My house was built in the Late 1940 - early 1950's, it is a farm buglalow with an addition in 1973, a poured concrete basement and concrete block foundation addition. The basement is not insulated, the roof has very little insulation with vermiculite ( been tested ok) in the attic. I wanted to find out where to start, eg. should I seal the house, then insulate the outside basement wall, to the roof, then re-side the house, and insulate roof. Or insulate inside basement walls, and insulate the roof. What is the best product to proceed with?
Should vermiculite be removed of put Rockwool over? Or another product?