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How to Replace an Old Window
Tips on Replacing an Old Aluminum Window
with a New Vinyl Window
By Mark J. Donovan
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Question: Mark, I have a
question regarding aluminum frame windows. My home is about 30 years
old, and I want to replace the old windows with new vinyl windows. The
window frame has a flange nailed on the outside and the wood siding is
on top of it. There is no wood trim around the window. How do I remove
the old aluminum window frame and how do I install the new window?
Answer: D.C. Years ago I had a similar problem when I was replacing
old windows in my home.
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The siding was wood and it butted
right up against the old windows. What I wound up doing was cutting back the
siding about 3 inches around the top and sides of the old windows to expose the
window flanges. I used a skill saw to make the cuts after first measuring and
using a straight edge and pencil to mark my lines.
I then went inside the house and removed the interior wood trim pieces from each
of the old windows.
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Once I cut away the strips of siding
and removed the interior trim pieces, I was able to use a flatbar and hammer to
remove the nails that held the old window flanges in place. I was then able to
slide the old windows out of their window frame openings.
After removing each old window, I slid a new vinyl window into its place, and
made sure it was centered and level in the window opening. I then nailed the new
window flanges to the exposed house sheathing.
To complete the window replacement, I
then installed 3 inch wide, fully primed, wood trim pieces above and to the
sides of the new vinyl window.
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To make sure no water seeped in between the upper trim piece and side trim
pieces I installed small pieces of zip metal flashing on the top edges of the
two side pieces of trim. I also installed zip metal flashing over the top edge
of the upper trim piece. Finally, I caulked around the new vinyl window frames
and where the house siding met the new exterior window trim boards.
For more information on
Installing a New Window, see the
Installing a New Window Ebook from
HomeAdditionPlus.com. The Installing a New Window Ebook provides easy to
understand, step-by-step instructions, on how to remove an old window and
install a new one. Pictures are included for every key step in the process.
Related Information
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