Install the corner posts.
How to install vinyl siding inside corners.
The corner posts should run from 3 4 inch 1 9 cm below the bottom of the starter strip to just beneath the eaves after the soffit pieces have been installed.
Install 1 2 inch 12 7 mm foam sheathing strips on both sides of each corner then install your corner siding pieces to these strips.
Position starter strip with the top edge of chalk line and allow room for corner posts.
Hammer the first nail into the nailing slot.
Partly drive a nail 11 2 in.
Insulation for vinyl siding 1.
Installing inside corner.
Expansionwhen the temperature changes vinyl siding expands and contracts.