CertainTeed Vinyl Siding Installation Guide
Cedar Impressions Inside Cornerpost
Siding and accessories alone are not meant to be a watertight barrier. Before applying siding and accessories, make certain the substrate is watertight. Flash the substrate so that it sheds water outside the siding.
Cedar Impressions panels are installed from right to left. If the application situation allows, install both wall sides at the corner at the same time. This will allow you to make small corrections to the Inside Cornerpost installation as you move up the wall.
Installing Cedar Impressions Inside Cornerpost
When installing Inside Cornerposts, be sure to run Cedar
Impressions Metal Starter to the inside corner.
Install Cedar Impressions panels from right to left. Install the Cedar Impressions panels into the inside corners. Leave a 3" gap on each side of the corner.
Once the panel has been fastened, hook the Cornerpost over the siding, making sure it is locked into the starter strip. Nail through the top two holes of the Cornerpost. Continue installing the Cornerpost as you move up the wall.
When you reach the top panel, cut the Cornerpost to length and nail it with a
If the Inside Cornerpost is installed before the siding, you will have to cut the Cedar Impressions panel to fit.
Measure from the edge of the last installed panel to the edge of the Cornerpost. Add
to length.
Angle the panel under the Cornerpost and slide it to the left until the side tabs clear. Then slide the panel to the right until the correct temperature marks on the panel are lined up.
Fasten the panel to the wall.
