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Ask The Expert Answers: window testing

I live in the dry south west and constantly battle dust and wind coming through my windows. Are my windows faulty? What can I do to prevent and control the dirt?

Even when closed and locked, all operational window and door products can experience air infiltration because the operating component is designed for movement (i.e. the operational sash). Air infiltration occurs as air under pressure enters the home, which may occur through certain points on a locked window. Dust infiltration is found at these operating points.

Tags: air infiltration, arid climates, dust infiltration, window care, window testing

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What's the Difference Between Design Pressure, Performance Grade, and Performance Class?

Standards in the door and window industry are constantly evolving due to changes in technology, building codes and rating system performance requirements. This has led to some confusion around the differences between Design Pressure, Performance Grade, and Performance Class.

Tags: AAMA, design pressure, DP rating, performance class, performance grade, window testing

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