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Regular 10". High density which is more expensive 8"
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∙ 12y ago
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How thick is R30 insulation?
about 9 1/2 inches thick
Where can you buy R38 high density insulation that is 10 inches thick?
An R30 requires 12". You will need to look into the spray foam installation. I think it will need to be around 8 to 10" for an R38.
What is the recommended R value for roof insulation?
R 13 for 3.5" wall cavities, R19 for 5.5". R30 for blown in insulation and batts in ceilings.
Does an insulation rated R-35 allow more heat to pass through an insulator rated R-1?
An R1 would be like a window. R30 is about 12" of insulation. The insulation value applies to heat or cold.
Why has thickness requirement in loft insulation changed?
Everything is geared tward energy conservation. A R30 attic blanket is the standard. R38 is better.
How many inches of Cellulose Insulation equals r49?
R49 is equal to 13 settled inches of cellulose insulation. If the insulation has not settled yet then it should be between 15-16" deep.
How many inches of ISO insulation board is required on a flat roof?
12 inches
What is the difference in percent gain between R-19 and R-30 insulation in an attic?
57% gain. A R30 would be the same as a R19 + a R11 batt.
How many inches of fibreglass insulation to achieve R50 in roof?
16.67
How do you install blown insulation?
This is the process commercial insulators use. It involves a large truck mounted blower and as much as 200 feet of hose to shred and blow insulation into an attic area. If you are a do-it-your-selfer, you may want to consider R30 batts.
10 of fiberglass insulation provide how many R?
10 inches corresponds to about R-38.
How much does a house cost in Johannesburg?
It can range from R30 000 for a very small, cheap house, to R30 million or more.
