Weather Resistance Testing Jargon Explained

Windows and Doors can be tested to prove their effectiveness as a barrier against all forms of weather from wind to rain. The windows and doors are then given a ‘class’ to indicate how they performed in each test.

EN 12207 is tested for Air Tightness

EN 12207 is tested for Air Tightness

Cross Climate Weather Protection

Cross Climate Weather Protection

Create an Effective Barrier from the Weather

Create an Effective Barrier from the Weather

Integrated Drainage for Effective Rain Protection

Integrated Drainage for Effective Rain Protection

EN 12208 is tested for Water Resistance

EN 12208 is tested for Water Resistance

Durable Aluminium Framing for High Wind Resistance

Durable Aluminium Framing for High Wind Resistance

Protect Your Home from the Elements

Protect Your Home from the Elements

Weather Tight Seals to Stop Drafts

Weather Tight Seals to Stop Drafts

EN 12210 is tested for Resistance to Wind

EN 12210 is tested for Resistance to Wind

Windows and Doors can be tested to prove their effectiveness as a barrier against all forms of weather from wind to rain. The windows and doors are then given a ‘class’ to indicate how they performed in each test.

It is EN 12207 that tests windows and doors for ‘Air Permeability’. This is designed to test the amount of air that will travel through a glass elevation under pressure ie. wind.

Samples of the windows or doors to be tested are done so at third party, accredited testing facilities. The product is built into a testing rig and positive and negative air pressures are directed at the face. This tries to both force air at the window from one side and suck air through the window from the ‘internal’ side. The resulting classes denote how much pressure the window or door was subjected to with acceptable air travel through the system. Windows and doors tested to Class 4 indicate a product that was tested with air pressures of 600 Pa in pressure.

Windows and Doors can be tested to prove their effectiveness as a barrier against all forms of weather from wind to rain. The windows and doors are then given a ‘class’ to indicate how they performed in each test.

It is EN 12207 that tests windows and doors for ‘Air Permeability’. This is designed to test the amount of air that will travel through a glass elevation under pressure ie. wind.

Samples of the windows or doors to be tested are done so at third party, accredited testing facilities. The product is built into a testing rig and positive and negative air pressures are directed at the face. This tries to both force air at the window from one side and suck air through the window from the ‘internal’ side. The resulting classes denote how much pressure the window or door was subjected to with acceptable air travel through the system. Windows and doors tested to Class 4 indicate a product that was tested with air pressures of 600 Pa in pressure.

Windows and doors are tested for their water tightness under EN 12208. The window or door is installed within a testing rig and water is forced at the windows through water nozzles, to represent driving rain, at differing pressures for lengthening periods of time. The highest designated class is 9A which indicates the window or door was unprotected and withstood 600 Pa of water pressure for 55 minutes. Classes 1-7 with a B sub-label indicate that the windows or doors were partially protect by a balustrade or similar.

The resistance to wind load is tested through EN 12210, it is designed to test the wind load a window or door can withstand without serious deflection or damage. The resulting classes are broken into two elements; the number (1-5) which indicates the pressure of wind applied to the product and the letter (A-C) which indicates the amount of deflection accepted in the test. For example a class 5 tested product has been tested with winds up to 2000 Pa in pressure.

In all of the above tests an ‘E’ results (such as E2400) indicates the tested product exceeded the defined testing method boundaries and testing was continued with increasing pressures. The number following E shows the pressure the window or door was tested to.

Information about weather testing of Hedgehogs products are included on all product pages with their designated classes.

In all of the above tests an ‘E’ results (such as E2400) indicates the tested product exceeded the defined testing method boundaries and testing was continued with increasing pressures. The number following E shows the pressure the window or door was tested to.

Information about weather testing of Hedgehogs products are included on all product pages with their designated classes.

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