Super Insulated Roof

In this energy smart details article fhb senior editor martin holladay describes the best way to approach building an unvented super insulated roof.

Super insulated roof.

There are three methods for insulating the top side of the building envelope box. Super insulate the building envelope step 5. Your plan violates the 2006 irc section r806 4 which requires the use of air impermeable insulation when the insulation is applied directly to the underside of the roof sheathing. There is no universally agreed definition of superinsulation but superinsulated buildings typically include.

This stuff needs to be invisible or it will not happen. Can t tell this roof is a super insulated over roof which was the whole point. Ample vertical space about 22 inches is ideal exists under most roof slopes to achieve r 60 insulation. Details to ensure insulation continuity where walls meet roofs foundations and other walls.

In older buildings the usual method is to install fiberglass batts or cellulose on top of the leaky ceiling with a gap of a few inches or sometimes a few feet between the top of the insulation and the roof sheathing. Icynene super insulated roof system. Heat losses through the wall roof and floor together amount to over 45 of all the heat a typical house loses. Blow insulation onto a flat ceiling.

It s been around for years. In the summer heat entering through the roof and walls in particular account for one fourth of your cooling needs. Find yourself an architect who gets it and helps make it invisible. Because my husband is a frugal man and conscious of heating cooling costs plus very interested in energy efficiency we are making a super insulated home.

Very high levels of insulation typically r 40 rsi 7 walls and r 60 rsi 10 6 roof corresponding to si u values of 0 15 and 0 1 w m k respectively. Skip navigation sign in. This is not just to match the overhang on the front. There are lots of ways to insulate a low slope roof and most of them are wrong.

Updated on april 8 2016. Frugal living at its best. Why a super insulated cabin roof. Holladay says that one of the best ways to insulated any roof is with rigid foam on top of the roof sheathing.

Icynene super insulated roof system. Highly insulated ceiling or roof. Insulation is your primary defense against heat loss through the house envelope. However there is one tight.

Yes even in our mild east tennessee climate we wish to maximize our heating and cooling and minimize the losses.