Which is the best exterior insulation board that's not oil based to make a cottage 3 season?
Hello, our house built in 1920 untouched save for a simple kitchen. It's walls are toung and groove pine. No heat no insulation just the wainscotting walls. The interior frame ar 2 by 4's. we wish to live there through the summer from May 1st to October 8th ish. We have to install heat and insulation for the times when we return in winter, for Christmas and birthdays etc. We'd like to strengthen the structure internally but we want to keep the wood exposed. We are thinking to insulated the house with external insulation and then add new wooden siding. We would like to use a non oil based insulation. Can you recommend a product?