Insulation, Radiant and Vapor Barriers - measuring for insulation?????

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kathie659
03-08-05, 05:26 PM
Okay dumb question - but I must be doing something wrong....

I'm getting ready to rip & replace exterior walls & will be insulating them I've measured the walls 2 are 28' long 8' high and 2 are 15' long & 8'high (86 x8) so I figure roughly 690 sq ft

A roll of insulation is 146 sq ft.

My calculations say 5 rolls of insulation will be enough to cover this area....

That doesn't seem right to me - what am I doing wrong?

Ed Imeduc
03-08-05, 05:37 PM
Working with what you said I get 5 roll also or you need 4.71 rolls. Paper to the room side and staple inside the studs when done put a 4 mil poly over it all then the drywall.


ED :D
kathie659
03-09-05, 06:28 AM
Okay - it just didn't seem that 5 rolls could be enough....thanks