Rigid Insulation Above Roof Deck

Remove existing roofing and non adhered underlayment to expose roof sheathing.

Rigid insulation above roof deck.

The r value is a measurement of the heat loss and heat gain. With a minimum of 70 recycled content the installed thermafiber products contributed to valuable leed credits helping the building earn a leed platinum certification. Case study salesforce tower. They had to look original.

For most of us in the low slope roofing industry it s considered to be absolutely standard to have insulation placed above the roof deck. Rmax operating llc rmax nailable base 3 insulation for above the deck description. The 6 inches of rigid insulation added to the top of the existing roof deck needed to be done in a manner that was invisible. I would use polyiso with a top layer of eps as recommended in your blog post on the topic.

The dew point is typically within the insulation layer lowering condensation risks. For standard steel deck construction this approach has many advantages such as. Install insulating sheathing above the roof deck on existing homes. This retrofit assembly is appropriate for homes with conditioned attics or where the retrofit is intended to create a conditioned attic.

Depending on the type of insulation you choose and the desired r value you want for your facility you may need to build up a few layers of insulation. Rigid foam installation after the roof deck is ready the rigid foam insulation is installed. It is an acceptable practice to install a new roof over an existing roof membrane system provided that the roof deck is structurally sound and has been properly prepared to support the added load. Placing a layer of fluffy insulation below the roof deck would needlessly complicate the.

I m considering a roof design that would place all the insulation above the roof deck with no insulation below. We re proud to say our products can be found in some of the tallest and safest buildings around the globe like salesforce tower. Nailable base 3 an all in one roof insulation and nailing surface has a 7 16 thick osb nailing panel bonded to a polyiso foam board with glass fiber organic mat facers. The trim the frieze boards the fascia and the overhangs all had to look like they belonged.