Simply apply this inexpensive filler into the cracks to seal.
Gaps at bottom of siding.
Position a stepladder if needed beneath the window door or other area with gaps in the exterior trim.
The relief cut prevents the strips we are making from clipping on the bottom of the siding snugly.
We provide a table of all fiber cement siding installation clearance or gap specifications caulking requirements storage or moisture requirements.
Also avoid caulking tongue and groove siding boards together.
1 to all roof coverings.
Hardie boards should be joined in moderate contact.
Seal small cracks and gaps in your siding under 1 4 inch wide using an acrylic latex caulk.
James hardie siding is 12 feet long which means that siding on your longer walls will need to join together.
Foam backer rod sounds like a good method to use if it should be sealed.
Step 7 seal larger gaps up to 1 2 inch wide with polyurethane caulk.
The foundation goes up a few inches more beneath the siding so the lowest set of nails holding the siding on are a few inches up from the bottom of the siding.
Bottom of siding boards should not be caulked water is meant to exit through the bottom of each board.
Paint works well over it.
While paint does tend to somewhat glue these pieces together caulking them is never advised and can cause permanent damage.
3 8 gap above windows and doors with visible flashing.
The gap is where the two meet.
Joining hardie boards together is actually very easy but there are a number of ways that contractors get it wrong.
Climb the ladder and inspect the caulking between the trim and the siding looking for.
At least 6 inches of clearance from the bottom of the siding to the finished grade.
If this is a problem you could just use a slightly wider strip that overlaps the relief cut.
3 16 gap at butt joints between horizontal sections and where the siding meets doors windows and corner trim.
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