R49 Roof Insulation Thickness

Below is sheet rock ceiling.

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. Knauf insulation r 49 ecobatt kraft faced fiberglass insulation batt 24 in. 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. Is proud to present.

Although these can be used separately along with other types of construction. I will use about 280 batts. Will this be too heavy for the tiles and the whole grid. However it is available in pre cut lengths for easy and quick.

What is the weight of each batt johns manville r49 kraft faced fiberglass insulation batt 24in x 48in x 13 5in. Corbond is closed cell and you would need 7 8 of it to get r49. Where the irc 2009 recommendations for cold climate attic roof insulation have been adopted r49 is the minimum. An integrated structural panelized building system comprised of exterior interior roof and floor panels.

Kraft faced insulation has a vapor retarder that helps to control moisture. What is your recommendation on the type and thickness of rigid insulation able the slab. We have to provide r49 to a commercial flat roof. R49 building systems inc.

Max net coverage per bag. I want to place one insulation batt on each of my dropped ceiling tiles also 24in x 48in. Min weight sq ft. As noted above there are lots of higher r value per inch alternatives to fiberglass.

Get free shipping on qualified r49 fiberglass insulation or buy online pick up in store today in the building materials department. Fg is generally less than r4 and probably won t qualify especially batts. Product thickness in 13 5 in 3 13 75 in 3 14 in 1 eco options category. 5 5 r 35 7 5 r 47 effective 4 in 1 structure insulation.

Owens corning pink insulation is soft to the touch and easy to install. 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. Bags 1000 sq ft. The roof structure is 5 thick overall composite concrete slab over steel deck 3 supported by steel beams.