Best Caulk For Hardie Board Siding

So here i am telling you about the best caulk for hardie siding.

Best caulk for hardie board siding.

That is why we are showing you some other products for various surfaces along with our top pick. 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. So what i would tell you to do is to use a colored caulk to choose the caulk in the color of the siding. Trim boards wood windows.

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 recommend caulking butt joints or the horizontal overlaps joint flashing 6 in. Best caulk for fiber cement siding or hardiplank siding lets you have the perfect sealing your surface needs. Once all caulk is dry and your siding is clean you ll paint hardie plank with a high quality exterior grade acrylic latex.

What you want to use is a silicone caulk because it s the most permanent one. But you are correct that it is very difficult to paint. Fiber cement boards are caulked only when there is no metal flashing behind them. Caulking around windows doors eaves and trim edges gives added insurance that leaks will not occur.

You can use this sealant anywhere and on any kind of surface from cement to wood metal to plywood. A professional exterior painting expert will use a spray application for a smooth factory like finish. Then make sure the coating is completely dry before applying the 2 nd coat. Pros and cons of painting hardie plank.

We only caulk butt joints on cedar siding if previously caulked. Big stretch acrylic latex caulking sealant by sashco. Some manufacturers do not require the metal flashing therefore we caulk the butt joint to keep the pieces together and also prevent moisture. James hardie also does not recommend applying caulk to the horizontal overlap between siding planks see figure 2.

The dap 18110 acrylic latex caulk takes only half an hour to harden after which you can add any kind of paint or polish over it. 152 4 mm wide 1 in. In this article i ll talk about the caulk sealants i personally used. 25 4 mm on overlap no caulk figure 1.