Caulking Hardie Board Siding

Rubber adhesive sealant caulk by flex shot best caulk for hardie board and interior objects.

Caulking hardie board siding.

25 4 mm on overlap no caulk figure 1 figure 2 9. Osi quad product brochure. 801 caulk 10 1 oz by dap best exterior caulk for hardiplank siding. 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.

Also avoid caulking tongue and groove siding boards together. Joint flashing butt joint horizontal lap treatment june 2014 james hardie does not recommend caulking butt joints or the horizontal overlaps joint flashing 6 in. Caulking around windows doors eaves and trim edges gives added insurance that leaks will not occur. All weather window door max shield by ge sealants and adhesive best caulking for hardie board siding in budget.

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. While paint does tend to somewhat glue these pieces together caulking them is never advised and can cause permanent damage. This video is about how to like a pro. Hardie no longer recommends the caulking of any joint in their lap siding colorplus or primed.

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