Siding Window Trim Installation

These instructions describe and illustrate the steps involved in installing certainteed siding trim and accessories.

Siding window trim installation. Using the snap lock punch punch the panel 1 4 in. The resulting raised lugs should face outward and will snap into undersill trim. Position the siding to be notched below the window. Furring may be necessary to maintain proper pitch of the siding.

Install undersill trim the width of the window flush to the casing. Their purpose is to provide detailed information and how to tips that will simplify the installation process. Where edges of trim meet siding material windows doors or other finished openings leave a minimum 3 16 inch 5 mm space to allow for proper sealing. Measure from the locking tab of the siding below to the undersill trim to determine the depth of the notch.

Below the cut edge at 6 in. Along the tops install j channel trim with horizontal siding and base trim with vertical siding. Cutting siding around window. We have dozens of installation specialists throughout the u s.

Install the tops first then the sides and then the bottoms of the window surrounds. Do not miter corner joints of band boards fascia corner trim etc. This video shows the installation of siding j channel around doors and windows. Proper installation is critical.

Mark the cuts for siding under the window. As a homeowner you will work with a contractor who will facilitate the installation of your james hardie siding trim soffit wrap and flashing products including products with colorplus technology. Install door window trim. Mark it on each side of the window allowing an extra 1 4 in.

Before installing door and window trim first caulk around the openings to create a moisture and air proof seal. Installing vinyl siding around windows. Provide increased spacing along the trim if specified by the siding application instructions. See diagram 2e 4a.

Gap on each side for expansion.