Standing Seam Metal Roof R Value

Sri measures the roof s ability to reject solar heat defined such that a standard black reflectance 0 05 emittance 0 90 is 0 and a standard white reflectance 0 80 emittance 0 90 is 100.

Standing seam metal roof r value.

Higher cost one of the most significant drawbacks to standing seam metal roofing is the fact that is can be more expensive when compared to other metal roofing types especially exposed fastener systems. Colonial seam continuous standing seam metal roof panel with an integral seam. You should of course see the manufacturer provided technical data sheet for the r value of specific products. Contemporary metal roofing has a 50 year rated.

R value of various materials. Incorporates both solar reflectance and thermal emissivity in a single value. The cfr panel is attached to a building structure with concealed clips to provide continuous insulation and eliminate thermal bridges providing unsurpassed weathertight performance. Lttr is a 15 year time weighted method based on customer s insulation needs.

Standing seam systems. Clipless one piece positive locking standing seam panel that provides a timeless roof appearance. The use of berridge manufacturing metal. Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials.

The per square foot cost of a premium metal roof is 9 58 with a comparable asphalt shingled roof s march 2012 per square foot cost being 3 41. The interior profile is also a stucco embossed mesa pattern. The cfr exterior profile has a 2 inch high standing seam with a mesa profile. 18 roofing standing seam on insulated metal faced panels skin must provide a minimum pull out value of 50kn for the standing seam fixing clip dynamic testing method.

Available values range from 5 6 to 27 3. Thermal performance is measured using derivative of the r value known as the long term thermal resistance lttr method.