I have a contractor going to put vinyl siding on my home,my house was built in 1946 and may have "some insulation "in the walls i am not sure.The contractor told me when he builds my addition (a 20by20)room that he will wrap my house in something he called "tivex",
Is there such thing? if so should there be something else other then just that on my exterior walls?
it just seems to me there should be!
Thank you for your time.