You can ask your building dept for your specifics, but you can go to any fiberglass manufacturers website's to get the regional recommendations.what R -value insulation is exceptable Baltimore, M.D.
For Walls, ceiling, & 2 bedrooms in attic?.
By code or recommended?
The house is a very old one
& I will use thee cheapest type of insulation I can find.
What would you recommend.
thank you.