R Value Of Clay Roof Tiles

The cost of clay tiles can easily be 10 20 per square foot installed.

R value of clay roof tiles.

R value of various materials. The following table is in metric form. 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. When you read those the difference in price will come as no surprise to you.

Roof tiles have a service life of 150 years. The clay tiles all jumped from r. They are insensitive to environmental influences such as heat cold and frost. Stud walls see either airspace wall or insulation.

Thermal break foam strips gasket 10mm thick uncompressed. Depending on your region and the product you choose expect to pay between 12 50 and 25 00 per square foot for a ceramic clay tile roof installed. Forashrae zone 3 atlanta georgia the high profile concrete and clay tiles espana barcelona 900 corona tapered classic s and mission s all showed an almost tripling of the effective annual thermal resistance with the addition of the low emittance paint. Roof tiles are solid and thus especially robust and dimensionally stable.

Sand dry 100mm. These numbers are most useful to compare one insulating material to another. There are many websites on the internet which have imperial building material r value numbers but not so many with metric r value numbers. Count on a tile roof to cost two times as much as a wood shake roof and four times more than asphalt shingles.

Here s a handy r value table that covers most types of roof coverings building insulation and a few other materials. Structural tile r value an 8 thick double cell hollow clay tile has an r value of 1 85 according to my ancient hvac text book. This is important for assessing the risk of mold in some materials. However the material has a lot of different advantages which is why it s still the preferred material between the two.

For a very good introductory overview article on r value see r values over at the website of. Flame spread is a measure of fire resistance of the material. Sand moist 100mm. Concrete clay roof tiles.

Absorption is the tendency of the insulation to absorb water in percent by weight. Roof tile clay or concrete 1922kg m3. R value is compressed value. Straw board faced with paper 320kg m3 50mm thick.

It is true that air is a poor conductor of heat but in a vertical air space like in a wall warm air rises on the inside surface and cool air drops on the outside surface creating convection which transfers heat.