1. Operating Force – both the maximum force required to open the unit and keep in motion. This means your doors and windows will be easy to open and close

2. Air Infiltration – maximum allowed air leakage with a 25 mph wind applied to the exterior of the unit. Our engineers measure the amount of air that can leak past the frame on a windy day.

3. Water Resistance Test Pressure – resistance to water penetration for a given pressure difference across the unit while a minimum of 5 gallons/sq. ft. per hour is sprayed onto the exterior of the unit.

4. Uniform Structural Test Pressure – determines the structural performance of the unit for a given exterior pressure and interior pressure. After each pressure loading, there cannot be any glass breakage, permanent damage to fasteners, hardware parts, or any other damage that would prohibit the normal operation of the unit. Also there may not be any permanent deformation beyond a specified percentage of its span.

5. Deglazing Test of Primary Sash – vertical members have a 70 lb force and horizontal members have a 50 lb force applied, individually, and they cannot move beyond a specified distance, relative to their original position. This tests that your Betterliving windows are durable and well constructed.

6. Forced Entry Resistance – all locks shall provide reasonable security against forced entry. In this test, force is applied to see if the window can be pulled from its latch with a screwdriver or putty knife.

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