Spectrally Selective Roofing

In one sense white building products are already spectrally selective in.

Spectrally selective roofing.

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

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. Spectrally selective roofing materials o innovative roofing systems e g. Spectrally selective surfaces can reduce the solar absorptance for a given roof colour. Spectral distribution of solar radiation.

Night sky cooling potential o cool night sky. 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. 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. 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.

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. 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. Roof colour and glare. Sealed roofs ventilation systems o integrated power roofs pv solar thermal control etc.

Tests indi cate that the colors will sharply reduce solar heat gain through the roof.