I'm in a realtively high temp climate, 90 days of 90+ degree weather last year, with a short winter with nightly temps falling into the 20s.
I've been clobbered on both extremes of the season's heating costs/cooling cots, and Im exploring alternative upgrades to increase my home R values.
My attic spaces are currently, we'll vented w/ temp controlled exhaust fans, and R30 blown fiberglass.
In my weather climate, would I be better off installing a Perorrated Radiant barrier over my existing R30 blown Fiberglass, blowing enough Cellulose over to upgrade to R45/60?
Installing a Radiant Barrier across the roof rafters could also be a future project...
Appreciate anyone clearing up my Qs or assumption mistakes!
Read our site as it has many references to the benefits of radiant barriers. You would be much better off to add the radiant barrier to the roof rafters as your FIRST project !
I'm in a realtively high temp climate, 90 days of 90+ degree weather last year, with a short winter with nightly temps falling into the 20s.
I've been clobbered on both extremes of the season's heating costs/cooling cots, and Im exploring alternative upgrades to increase my home R values.
My attic spaces are currently, we'll vented w/ temp controlled exhaust fans, and R30 blown fiberglass.
In my weather climate, would I be better off installing a Perorrated Radiant barrier over my existing R30 blown Fiberglass, blowing enough Cellulose over to upgrade to R45/60?
Installing a Radiant Barrier across the roof rafters could also be a future project...
Appreciate anyone clearing up my Qs or assumption mistakes!
George
i recommend spray foam the rafters of your attic
Posts: 4 | Location: louisiana | Registered: 15 March 2008
Best NOT to put radiant barrier over fiberglass, best to attach it to roof rafters with an airspace. you want true reflective benefit of it. wont get it on floor with dust. can prevent up to 97% of radiant heat from entering building. www.greeninsulationproducts.com
