The lath and plaster is flush with the window rough opening.
Insulating window weight pockets when installing replacement windows.
Stack strips to completely fill the void.
There are two main types of insulation are used when insulating around replacement window.
These open pockets are cold air collectors.
If you remove the inside jamb to expose the pockets and install a wider window this isn t a problem.
Remove these screws and you will be able to access the weight pockets.
Apply insulating foam sealant between window and rough opening.
Even if a house has been insulated with pour in pump in or foam insulation the weight pockets are left open for the weights to operate.
When the old window is removed this will reveal a piece of the jamb that is held in by 2 screws.
This house is a 1917 single brick veneer exterior lath and plaster interior the wall is i believe open from attic to basement.
How to install window replacement duration.
2 cut a strip of foil faced rigid foam insulation to fit snugly into the space between the side jamb and plaster or drywall.
1 use hammer and pry bar to remove the molding from around the window.
Insulating behind the rough opening.
I ve had some difficulty with doing my first solo window replacement re.
In this video this old house general contractor tom silva explains how to insulate a window with sash weights.
Now that i have begun the process of removing the trim i am finding it to be perhaps more work than it is worth.
Best way to insulate around a replacement window last week a visitor to my site asked me about the best way to insulate around a replacement window.
Caulk gap on sides and top.
I discovered that there were sash weight pockets behind the ro.
After some searching online i found the best practice to be removing the trim and insulating the weight pockets with tuff r rigid foam insulation.
Cut strips of foil faced rigid foam insulation to fit into the weight pockets.
Do not drill any holes.
Remove the weight and insulate through the pocket.
A few days later i got the same question so i decided to compile my response into an article below.
Minimal expansion foam probably won t work for this area.
Use foil tape to seal the joint between the window jamb and foam insulation.
Easily insulate the pockets of your old windows when replacement windows have been installed.
Shim four corners and check window for plumb.