Subtract inch 6 4 millimeters to allow for expansion.
How to install vinyl siding soffit and fascia.
Cut the soffit panels to the measured size.
Most overhangs are 6 or 1.
For open overhangs use f trim which has been nailed to the wall of the house.
Certainteed installation guide for vinyl carpentry soffit fascia.
Use the following instructions for vinyl soffit and fascial installation.
Slide one end into the j channel and nail the far side of the soffit to the wood fascia board using one nail to keep the soffit in place until you install the vinyl fascia.
Cut your soffit pieces.
Using a level make pencil marks on the wall parallel with the lower edge of wood fascia board at the end of each wall.
Determine the preferred method of installing soffit at the fascia board.
Since soffit runs perpendicular to the wall you will be cutting many short pieces depending on the width of your overhang.
When installing j channel at either wall of fascia board nail every 8 to 12 203mm to 305mm.
Measure the distance between the channels.
Attach an f channel to the bottom outer edge of the fascia board.
Place the soffit panels in the channel slots so that the panels meet.