One of the most important glass performance measures is u value also known as u factor which measures the insulating characteristics of the glass or how much heat flow or heat loss occurs through the glass due to the difference between indoor and outdoor temperatures.
U value vitro glass using laminated glass.
A lower u value indicates better insulating properties.
This thermal and optical performance data simulation tool utilizes the industry accepted software window7 3 operated by lawrence berkeley national laboratory lbnl using international glazing database igdb v74.
Vitro architectural glass is the first u s.
The table below shows a single number rw rating of sound reduction measured in decibels db.
Using argon or krypton in the air space between the two panes of glass provides further insulation as these gases are denser than air and less likely to let heat conduct through the igu.
Vitro laminated windshields protect the most important thing inside the vehicle the people.
A higher r value indicates better insulating properties of the glazing.
Learn more about our full line of low e glass products.
Typically most standard residential buildings are glazed in a 4mm single glass thickness.
Combined with a low e glass coating these gases work to improve the window s overall u value which is a measure of the heat transmission through a.
For complete technical information about designing with low e glass read vitro architectural glass technical document td 131.
Float glass manufacturer to have its entire selection of products recognized by the cradle to cradle certified program and the first in north america to publish third party verified epds for its flat glass and processed glass products.
Acousta laminated glass uses a specially formulated interlayer which is very effective in reducing noise.
R value equals a measure of the resistance of the glazing to heat flow.
For any other glass questions please contact vitro glass or call 1 855 vtro gls 1 855 887 6457.
We offer a wide variety of high performance shatterproof glass solutions that meet the strictest quality standards such as those of the u s.
A large amount of glazing configurations means the perfect glass can be yours.
The bigger the number the greater the sound reduction.
It s not worth adding cost and weight to the windows if the insulation properties are no different from single glazing u value of 5 6.
The units are btu hr ft f.
Td 121 center of glass u values for double and triple glazed insulating glass units with solarban 60 low e glass with 100 air argon or krypton or mixtures of these gases this technical document shows how u values vary in double glazed and triple glazed insulating glass units using solarban 60 low e glass.
However what is the u value for laminate glass as i can t find it anywhere on the web.