CycloneSafe

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Compare glass types for all performance values.

Note: 15mm laminated double glass is the only type available in CycloneSafe for Regions C and D

U-value is a measure of how effective the glass type is as an insulator.

The lower the U-value, the better the glass is as a heat insulator. 

SHGC or Solar Heat Gain Coefficient

is a measure of the amount of heat that can be gained through your windows at times of direct solar contact.

The SHGC is measured as a coefficient and indicates the amount of direct solar heat that will penetrate your house.

High SHGC is generally considered to be good in cold climates but not good in warm climates.

Soundproofing your living space is important if you are affected by outside noise.

Different glass types have different abilities to absorb sound.

The more sound absorbed,the less that can penetrate your living space. 

Infrared heat transfers energy to an object through electromagnetic radiation.

In living spaces this will result in objects becoming warmer when exposed to direct sunlight, including floors and furniture.

In cold climates this is desirable but in warmer climates it is better when reduced.

UV transmission is a measurement of the amount of ultraviolet light that passes through glass.

Lower UV transmission levels are generally considered desirable over high UV transmission levels.

Visible Light Transmission is calculated on the percentage of light that's visible through glass.

The lower the VLT, the less visible light that will penetrate your living spaces.

For example, if a window has a VLT of 75%, that window lets in 75% percent of exterior light.

A reduction in VLT for rooms often exposed to bright sunlight will make the living spaces less susceptible to glare.