Laminated glass has the same strength as ordinary glass but it consists of two pieces of glass containing a sandwich of plastic interlayer.

The acoustic performance of glazing was improved mainly by increasing the thickness and asymmetry of glass panes in double-glazed units.

The World Health Organization(WHO) recommends an ambient noise level of below 35dB for a good night's sleep.

Solar radiant energy entering a room through the glass is absorbed by interior objects and surfaces, which then retransmit the energy as thermal radiation, mainly in the far infra-red band.?

Condensation forms very differently depending on whether it is inside or outside the building, due to the thermal bridge effect around the cavity. Surface condensation on the internal face always starts in the corners, mainly due to the additional cooling caused by the thermal bridge.