Getting a good window is more than just about buying the right product. You also need to make sure that your windows are designed to withstand the elements. Choosing the right materials can save your home from major damage during storms.
Design pressure is a rating that measures the strength of a window or door. It varies from location to location. Some areas require a higher rating than others. For example, homes located in coastal areas may need stronger windows to withstand the winds and rain. In addition, the location of the building will determine the minimum design pressure. To figure out which rating is best for your situation, ask local building code officials for their official recommendations.
The design pressure of a window is measured by a series of tests. One of these is the wooden frame test. This consists of attaching a wood frame to a wall, and then clamping it down. A test pressure of 1.5 times the recommended design pressure is applied, and the window should withstand the force for ten seconds. After the test is complete, you will have the answer to your question: what is the design pressure of the window you plan to replace?
The most important aspect of the wood-frame test is that it is a reliable measurement of the structural load of a window. Generally, you can expect a rating of about 50 pounds per square foot. However, you should not be surprised if you find a rating of 100 or more. Using a lower DP rating can mean the difference between keeping your doors and windows intact during a hurricane, or losing the entire contents of your house.
The performance grade system is another great way to determine which windows and doors are right for you. Products that meet all of the required testing criteria are given the Performance Grade.
The American Architectural Manufacturers Association (AAMA) is one of the most authoritative associations in the business, and they have a very specific list of requirements. These standards include the North American Fenestration Standard. Designed to be comprehensive, this standard includes a variety of tests, including a wooden frame test. The name of the test might sound complicated, but the process is simple.
Other organizations that monitor the design pressure rating system include the Window and Door Manufacturers Association (WDMA) and the National Fenestration Rating Council (NFRC). These groups also conduct tests to find the best products, and provide expert advice on window and door replacement. They are a valuable resource for anyone looking to install new windows in their home.
While you’re at it, you can use the National Certified Testing Laboratory to determine which windows and doors are appropriate for your particular needs. They’re based in Orlando, Florida, and they test everything from doors to windows to installation services. Their mission is to ensure the highest quality, safety and security of the windows and doors installed in your home.