3 8 gap above windows and doors with visible flashing.
Gaps at bottom of siding.
The relief cut prevents the strips we are making from clipping on the bottom of the siding snugly.
1 to all roof coverings.
Foam backer rod sounds like a good method to use if it should be sealed.
This is messier than acrylic latex but effective.
Also avoid caulking tongue and groove siding boards together.
Hardie boards should be joined in moderate contact.
Paint works well over it.
The siding has many moisture weep holes i believe this relief cut simply allows for a very clean overlap of sections of siding.
While paint does tend to somewhat glue these pieces together caulking them is never advised and can cause permanent damage.
Fiber cement siding gap clearance caulking.
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James hardie siding is 12 feet long which means that siding on your longer walls will need to join together.
Position a stepladder if needed beneath the window door or other area with gaps in the exterior trim.
We provide a table of all fiber cement siding installation clearance or gap specifications caulking requirements storage or moisture requirements.
3 16 gap at butt joints between horizontal sections and where the siding meets doors windows and corner trim.
At least 6 inches of clearance from the bottom of the siding to the finished grade.
Joining hardie boards together is actually very easy but there are a number of ways that contractors get it wrong.
Bottom of siding boards should not be caulked water is meant to exit through the bottom of each board.
If this is a problem you could just use a slightly wider strip that overlaps the relief cut.
Climb the ladder and inspect the caulking between the trim and the siding looking for.
Seal small cracks and gaps in your siding under 1 4 inch wide using an acrylic latex caulk.
Simply apply this inexpensive filler into the cracks to seal.