What Insulation For 2x8 Ceiling

The mec may allow r 19 cathedral ceiling insulation for some house designs depending on the climatic zone.

What insulation for 2x8 ceiling.

Pipe insulation duct insulation and water heater jackets. A typical 2x4 wall will hold up to r15 if you try to cram r19 in you compress the insulation and i believe actually get less insulative value than you would have with a lower rated. I have looked into spray foam which is pricey for 330sq ft it is 3 000 and rigid board at 4 5in r 30 value is 1 500 for the space. Assuming you re using fiberglass insulation which fits our wallet and our remote setting you need thicker wall or ceiling cavities to fit more insulation.

Insulates ducts that pass through cold attics. Insulate pipe wherever condensation is a problem. Get free shipping on qualified 2x8 wall insulation or buy online pick up in store today in the building materials department. Insulation radiant and vapor barriers insulating 2x8 floor on 16 centers from what i m reading hamilton county tennessee only requires r19 for the floor but i can achieve r25 with 2x8 s.

Fitting in a 10 inch batt r 30 and still providing ventilation is impossible with a 2x6 or 2x8 rafter. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task. Hey i need to put r 30 insulation in a ceiling framed with 2x8 s regular fiberglass insulation requires 9 of space 2x10 framing. If the shock of stepping out of a nice warm bed onto a chilled floor has you sleeping in thermal socks insulating your floor might help.

Around objects that store or distribute hot water and indoor air.