What is the big difference between R30 and R38 Attic Insulation?
Question:I am looking to purchase a new house and they have R38 as an upgrade. I want to know if this is well worth it. By the way I am in Arizona.
Answers:
the idea behind 'insulation' is to reduce the loss of cool / warm air from escaping an enclosure... some folks think insulation is meant to keep outsidee temps outsid...but it don't work like that.
Installers will explain the principals of temperature control inside an enclosure..what steps are needed to get the highest effective means of containment , with the least loss to escapage or drafts.
Attics are a homes most compromised area for insulation... and the easiest to rectify or fix... R38 is good to excellent for most of the country... ask your local builders supply what the recommended rate for your locality is...they will tell you precisely.
The R38 has a higher insulation value than R30. This is particularly helpful in Arizona because it will reduce your overall cooling costs by reducing the level of heat from the sun being absorb by the house. This is a good thing.
R-8
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