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Installation Instructions

Please Consider: This section is for information purposes and is not designed to be a "Do It Yourself" guide.  Some carpentry skills and tool knowledge are essential to take on any major remodeling project.  Incorrect installation can lead to water problems now and eventually mold and rotting. Hiring a professional to replace your windows is always the best decision.

Caution: Always make sure the dimensions of the new replacement windows are correct before removing the old window or wood sashes.

Important: Do NOT use expanding or spray type foams. They will distort the window frame causing operating and performance problems and often void any manufacturer warranty.

 

WOOD WINDOW REPLACEMENT

You don't have to cut the existing window opening bigger to accommodate a larger window or patch the inside walls and siding because the new window should be slightly smaller than the old opening. Since the new replacement windows will be built to fit your existing openings, no other major alterations need to happen. Usually, a little caulking and some minor touch-up painting is all that's necessary.

It's best if you have a helper, at least someone to hold the window in place while you attach the window with screws.

From inside the home, use a flat pry bar to remove the stop moldings on the sides and top of the window. Pull the bottom sash inside. You'll have to cut the weighted ropes on each side to release the window. The lead weights will then drop down inside the wall cavity. Don't worry, you won't need them. Once the bottom sash is out, remove the top sash the same way. You should then brush or vacuum any debris from the opening.

Slide the new window into the opening to check the fit. If all looks good, remove the window and prepare the opening for installation. Each window manufacturer may have their own specific instructions for installation. Generally, you'll want to run a bead of caulk on the sill and sides for the new window to “set” in. Most windows will have pre-drilled openings in the sides for screws, which are also usually provided.

Next, set the new window back into the opening. Press the unit forward to rest against the outside window stops. Check the window for level and move sides up or down with shims to make level.  Check for square on the sides and move window right or left using shims to make square.

After installing the screws through the jambs, check each window for smooth operation. You may find it necessary at this point, to remove or add shims for proper operation of the window.

After you are comfortable with the operation of each unit, you'll want to slide the extension moldings to take up any extra space. You can then apply a bead of caulk around all four sides of the window, inside and out.

 

MASONRY & BRICK VENEER WALLS

You don't have to cut the existing window opening bigger to accommodate a larger window or patch the inside walls and siding because the new window should be slightly smaller than the old opening. Since the new replacement windows will be built to fit your existing openings, no other major alterations need to happen. Usually, a little caulking and some minor touch-up painting is all that's necessary.

It's best if you have a helper, at least someone to hold the window in place while you attach the window with screws.

Verify the measurement of the new windows before removing old windows.

Remove all glass from the interior of the frame. Most windows have vinyl or putty glazing compounds that may need to be removed in order to get the glass out.

Next, cut the inside and outside caulking that connects the frame to the siding or sheetrock.

Remove existing framing of old window and prepare opening for new unit by removing all obstructions.

Insert the new window into the prepared opening.  Gap between the opening and the new window should be less than 1/2 inch but not less than 1/8 inch to provide adequate room to adjust the plumb and level of the new unit.

Tighten fastening devices with the window in the square and plumb position and with the sashes closed and locked. Use shims as needed to make sure the window is in the right position.

After securing the window, check for proper operation of the sashes and locking mechanisms.

Caulk, trim and cap off where necessary.

 

When installing new windows never over tighten the screws as this could cause the framing to bow.

When installing large windows or windows with high wind load requirements, interior and exterior blind stops man be necessary.  Please check your local building codes for any installation requirements.

 

 

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Last modified: 3MAR2007
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