Best Caulk For Hardie Board Siding

Bottom of siding boards should not be caulked water is meant to exit through the bottom of each board.

Best caulk for hardie board siding.

This is chicago so the temperature and humidity extremes are pertty substantial. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. For best results use an elastomeric joint sealant complying with astm c920 grade ns class 25 or. This means that hardie contractors are used to overapplying their caulking and letting it shrink over time.

What you want to use is a silicone caulk because it s the most permanent one. While paint does tend to somewhat glue these pieces together caulking them is never advised and can cause permanent damage. Caulking them is a mistake and the caulking is likely to fail prematurely. Rubber adhesive sealant caulk by flex shot best caulk for hardie board and interior objects.

You can use this sealant anywhere and on any kind of surface from cement to wood metal to plywood. Quad caulking is uv resistant and flexible and when it cures it shrinks about 30. 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. For years quad caulking by lepage has been the standard hardie caulking in the edmonton market.

So what i would tell you to do is to use a colored caulk to choose the caulk in the color of the siding. Higher or a latex joint sealant complying with astm. Price is a lesser consideration than durability and latex paint holding ability. 801 caulk 10 1 oz by dap best exterior caulk for hardiplank siding.

All weather window door max shield by ge sealants and adhesive best caulking for hardie board siding in budget. James hardie does not recommend the use of caulk at field butt joints. Caulking around windows doors eaves and trim edges gives added insurance that leaks will not occur. It s got good adhesion and expands and contracts.

Hardy plank cannot be stained.