How can I insulate exterior walls?
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Our old house has plaster walls with panelling over them but they are freezing cold in the winter which makes it difficult to stay warm. Help!!
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Outside of removing siding from exterior of house which is impractical, probably the best thing to do would be to hang a quilt or other heavy fabric cover. You could also put up foam board under that. When you say freezing do you mean your hand would literally "freeze" if you touch the walls? Or just that the walls feel chilly?
We actually removed all our walls. Added up to date wiring, water lines, gas lines etc and added insulation. New drywall. We did one room about every 6 months or as we could afford it. So glad we did.
I had blown-in insulation installed several years ago and it helped a lot. Shop around and see what type you would prefer and check the cost from several installers.
Good site with lots of info: https://www.greenbuildingadvisor.com/article/how-to-insulate-a-wall-from-the-outside
you can use foam spray that will for sure help you with that .. it is mess free