What R-value of insulation do I need?

What R-value of insulation do I need?

Depending on where you live and the part of your home you’re insulating (walls, crawlspace, attic, etc.), you’ll need a different R-Value. Typical recommendations for exterior walls are R-13 to R-23, while R-30, R-38 and R-49 are common for ceilings and attic spaces.

What is the best R rating for attic insulation?

The higher the R-Value, the better the thermal performance of the insulation. The recommended level for most attics is to insulate to R-38 or about 10 to 14 inches, depending on insulation type.

What type of ceiling insulation is best?

Fiberglass, cotton, and mineral wool can all work as loose-fill material, but the far and away top choice for blown-in insulation is fiberglass. Contrary to batts, blown-in fiberglass insulation is perfect for filling in tight voids around wiring, pipes, or any area with awkward framing.

What is best insulation for ceiling?

  • BEST OVERALL: Owens Corning R-38 Kraft Faced Fiberglass Insulation.
  • BEST BANG FOR THE BUCK: Frost King CF1 “No Itch” Natural Cotton Insulation.
  • BEST BLANKET: Owens Corning R-30 EcoTouch Fiberglass Insulation.
  • BEST SPRAY FOAM: FROTH-PAK 620 Sealant – 2 Component Foam Insulation.

What do you need to know about BREEAM insulation?

At least 80% by volume of the thermal insulation used in the building elements identified in Item 1 must be responsibly sourced i.e. each insulation product must be certified in accordance with either tier levels 1, 2, 3, 4, 5 or 6 as described in BREEAM issue Mat 03.

When to use BREEAM mat 04 rating criterion 4?

Element consisting of more than one insulation type See criterion 4 Where more than one insulation type is present for a given element, the rating, area and conductivity for each insulation type should be entered into the BREEAM Mat 04 calculator and an average is calculated (by volume). CN5  Finding exact Green Guide Ratings See criterion 2

Do you need a Green Guide rating for insulation?

The Green Guide rating and element number/bespoke green guide rating for the assessed insulation specifications. In this instance it would not be necessary to provide the volumes and thermal conductivities of each insulation type; however, you must be satisfied that all relevant insulation has been accounted for within the assessed building.

What do you need to know about BREEAM measurement?

Insulation Index. A measure of performance used in BREEAM that seeks to assess the thermal properties of insulation products used in the building relevant to the embodied impact of that insulating material.

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