Spectrally Selective Roofing

The results under given conditions show that the rc module with a spectrally selective cover and a spectrally selective emitter sc se reaches a net rc power of 62 4 w m 2 when the solar radiation is 800 w m 2 which is about 1 8 times that of the typical rc module with a spectrally non selective cover and a spectrally selective emitter n sc.

Spectrally selective roofing.

Spectral distribution of solar radiation. Night sky cooling potential o cool night sky. Tests indi cate that the colors will sharply reduce solar heat gain through the roof. The implication is that a spectrally selective roof system which is primarily reflective in the nir and or uv portions of the spectrum will automatically compromise performance relative to a high uniform reflectance.

A window glass replacement with spectrally selective coatings is especially beneficial for homeowners living in warmer climates because they help keep the home cool without. Spectrally selective surfaces can reduce the solar absorptance for a given roof colour. A low e window glass replacement with spectrally selective coatings filter out up to 70 of the normal amount of heat while still allowing plenty of light into your home. Spectrally selective glazing is high performance glazing that admits as much daylight as possible while preventing transmission of as much solar heat as possible.

Roof colour and glare. At armstrong we have always aimed to provide our clients with the best and latest technology to protect their homes as well as the environment. Additionally homeowners often appreciate the virtually clear appearance of the window glazing as it allows for greater daylight and brighter more open views to the outside. Spectrally selective roofing materials o innovative roofing systems e g.

In one sense white building products are already spectrally selective in. Spectrally selective glazing significantly reduces building energy consumption by controlling solar heat gains in summer preventing loss of interior heat in winter and allowing occupants to reduce electric lighting use by making. Heat stress in hot summer brings serious thermal diseases thus adversely influencing the economy and human health of the entire society. Sealed roofs ventilation systems o integrated power roofs pv solar thermal control etc.

That s why armstrong replacement windows feature high performance spectrally selective glass to allow natural light into your home while protecting it from harmful uv rays.