Spectrally Selective Roofing

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.

Spectrally selective roofing.

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. Spectrally selective glazing is high performance glazing that admits as much daylight as possible while preventing transmission of as much solar heat as possible. Spectrally selective window glazing is a suitable addition for both warm and cool climates. 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.

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. Roofing manufacturers have been advised to provide a solar absorptance value for the colour you choose to enable certifier to match it against the range specified in the commitments on the basix certificate. 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. Roof colour and glare.

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. 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 surfaces can reduce the solar absorptance for a given roof colour. Kynar roof coatings using spectrally selective pigments from ferro corporation allow classic roofs to produce aluminum and steel shingles in several dark colors that meet energy star minimums with solar reflectances better than white asphalt shingles.

In one sense white building products are already spectrally selective in. Night sky cooling potential o cool night sky. Spectrally selective roofing materials o innovative roofing systems e g. 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.

Heat stress in hot summer brings serious thermal diseases thus adversely influencing the economy and human health of the entire society.