Installing A Window Sill Extender

Casements and awnings are not compatible with a sill angle or head extender.

Installing a window sill extender.

Install filler by snapping leg of filler into. A sill extender is shipped with your order to allow height adjustments and is field trimmable. Sill extender is field trimmable for any necessary adjustments. Use a saw and cut the window sill flush with the wall on either side of the window.

Dows before window installation. This measurement is your window sill length. Determine your window sill horn overhang. To see hands on demonstrations of techni.

Use sandpaper to make sure the edge is flush and that it is smooth as well. 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. Press the sloped sill adapter onto the sill of the window. I typically use for an overhang.

Measure the distance between the two wall marks then add 1 1 2 inches to factor in your overhang on each side. If filler is too long trim to the measured length. Step 1 finishing the current window sill. Apply firm pressure to the adapter at the tape location to ensure proper adhesion to the window frame.

A permanent extender requires the installation of brackets into the wall studs beneath the window. 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. Install vinyl sill extender by sliding the extender up into the frame channel. You can replace your entire window sill to get the space you want or you can simply extend the window sill you already have.

One piece for the head and one for the sill. 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.