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www.doityourself.com/stry/how-thick-is-r-38-insulation

The thickness of your R-38 insulation will depend on the material you have, the brand, and how it's installed. The fiberglass comes in rolls, also known as batts, which vary in size. An R-38 fiberglass batt should be approximately 6 1/4 inches thick, while the thickness of cellulose insulation of a finished, fitted product will be around 12 inches.

www2.owenscorning.com/literature/pdfs/[02] FOAMULAR XPS Roof Insulation for Commercial...

FOAMULAR® XPS ROOF INSULATION FOR COMMERCIAL BUILDINGS PAGE 5 FOAMULAR® XPS ROOF INSULATION FOR COMMERCIAL BUILDINGS FOAMULAR ® XPS insulation is a rigid foam insulation which meets the needs of today’s design professionals for a truly sustainable insulation product. Owens Corning™ insulation products help improve thermal performance and control moisture in commercial, institutional and ...

www.jm.com/content/dam/jm/global/en/commercial-roofing/brochures/RS-5131_2014...

JM POLYISOCYANURATE ROOFING PRODUCT LINE ... Rigid Polyisocyanurate Thermal Insulation Board). As part of that standard, the products must meet R-value requirements presented as Long-Term Thermal Resistance (LTTR). As foam ages over time, air and blowing agents diffuse in and out of the

www.homedepot.com/p/Owens-Corning-R-38-EcoTouch-PINK-Kraft-Faced-Fiberglass...

Visit The Home Depot to buy Owens Corning 12 in. x 16 in. x 48 in. R38 Kraft Batts in Bags Insulation BF80. ... I haved use the same R-38 in my roof when I built my home over 23 years ago and the R-13 in my walls both were from Owens Corning Pink. Date published: 2019-04-18.

www.roofcalc.org/flat-roof-insulation-cost

The average cost of flat roof insulation is $0.67 per square foot (for 1 inch thick PolyISO with 6-R value). High quality rigid foam insulation that is properly installed will greatly improve ventilation, eliminate drastic temperature fluctuations inside the home, and protect from leaks. Here are the best insulation materials along with prices, features, and r values.

www.gaf.com/en-us/products/energyguard-polylso-roof-insulation

Benefits of EnergyGuard™ Polyiso Roof Insulation include: Excellent “LTTR” value compared to any other FM Class 1 rated products of equivalent thickness. FM approved, subject to the conditions of approval as a roof insulation when installed as shown in the current edition of the Factory Mutual Research Approvals Guide.

www2.owenscorning.com/literature/pdfs/21151-D EcoTouch R-38C (for 2x12 Cathedral...

insulation is designed to eliminate R-value loss caused by compressing standard R-38 products in 2x12 cathedral ceiling construction. 10¼ ” 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 and roof deck. Easy Installation

www.thebuildingcodeforum.com/.../roof-rigid-foam-insulation-thickness.14690

I'm designing a house with a cathedral ceiling with exposed structural beams, with structural decking above, and then rigid foam insulation above the decking. Per the 2012 Virginia Residential Code Table N1102.1.1 I know that I need to have R-38 roof insulation. Where do I find out how thick my rigid insulation needs to be to reach that R value?

insulation.owenscorning.com/_templates/products/details.aspx?product=r-38-fiberglas...

Homeowners find EcoTouch® PINK® FIBERGLAS™ Insulation with PureFiber® Technology fast and easy to install. In addition, EcoTouch® insulation: Delivers comfort – helps homes stay cooler in the summer and warmer in the winter; Will reduce monthly heating and cooling costs 1 for the life of the home

www.wisegeek.com/what-is-rigid-insulation.htm

Rigid insulation is a building material used to provide thermal resistance to walls, foundations, and roofs. It is available in formed or extruded sheets of varying sizes, which are made from polystyrene or polyurethane.This material helps to improve the energy efficiency of a home by keeping cold or hot air from penetrating the walls.