WEATHERPROOF, Finish and Maintain

•Add insulation to air space between opening and unit.

•Caulk around entire perimeter of unit on exterior side; seal sealing fins to siding

or facing, seal front bottom edge of sill, seal all joints between jamb and mouldings.

•Seal joints between exterior hardware trim and door face to prevent air and water infiltration.

•Paint or stain according to Therma-Tru instructions. Do not paint gaskets or weatherstrip.

•Maintain or replace sealants and finishes as soon as any deterioration is evident. For semi-gloss or glossy paints or clear coats, do this when surface becomes dull or rough. More severe exposures require more frequent maintenance.

•All Therma-Tru doors must be finished and maintained in accordance with our recommendations. Failure to do so may affect the applicable warranty.

•Remove sill tape and labels on glass.

•Use touch-up paint to paint heads of rough opening screws

JAMB EXTENSION INFORMATION

The following images are intended to help clarify how a patio door is installed in different frame openings.

The jamb extensions are made of standard wood trim materials, readily available from lumber yards and building material retail stores.

Attach the jamb extensions through the side into the wall.

Exterior	Exterior
1 1/8”	1 1/8"

4 9/16"

6 9/16"

2 x 4 CONSTRUCTION

2”

3/4"

2 x 6 CONSTRUCTION