R49 Roof Insulation Thickness

You d have to decide how you feel about foam applied to the roof deck and make sure your inspector will accept an unvented roof assembly.

R49 roof insulation thickness.

If there s still not enough room you can always add a layer of foam board or closed cell spray foam to the top of the roof topped by sheathing or other protective layers. Knauf insulation r 49 ecobatt kraft faced fiberglass insulation batt 24 in. Max net coverage per bag. Min weight sq ft.

Product thickness in 13 5 in 3 13 75 in 3 14 in 1 eco options category. Bags 1000 sq ft. I want to place one insulation batt on each of my dropped ceiling tiles also 24in x 48in. Will this be too heavy for the tiles and the whole grid.

As noted above there are lots of higher r value per inch alternatives to fiberglass. Where the irc 2009 recommendations for cold climate attic roof insulation have been adopted r49 is the minimum. Kraft faced insulation has a vapor retarder that helps to control moisture. What is the weight of each batt johns manville r49 kraft faced fiberglass insulation batt 24in x 48in x 13 5in.

Below is sheet rock ceiling. R49 building systems inc. Fg is generally less than r4 and probably won t qualify especially batts. Owens corning pink insulation is soft to the touch and easy to install.

The roof structure is 5 thick overall composite concrete slab over steel deck 3 supported by steel beams. We have to provide r49 to a commercial flat roof. Get free shipping on qualified r49 fiberglass insulation or buy online pick up in store today in the building materials department. What is your recommendation on the type and thickness of rigid insulation able the slab.

Benefits of insulation on average you can save up to 20 on your home s heating and cooling costs or up to 10 on its total energy costs by adding insulation to attics floors crawl spaces and accessible basement rim joists and by reducing unwanted air leaks all around your house. 5 5 r 35 7 5 r 47 effective 4 in 1 structure insulation. Uses the owens corning paperfaced r49 is a flexible fiberglass insulation proposed to control moisture in concealed applications in between the studs and joists. An integrated structural panelized building system comprised of exterior interior roof and floor panels.

With a paper facing on one side of the insulation the r 49 paperface batt insulation is smooth and flexible and can be easily cut for installation. Corbond is closed cell and you would need 7 8 of it to get r49. Is proud to present. Although these can be used separately along with other types of construction.