Caulking Hardieplank Siding

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.

Caulking hardieplank siding.

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. Also avoid caulking tongue and groove siding boards together. This from installation instructions. Hardiplank and other brands of cement siding are among the most durable of all siding materials.

A high quality paintable caulk is recommended. 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. Metal flashing or any metal to wood joint should not be caulked another water exit pathway that should never be sealed. Osi quad product brochure.

Joe i think your image is specifically for colorplus where they don t recommend caulking. For regular hardiplank lap siding the kind you paint after installation caulking at butt joints is optional. Because almost all of the james hardie product installed in edmonton is prefinished colorplus siding the caulking will. Siding nails should not be caulked another item that needs room to play is siding boards themselves.

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. Caulking around windows doors eaves and trim edges gives added insurance that leaks will not occur. The nails holding up the siding should not be caulked.