i am trying to fix and repair old window. the wood is rotten and water
can come thro. i need to fill the space between the wood fram and wall
and the base (from inside). I do not know which material i can use to
fill these spaces/holes etc? i prefer something can work with the wood
and also water proof, any idea please? thanks.
1. Would it be more economical in the long run to have a
professional installer replace the window (& frame) with a
modern one? If not:
2. Replace all rotted wood that you possibly can.
3. Fill voids around all edges with expanding foam insulation
from a spray can. This provides a good thermal barrier but
is not waterproof: i.e. you may need also to:
4. Inspect/repair exterior flashing.
Sorry I did not mean not replying but I posted a new post with
internet links (pictures of my windows) but it did not get posted!! I
thought I am not allow to post pictures. I will try again to send
pictures (maybe I do not know how to do it correctly)
When you get the basic damage repaired, use 3M Bondo for your filler/
reconstruction. Obviously if it can stand the environment in vehicle
repair, it will work well on your project. Fast cure, tough and
paintable...all the the attributes you need. Much cheaper than epoxy
kits, and UV resistant, too.
I've been using Bondo All Purpose Putty for years. It's usually my "go
to" product for big repairs. HD used to sell it in gallon cans but now
they sell it in 1/2 gallon sizes and charge about the same. IMO it's the
best stuff for tricky repairs when you don't want to do a tear out.
Paintable, drillable, long lasting etc....
Remember - it is NOT waterproof - so it MUST be sealed and painted -
sealed to keep water from getting behind it, as well as sealed and
painted on the outer surface.
Unpainted Bondo (polyester filler) pops off if it gets wet and
freezes. The old rotten wood needs to be DRY before it is applied, as
well. It does heat substantially as it cures - so don't put it on too
thich at a time.
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