes the crevices also some butt joints door trim boards and windows are quite common areas. James hardie does not recommend using caulk or h jointers for the butt joints of hardieplank siding with colorplus technology.

Overview rubber adhesive sealant caulk by flex shot best caulk for hardie board and interior objects. Osi quad product brochure. When putting on caulk most people decide where they want to put it. Overview all weather window door max shield by ge sealants and adhesive best caulking for hardie board siding in budget.

Because almost all of the james hardie product installed in edmonton is prefinished colorplus siding the caulking will. Similar to paint previous coats of. A diyer or a novice painter might attempt to achieve a cleaner look by caulking the siding nails but the nail is guaranteed to push the caulking material out within a few months. Wherever hardie siding meets a trim board the company recommends you leave a 1 8 gap between the siding and the trim and apply a 3 8 bead of approved caulking to protect and seal the edge of the siding.

Joint flashing butt joint horizontal lap treatment june 2014 james hardie does not. Is the old caulking removed before new coats are applied. James hardie also does not recommend applying caulk to the horizontal overlap between siding planks see figure 2. Joint flashing is recommended for all hardie lap siding now.

Deterioration of the caulking in the joint has become a maintenance issue for home owners over time.