Insulation for vinyl siding 1.
How to install vinyl siding inside corners.
Installing inside corner.
Position starter strip with the top edge of chalk line and allow room for corner posts.
Install the corner posts.
The way to allow for this expansion is to install the corner post down from the soffit or top of the corner.
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.
Each corner should be hung straight so drop a plumb line for each corner post.
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.
Expansionwhen the temperature changes vinyl siding expands and contracts.