An r 38 fiberglass batt should be approximately 12 inches thick while the thickness of cellulose insulation of a finished fitted product will larger.
R38 rigid roof insulation thickness.
With a minimum of 70 recycled content the installed thermafiber products contributed to valuable leed credits helping the building earn a leed platinum certification.
We re proud to say our products can be found in some of the tallest and safest buildings around the globe like salesforce tower.
Achieving greater r values in attics the higher the r value the better the thermal performance of the insulation.
Get free shipping on qualified r38 fiberglass insulation or buy online pick up in store today in the building materials.
The fiberglass comes in rolls also known as batts which vary in size.
Johns manville is committed to providing the high quality products resources guidance and on demand support you need on the job.
In q4 2013 jm will modify its packaging to reflect lttr values by both test methods.
1 when joints penetrations detailed appropriately.
4 r38 to r60 r38 r25 to r 30.
Product thickness in 10 25 in 2 10 25 2 12 in 8 eco options category.
The information on this page is based on data considered to be true and accurate based on periodic internal.
Johns manville s residential insulation products help maintain energy efficiency and lower heating and cooling costs making homes more comfortable year round.
Case study salesforce tower.
Owens corning insulation products help improve thermal performance and control moisture in commercial institutional and.
The thickness of your r 38 insulation will depend on the material you have the brand and how it s installed.
Insulation is designed to eliminate r value loss caused by compressing standard r 38 products in 2x12 cathedral ceiling construction.
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.
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.
See also material data sheet msds 1511 or msds 1911.
As an example a 1 board label will include information from lttr s770 03.
Jm sheathing r values will not change.
Find your zone on the map and then use the chart to determine the level of insulation you need to properly insulate your attic walls floors and crawlspaces.
8 bags model k91 view the.
Existing 3 4 inches of insulation uninsulated floor uninsulated wood frame wall insulated wood frame wall 1 r30 to r49 r25 to r30 r13 n a 2 r30 to r60 r25 to r38 r13 to r19.
Owens corning r 38 ecotouch pink cathedral ceiling kraft faced fiberglass insulation batt 23 3 4 in.
Add r5 insulative wall sheathing before installing the new siding.
