If you need to stack posts end to end to reach the full height of the wall cut 1 4 inch from the bottom of the top post and position it so that it overlaps the lower post by 1 inch or so so it will shed water.
How to install multipl corner posts for vinyl siding.
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How to install vinyl siding corner post 973 487 3704 nj siding siding nj north haledon nj siding contractors affordable nj siding contractors how to replace vinyl siding outside corner posts outside corner posts proper installation properly tip.
Each corner should be hung straight so drop a plumb line for each corner post.
Hold the corner post up a bit and run the j channel beneath it instead.
Install outside and inside corner posts.
Place the corner post in position allowing a 1 4 6 4mm gap between the top of the post and the eave or soffit.
Corner posts above the roofline are a notorious source of water infiltration.
Hammer the first nail into the nailing slot.
The way to allow for this expansion is to install the corner post down from the soffit or top of the corner.
Keep a 1 4 inch gap between the top of the corner post and the soffit.
Installing vinyl siding can be a diy project with the right tools and know how.
If a corner post is installed tight to the shingles and the j channel dead ends into it any water that runs down the j channel will back up at the post and may find its way into the house.
After checking with a level for plumb nail them every 12 inches.
Position a nail at the top of the upper slot on both sides of the corner post leaving a gap of approximately 1 32 0 8mm between the nail heads and the corner posts.
Nail into place through the slots in the post with the nail at the top of the slot.
Be sure to nail all nails at the top of the slots so that the posts hang from the nails.