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Old 01-24-21, 11:31 AM   #1
Apprentice EcoRenovator
Join Date: Mar 2011
Location: SE Wisconin
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Default Whatís your Attic Temp? (Trying to decide on going from R19 to R49)

Winter here in Wisconsin and my attic temp is measuring 15*F above outdoor temp on average with no snow on the roof, and now with some snow last night Iím seeing 20*F above outdoor.

Iíve got R19 fiberglass batt parallel with trusses now. Trying to decide if Iíll see the payback on bringing it up to the code R49 for my area.

15-20* above outdoor means my attic is above freezing which means melting and ice dams in gutters. If adding insulation brings attic temp below freezing itís a win win energy savings and no ice.

Anyone else measure attic temp or have experience with this sort of improvement?

Last edited by MetroMPG; 02-26-21 at 07:36 AM.. Reason: (added info to title)
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