INSULATING SHIM GAP AROUND WINDOWS AND DOORS
This is a topic I have been trying to get to the bottom of for some time.
What is the best approach to insulating the shimming gap around doors and windows?
For ages we spray foamed and called it good. Now we have building science experts like building science fight club (christine williamson I think her name is?) suggesting that leaving this cavity uninsulated is far more beneficial from a water management and building longevity standpoint than insulating for a minimal r value but potentially impeding waterflow if there was a breach in the flashing system.
So I am left astray-wondering to insulate or not to insulate, and if so, what is the preffered product, material, method.
This is all given that the back edge of the window would be air-sealed to the RO wether it had insulation in the cavity or not.
Any advice would be appreciated!
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