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The following chart is provided to clarify the DP rating requirements for each design wind speed per the International Residential Code and the Guidelines for Hurricane Resistant Residential Construction.
The Design Professional is required to provide a floor plan of each level labeling each window with its DP rating or provide the information shown below on the drawings. All windows, doors, and skylight opening (inclusive of garage doors) are required to bear the label to indicate the pressure rating. Such a label must be affixed to windows
A “DP” or “design pressure” rating is a numerical value given to a building component that represents its ability to withstand a given amount of wind load. DP ratings represent three performance elements — structural load, water resistance, and air infiltration resistance.
The design pressure of an impact window is a numerical value that demonstrates how much pressure or resistance to wind a window can withstand before failure and the glass pops out of the window frame.
28 mar 2016 · What is Design Pressure, and how does it impact the windows or doors you are considering for your home? Let’s start with the definition of Design Pressure.
Design pressure ratings for windows and doors include a number of performance factors such as: structural test pressure, water penetration, air infiltration, operational force and forced entry testing.
14 sty 2019 · The 2018 IRC requires site-built windows to be tested for design pressure in accordance with ASTM E330. This standard was updated from the 2002 edition to the 2014 edition in the 2018 IRC. Skylights and Sloped Glazing
