Roofing tiles made of felt like materials overlaid with asphalt and tar will hold heat and even transfer it downward into a structure while other types of roofing will reflect light and heat upward and away from a building instead.
Lightweight roofing systems reducing energy heat transfer.
Metal roofing can be made from copper zinc and steel as well as various alloys and comes in a variety of finishes colors and designs.
Energy efficient roofing using thermally efficient roofing materials like colorbond steel can help you reduce your cooling costs.
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In summer a lightweight insulated roof made from colorbond steel causes less heat to be radiated into your home at night.
As an integral component of eagle s ventilated roof system our arched battens help decrease heat transfer from the attic into the living space below resulting in enhanced energy efficiency by dissipating heat reducing the stress on the hvac system and keeping the structure cooler in hot weather.
But the most notable advantage is recognized in the use phase of the product.
Insulating materials are bad conductors and so this reduces the heat loss by conduction.
The material also prevents air circulating inside the cavity therefore reducing heat loss by convection.
That s because steel has a low thermal mass so it cools down fast once the sun is off it.
Even better most types of metal roofing are heat reflective and meet energy star efficiency requirements making them a great option for the las vegas desert climate.
Determination of transient two dimensional heat transfer in ventilated lightweight low sloped roof using fourier series.
It looks a little like you painted the underside of the roof deck with.
The material is particularly effective at heat reduction when it s coated with titanium dioxide which gives the epdm a lighter color.
However homeowners should be careful when using these kinds of cool roof techniques to reduce energy consumption.
In fact a study performed by oak ridge national laboratory showed a 48 percent reduction in heat transfer into the attic with tile roofs installed using an above sheathing ventilation system like the ventilated roof system when compared to a direct nailed asphalt shingle roof.
Traditional shingle roofing materials hold and transfer heat in a similar way.
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This color reflects light and heat from the roof surface back into the atmosphere.