R 38 Rigid Roof Insulation Thickness

1 when joints penetrations detailed appropriately.

R 38 rigid roof insulation thickness. The information on this page is based on data considered to be true and accurate based on periodic internal. 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 and roof deck. Owens corning r 38 ecotouch pink cathedral ceiling kraft faced fiberglass insulation batt 23 3 4 in. Owens corning foamular 250 extruded polystyrene xps rigid foam insulation is a closed cell highly moisture resistant rigid foam board well suited to meet the needs for a wide variety of residential and commercial construction applications.

Jm s wall sheathing line ap foil and ci max are not governed by lttr test methods and have different r value measurement standards. Excellent lttr value compared to any other fm class 1 rated products of equivalent thickness. In q4 2013 jm will modify its packaging to reflect lttr values by both test methods. 2 stated thermal resistance values are based upon conditioning requirements and test methodology found in astm c1289 and astm c518 for foil faced polyisocyanurate insulation.

Johns manville r panel rigid roof insulation board offers r values of up to r 23 6 providing high thermal efficiency. Standard r 38 products in 2x12 cathedral ceiling construction. Easy installation r 38c ecotouch thermal batt insulation is easy to handle and install. 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.

Owens corning insulation products help improve thermal performance and control moisture in commercial institutional and. R panel is manufactured with a closed cell polyisocyanurate foam core bonded to fiberglass reinforced facers and designed for use over metal nailable and non nailable roof decks with a variety of membrane systems. 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. Benefits of energyguard polyiso roof insulation include.

Jm sheathing r values will not change. 8 bags model k91 view the owens corning attic insulation.