Installing A Window Sill Extender

30 door 30 32 door 32 34 door 34 step 3 installing sill extender with the sill extender cut to the proper length attach the extender to the sill that is on the door system.

Installing a window sill extender.

Measure the distance between the two wall marks then add 1 1 2 inches to factor in your overhang on each side. A permanent extender requires the installation of brackets into the wall studs beneath the window. Press the sloped sill adapter onto the sill of the window. Apply firm pressure to the adapter at the tape location to ensure proper adhesion to the window frame.

Measure across window from jamb to jamb at the head and sill. If filler is too long trim to the measured length. Sill extender is field trimmable for any necessary adjustments. The aluminum sill extender is sized for a 36 wide door narrower units will need to have the extender cut to the same size of the sill.

Install vinyl sill extender by sliding the extender up into the frame channel. Determine your window sill horn overhang. Dows before window installation. If an extender isn t permanently fastened to a wall or sill then position your plants carefully so the extender doesn t become stressed near an edge and collapse.

This measurement is your window sill length. To see hands on demonstrations of techni. Mark a reference line on the wall on each side of the window. Use a saw and cut the window sill flush with the wall on either side of the window.

Step 1 finishing the current window sill. Install filler by snapping leg of filler into. Use sandpaper to make sure the edge is flush and that it is smooth as well. Casements and awnings are not compatible with a sill angle or head extender.

One piece for the head and one for the sill. I typically use for an overhang.