As an example a 1 board label will include information from lttr s770 03.
R38 rigid roof insulation thickness.
There s various options for strengthening your 24 oc roof framing for the span.
Foamular extruded polystyrene xps rigid foam insulation offers foamular extruded polystyrene xps rigid foam insulation offers a comprehensive line of products choose the strength you need from 15 to 60 psi and exceptional moisture resistance.
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.
The information on this page is based on data considered to be true and accurate based on periodic internal.
In q4 2013 jm will modify its packaging to reflect lttr values by both test methods.
An r 38 fiberglass batt should be approximately 12 inches thick while the thickness of cellulose insulation of a finished fitted product will larger.
The fiberglass comes in rolls also known as batts which vary in size.
Product thickness in 10 25 in 2 10 25 2 12 in 8 eco options category.
Benefits of energyguard polyiso roof insulation include.
2 sister deeper rafters based on span.
1 add rafters at 12 oc.
1 when joints penetrations detailed appropriately.
The thickness of your r 38 insulation will depend on the material you have the brand and how it s installed.
Get free shipping on qualified r38 fiberglass insulation or buy online pick up in store today in the building materials department.
R 13 johns manville fiberglass insulation soundproofing insulation fiberglass insulation 2 inch fiberglass 12 fiberglass roofing.
Owens corning insulation products help improve thermal performance and control moisture in commercial institutional and.
The only way to stop thermal bridging is to take the roofing off add a layer of rigid insulation plus strapping or plywood and renail new roofing.
See also material data sheet msds 1511 or msds 1911.
Excellent lttr value compared to any other fm class 1 rated products of equivalent thickness.
Products provide superior insulating properties.
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.
