PFG has the advanced equipment needed to live the full solar range – wavelengths from 300nm to 2 400nm. With this in-house testing expertise, it offers a world-class measuring solution that's accredited in terms of NFRC criteria. This provides the South African glass industry convenient, local access to an accredited spectrophotometer – with the arrogance that results are compared on a like-for-like basis. Samples are often tested locally. PFG has characterized over 130 of its products, including its leading ClearVue, SolarVue and SolarShield range of products
The glass features a critical role to play in reducing excessive noise to acceptable levels which will enhance a pleasing living and working environment. For superior sound insulation performance, PFG offers a vast range of safety glass combinations that incorporate standard and acoustic clear and tinted PVB interlayers. The PFG range of acoustic safety glass is branded
A combination of those acoustic laminated glasses in insulating glass units and a wide airspace window, can further reduce the ingression of unwanted noise and enhance thermal insulation and solar heat control of glazing designs.
A measure for the sound insulation of glass is expressed as Rw, which is a mean value measured in decibels (dB) that takes under consideration the sensitivity of the human ear to sound volumes, frequencies, and pitch. the upper the Rw value, the higher the noise reduction of the glass.
Ultraviolet radiation exists within the wavelength band of 300 to 380 nanometres within the solar spectrum. future exposure to UV radiation can cause fading and discoloration of fabrics, artworks and therefore the deterioration of plastics and timber. The PVB interlayers in safety glass serve to guard interior furnishing and fittings against the damaging effects of ultraviolet by eliminating up to 99% of UV rays. Fading is additionally exacerbated by high levels of light
and infrared. To combat the degradation of materials, the sunshine transmission, and solar heat are often reduced using tinted PVB interlayers, heat-reflecting coated glass or combinations of both.
The ISO Damage Weighted Transmittance (Tdw-ISO) values illustrate the functionality of glass to scale back fading by taking into consideration the transmittance of both UV and visual light within the wavelengths from 300 to 600 nanometres. The shorter wavelength UV features a higher weighted damage factor than the longer wavelength light, and therefore the sum of these wavelength-specific factors leads to a Damage Weighted Transmittance for every glass type. The optical and solar performance data of the laminated glass products that are featured during this brochure are based on environmental conditions defined by the National Fenestration Rating Council (NFRC). The spectral data were derived using the methodology of NFRC 200 – 2010 for Solar Heat Gain Coefficient and NFRC 100 – 2010 for the U-value.
All Solarshield and SolarVue embedded coating laminated glass products are listed on the International Glazing DataBase, and therefore the respective IGDB codes appear within the tabulations that follow. These products also are listed on the South African Glass DataBase and are referenced with IGDB codes.