Block-out films are used;
- As an alternative to frosted film whenever there will objects close to the glass.
- Unsightly cables or furniture close to glass.
- Goods stored against glass.
- To conceal building works, i.e. a new stud wall, when the use of a space has changed and the window is no longer required.
- In offices where high levels of privacy and glare reduction are required.
- For those odd little spots like luggage rooms that you just want to hide away.
- If your objective is to stop all light from entering then request Solar Gard Black Opaque.
- We have a few similar alternative products for special situations.
- In circumstances where it would be advantageous to see out, a dark Control Film may be the best alternative, but heat stress should still be considered.
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Black films have a very high solar absorption. This means the glass gets very hot and the chance of glass breakage, particularly with large panes or laminated glass, is very high. This is called Heat Stress.
Shading or heating only a portion of a window increases heat stress. An orientation that gets the early winter sun when the glass has been very cold is also stressful.
Windows that receive no sunlight or have an area of less than 0.25 m2 are not a problem. Black-out films are available and do have their place.
In most instances a white out film, that is, a white film that allows less than 10% light transmission, is a suitable alternative.
Request Solar Gard White Opaque.
If you don't need to block out all the light, consider using a Frosted Film