R 38 Hp Attic Option B

Insulation below the roof deck sheathing between framing.

R 38 hp attic option b.

Install below roof deck insulation at rafter zones 4 and 8 16 as follows. 8 bags r 19 kraft faced fiberglass insulation roll 23 in. Owens corning blown in insulation is a diy friendly option best for adding insulation in an attic and can be installed on top of existing insulation in less than 1 5 hours shop precut 2x6 wall floor insulation for faster installation. Option b is likely to appear counter intuitive as mentioned in the building science commentary hpa a above.

Batts are pre cut for use in standard 8 ft walls with 16 in on center stud spacing. For use in wood framed attics and ceilings. 12 rolls r 38 kraft faced fiberglass insulation batt 24 in. High density batts for a 2 by 6 inch 51 by 152 mm frame wall offer r 21 and high density batts for an 8 5 inch 216 mm spaces yield about an r 30 value.

R 13 rigid with air space above batt insulation or r 18 with no air space above. A medium density batt offers r 13 for the same space. R 38 batts for 12 inch 304 mm spaces are also available. The process is to construct a standard vented attic with an additional layer of insulation he underside of roon t of deck sheathing to reduce.

R values like r 38 are used by the construction industry to describe the thermal resistance of insulation materials like those used to insulate your attic when you are looking at an r 38 insulation you are actually reading a description of its resistance rather than size or thickness of the material. R 38 ecotouch pink kraft faced fiberglass insulation batt 16 in. R 38c ecotouch thermal batt insulation is designed to eliminate r value loss caused by compressing standard r 38 products in 2x12 cathedral ceiling construction. R 38 ecotouch pink fiberglas insulation with purefiber technology is the preferred owens corning insulation by homeowners because of amazing sustainability.

Johns manville r 38 42 66 sq ft faced fiberglass batt insulation 16 in w x 48 in l item 110450 model k1244. Ducts and air handler may be located in the attic install attic radiant barrier zones 2 3 5 7 r 38 insulation at ceiling r 30 in zones 3 5 7 install below roof deck insulation at rafter zones 4 8 16 r 13 with air space above insulation r 18 with no space. 10 thick r 38c ecotouch thermal batt insulation prevents moisture damage and help assure long roof life by providing 1 of ventilation air space between the insulation. Install r 38 insulation at ceiling r 30 in zones 3 and 5 thru 7 plus.

Facing provides built in vapor retarder for moisture control.