Walls and Roofs
The easiest way to insulate walls from the exterior in older homes
Fitting extra insulation to an older home when renovating can be a great idea, but when insulating exterior walls from the outside take care to do it right. Ec…
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Insulating the exterior walls of older homes has to be done carefully so you don’t trap moisture.
I would recommend you use some sort of mineral wool / rock wool insulation as they aren’t harmed by moisture and it will pass right through it. Walls need to be able to dry, so anytime you are adding to a wall its best to make sure that you only use products that are vapor permeable. Here is our page on Choosing the best rigid insulation,
you may also want to check out this page about choosing the right weather barrier
and How to install siding so walls can dry.