Ask The Expert Answers: AAMA
What is the difference between Design Pressure, Performance Grade, and Structural Test Pressure
The terms "Design Pressure", "DP," "Performance Grade," "PG," and "Structural Test Pressure," "STP" have in the past been loosely used by some in the field. This answer will clarify what the differences are between them.
Tags: AAMA, design pressure, NAFS, performance grade, structural test pressure
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
Tags
- replacement windows
- energycore
- MI energycore
- MIWD
- energy efficient windows
- condensation
- double glazing
- double pane glass
- humidity
- window egress
- emergency
- building codes
- escape
- residential codes
- double hung window
- pocket sill
- sloped sill
- hybrid sill
- energy core
- design pressure
- DP rating
- performance class
- performance grade
- window testing
- AAMA
- tempered glass
- annealed glass
- u-value
- r-value
- heat transfer
- energycore windows
- structural test pressure
- NAFS
- how to measure a window
- window measurement
- new construction windows
- conduction
- convection
- air inflitration
- operating panels
- xoox
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