Blower Door Test New Construction

Understanding blower door test results.

Blower door test new construction.

Blower doors consist of a frame and flexible panel that fit in a doorway a variable speed fan a pressure gauge to measure the pressure differences inside and outside the home and an airflow manometer and hoses for measuring airflow. In the typical insulation drywall progression wouldn t the walls be insulated then everything drywalled. While many builders get blower door tests done on their builds not as many stick around and watch the process. There are two types of blower doors.

Our reaction airtightness is for everyone as a company built on airtightness we have always pushedthe building industry and building codestoward progressively tighter and tighter building goals. One article said to preform the test on new construction after insulation but before drywall. For builders watching the process can help improve their processes for their next build. An air tight home is a demonstration of a higher quality of construction.

Because even at just 3 0ach50 increasing the airtightness of the building envelope will make a huge difference for the comfort and the. New construction blower door testing. Simply put a blower door is a diagnostic tool used to measure how much air infiltration air leakage occurs in a house. In new construction a blower door test is performed at the completion of the home building process and if the house is found to be drafty the builder will have to seal the leaks and then have.

Many cities and counties along the front range require that the overall air infiltration of a new construction residence be tested and verified to be in compliance with the applicable area s. Derwort construction llc is a local construction company founded in 2015. We specialize in new construction custom homes as well as blower door testing and duct work testing with certification through the building performance institute inc. Many builders have asked us for a blower door testing checklist in order to prepare themselves for the test.

The most common use of a blower door test is as a part of code compliance testing in new home construction. Getting a blower door test for your central new york new construction project will help you ensure the correct building tightness helping you avoid overuse of energy due to air leakage avoid moisture problems avoid cold air drafts and find out how much ventilation you ll need to ensure the right indoor air quality levels. Bpi which is accredited by the american national standards institute inc. We hope to answer these questions below.

Think of it this way. I have read some of the articles on here about blower door testing and most appear to focus on existing construction. Because the air leakage is so important this test is required by building code. Last year we built an energy star home for a customer and we used a blower door test to evaluate the houses air infiltration performance.