Roof Tile R Value

Marley roofing south africa from our trusted m22 m11 double roman roof tiles to our innovative solar tiles and eco tuff range we ve got you covered.

Roof tile r value.

With r values between 2 4 and 1 8 our radiant barrier range is sure to keep insulation and electricity bills lower. For a very good introductory overview article on r value see r values over at the website of. Additional r value for a masonry wall constructed using these materials needs to add the insulating value of additional wall components typically included such as 1 solid foam polyisocyanurate r 8 extruded polystyrene r 5 expanded polystyrene r 4 or 1 of perlite r 2 7 and for an exterior air film winter no wind r 0 17 an interior air film again no air movement r 0 68 3 4 of. Want to save on heating and ac costs.

Built by esd consultants low impact development lid consulting in melbourne australia the r value calculator is a practical tool to simplify total insulation calculations. Cost savings from tile roofs and their roi. The tiles and the air space created in their installation conspire to increase air circulation that reduces direct heat transfer from the roof to the house and eases summer air conditioning costs. Our insulation calculator enables simple calculation of total wall roof ceiling or floor system insulation r values.

Click here to go to our calculator to understand the real r value of a ceiling system or wall system with gaps in the insulation. The following table is in metric form. R value of various materials. The tractile eclipse roof tiles contain natural insulation with an r value of 0 05 while the tractile eclipse solar tile provides 7 x greater insulation than concrete tiles with an r value of 2 00.

The added r value equates to the effective annual thermal resistance for the tile roof having different combinations of surface radiation properties cool color pigments and or building constructions. You should of course see the manufacturer provided technical data sheet for the r value of specific products. A metal colorbond roof s r value is 0 00 while a concrete tile roof s r value is 0 02. Please note that the r values for roof membranes shingles tiles air films and roof deck materials might or might not be permitted by your local code to be included when total roof assembly r value is being calculated for the purpose of satisfying energy code requirements.

The higher the r value the better. Asphalt shingles have an r value of around 45 while wooden shakes or shingles carry an r value of 97 or more than double its competitor. Then you will want a higher r value in your roofing insulation and roofing materials. There are many websites on the internet which have imperial building material r value numbers but not so many with metric r value numbers.