Thermal Effeciency Metal Roof Or Asphalt

A white or light colored metal surface reflects best under testing at about 67 percent reflectivity and even some newly developed cool colors send the rays away source.

Thermal effeciency metal roof or asphalt.

Due to metal roofing s incredibly efficient solar reflectance and thermal emittance metal is the ideal roofing material for the construction of a net zero energy home. Most asphalt based roofing products already have a thermal emittance of at least 80 and most metal roofing products are coated to come close to that level. Fiberglass core or matting an asphalt coating and a ceramic or stone granule surface give this material its durability. They are available in a variety of colors and textures are low cost and provide a traditional aesthetic.

Metal roofing the good. Modern energy efficient metal roofing acts as a giant mirror of sorts by reflecting the heat and energy up into the air. A higher thermal emittance allows a roofing product to radiate any heat it has absorbed and not allow it to be absorbed into the building it is covering. This coating paints onto various materials like asphalt gravel metal and more.

If you have a low sloped roof you can apply cool coating or single ply membrane to reduce cooling demands. Metal roofs protect their insulation backup better which ensures strong long term thermal resistance. Depending on the quality and type of asphalt shingles you choose expect to pay between 3 00 to 7 00 per square foot including installation. For 2016 you can earn a 500 tax credit for installing a cool metal roof to your primary residence.

If you ve noticed your asphalt roof curling or deteriorating it s time for a roof replacement. With a little care and upkeep a metal roof is a long lasting energy efficient roof that can add a great look to your home. Metal is an energy efficient roofing option that is a good choice for many budgets and typically quick to install. Metal roofing is also passive house ready in several key areas.

It s a cost efficient treatment perhaps the most inexpensive of all green options. Metal roofs don t have to be steel or aluminum colored nor do they need to look like corrugated tin. Asphalt shingles are the most popular roofing material. Metal roofing has become increasingly popular over recent years.

Energy star metal roofing comes in two main styles metal panels and metal tile. Decra villa tile direct to deck installations with a radiant barrier underlayment have an r value of 4 64 with a 103 5 improvement versus an asphalt shingle roof and 77 8 versus decra villa tile with 15 lb. Decra metal roofs are highly efficient at releasing absorbed heat unlike asphalt shingle roofs which continue to radiate heat down into the home long after the sun goes down.