Trim boards that sit on top the siding.
Caulking hardie plank siding.
If nail is countersunk caulk nail hole and add a nail.
Deterioration of the caulking in the joint has become a maintenance issue for home owners over time.
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.
James hardie recommends the use of quality hot dipped galvanized nails.
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.
Electro galvanized nails are acceptable for use with james hardie siding products but may exhibit premature corrosion.
Rubber adhesive sealant caulk by flex shot best caulk for hardie board and interior objects.
801 caulk 10 1 oz by dap best exterior caulk for hardiplank siding.
It s also recommended to use a cloth or rag ready to wipe up and smooth excess caulking before it sets on the siding what should never be caulked.
Can you tell me what gap you use between butt joints on horizontal lap siding and the best caulk for the joint.
James hardie also does not recommend applying caulk to the horizontal overlap between siding planks see figure 2.
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.
Hardie no longer recommends the caulking of any joint in their lap siding colorplus or primed.
I am planning to install horizontal hardie plank lap siding and the hardie info says use a latex sealant per astm c834 or c920 grade ns class 25.
Fasteners must be corrosion resistant galvanized or stainless steel.
How much expansion contraction is going to take place with this siding.
Joint flashing is recommended for all hardie lap siding now.