package of aluminum foil contains 50ft^2 of foil weight 8 ozthe density2.70g/cm^3what's the thickness of the foil?
It varies based on the temperatureDid you have it in the oven or the freezer? Don't put it in the microwaveVolume Area x Thickness Density Mass / Volume .Therefore Thickness Mass / (Density x Area)
Purchase some styrene insulation chutesThey are made from egg carton like styrofoam and come in sizes for 24 spacing and 16 spacingPut them end to end right up against the roof deckingThen install the ESP sheets, then the fiberglass batts.Don't forget the sides of the stairwall walls if they are not insulatedWhile the framing is exposed I would add a ceiling light smoke detector if not already thereGood Luck !
