Caulking Hardieplank Siding

Metal flashing or any metal to wood joint should not be caulked another water exit pathway that should never be sealed.

Caulking hardieplank siding.

Siding nails should not be caulked another item that needs room to play is siding boards themselves. Joe i think your image is specifically for colorplus where they don t recommend caulking. 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. Hardiplank and other brands of cement siding are among the most durable of all siding materials.

For regular hardiplank lap siding the kind you paint after installation caulking at butt joints is optional. Hardieplank lap siding is not just our best selling product it s the most popular brand of siding in america. Osi quad product brochure. Typically made of a high density combination of cellulose fiber cement and sand fiber cement siding is tough termite resistant water resistant and non combustible.

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. Hardie board siding runs about 0 70 to 5 25 per square foot this could lead to a total cost of anywhere from 4 700 to 13 300 why such a huge flux in the price range. You have to consider the amount of siding you ll need how long it will take and any additional fees for equipment and materials. The nails holding up the siding should not be caulked.

A high quality paintable caulk is recommended. 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. This from installation instructions.