2022年10月5日 · R38 insulation is required in ceilings in hotter regions and floors in colder regions. The thinnest insulation layer achieving the R38 rating is with closed cell spray foam polyurethane (5.38-7.6") and the thickest insulation layer achieving the R38 rating is with loose-fill fiberglass (15.7").

2023年9月7日 · R38 insulation has an R-value of 38, which is a measure of its thermal resistance. Using R38 insulation can reduce thermal conductivity by 97 percent. The thickness of R38 insulation ranges from 5.38 inches to 15.7 inches, with closed-cell spray foam requiring the thinnest and blown-in fiberglass requiring the thickest.

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2010年4月19日 · 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. Determining how thick R-38 insulation is will depend upon not only its R value, but also other factors such as size, use of material, and weight.

2023年10月4日 · R38 insulation typically has a thickness of approximately 10 to 12 inches when installed properly. It provides a substantial barrier against heat transfer and is ideal for attics and roofs with standard joist or rafter spacing. R49 insulation, on the other hand, is thicker, measuring around 14 to 16 inches when properly installed.

PINK Next Gen fiberglass insulation batts recover instantly, cut and split cleanly, glide in easily and stay put in the cavity, helping deliver inspection-ready results faster. They feel soft as cotton and are shed-resistant for more comfort and less cleanup on every job.

2018年2月8日 · Owens Corning PINK Next Gen Fiberglas insulation installs faster because it's made like no other fiberglass insulation. PINK Next Gen fiberglass insulation batts recover instantly, cut and split cleanly, glide in easily and stay put in the cavity, helping deliver inspection-ready results faster.

2022年4月8日 · It's low slope roof. You may need better than even 2x8 for the span. If mine, I would leave 2" space (or usual 1.5" baffles) between roof deck and insulation. As such, I would frame the ceiling joists so I have at least 14" space from eave.

2024年10月28日 · R38 insulation is specifically designed to provide enhanced thermal resistance, making it well-suited for climates with extreme hot or cold temperatures. The R38 insulation thickness refers to the amount of insulation material needed to achieve an R-value of 38.