Insulated Flat Roof Decking

State applicable energy ashrae zone minimum r value state local ms mississippi ashrae 90 1 2010 2 r 20 3 r 20 state local mo missouri 2012 iecc 4 r 25 5 r 25 state only mt montana 2012 iecc 6 r 30.

Insulated flat roof decking.

If you want ventilation channels between the top of the insulation layer and the underside of the upper layer of plywood roof sheathing an unnecessary step in most cases but useful in some climates to reduce the chance of ice dams a problem that does not generally affect standing seam roofs the usual method would be to create a ventilation channel by installing 2x4s on the flat 16 inches or 24 inches on center from soffit to ridge in other words the 2x4s are perpendicular to the. Polystyrene core insulated roof panels great for homes cottages rvs and trailers. Awip s onedek roof panel is a star at ire nashville nashville tenn. A properly constructed epdm roof should last 40 or more years.

Versatile high quality and ready to assemble aluminum patio cover kits for the handy diy homeowner interested in a clean professional looking finished product at a fraction of the cost from a contractor. Featuring integrated moisture air and thermal protection zip system r sheathing completely reimagines traditional wall assemblies by streamlining exterior water air and thermal management. And then install 1 2 minimum recommended is 5 8 or thicker plywood on top of battens. Run vertical 2 3 boards battens over roof sheething 16 o c.

Minimum insulation r value requirements non residential above roof deck. A strong resilient roof is a home s first line of defense when the roof deck is exposed to weather. Zip system r sheathing is the simple all in one structural panel with built in exterior insulation. Zip system roof assembly combines our revolutionary integrated sheathing and flashing tape or liquid flashing to provide a sealed roof for protection against moisture intrusion during construction or if high winds strip the roof covering away.

It s best to build the wooden deck in removable sections for cleaning and maintenance of the rubber roof and repair of the membrane if ever needed. 11 to strong interest in onedek the company s new roof deck system for low slope flat buildings. These walkable covers offer years of maintenance free protection and guaranteed never rust warp crack or. 1 get insulated panels with osb board attached to iso insulation you will then screw this over current roof deck.

Rooftop decking attaches to treated wood sleepers separated from the roofing by strips of epdm. But spray foam insulation used at the underside of the roof deck would need to be covered by a thermal barrier and intumescent coatings are commonly used. For such constructions the principles and benefits of unvented attic construction are similar to that occurring in a single family residence.