Roof Glazing Creating a light well by using glass in the roof is a popular way of introducing light to central areas of a building. In addition to the normal considerations of thermal and solar-control, we need to consider the safety of the overhead glazing.

In order to deliver the required structural strength and energy performance, the roof glazing itself was made up of double glazed units featuring 10 mm thick Pilkington Suncool™ 66/33 THS outer pane with a 16 mm wide air-filled cavity and an inner pane of 13.5 mm-thick laminated glass.

Laminated glass is made by bonding panes together with a layer of polyvinylbutyral (PVB). The glass is subjected to heat and pressure, creating both a chemical and mechanical bond which improves its impact safety, durability and acoustic-insulation capability.

A glass conservatory roof helps to create an illusion of additional space over and above a polycarbonate roof or tiled conservatory roof. For more information on the benefits or replacing your conservatory Roof - Click the Images below: Thermal Efficiency Noise Reduction Self-cleaning Solar Control

Glass Strength Glass is not like other products used in buildings. It is clear, fairly rigid providing a lot of strength but can be brittle as well.

Pilkington Activ™ ideal for hard-to-reach roof glazing, skylights, conservatories and large glazed areas, saving time and money; Windows look cleaner for longer; Pilkington Activ™ coating lasts the lifetime of the glass; Easily cleaned during dry spells by hosing down; The Pilkington Activ™ range can be used in conjunction with a host of other Pilkington products to achieve a variety of ...

A rising sun at a low angle can heat the glass at the centre before the edges can catch up. Design features like overhangs or even adjacent buildings can throw shadows across the glass adding to the potential problem. The hot glass tries to expand whilst the cold glass around the edges is not expanding.

Glass and Thermal Stress Thermal Stress is created when one area of a glass pane gets hotter than an adjacent area. If the stress is too great then the glass will crack.

Its primary function is to prevent heat escaping through the windows and return heat back into the home. Pilkington Optiwhite™ makes up the outer pane of the glazing unit. Being “extra clear” it allow more light and heat from the sun to enter into the house resulting in so-called passive solar gain; free heat from the sun.