We conducted a blower door test at the owner's residence in Cliffwood, NJ. This diagnostic tool helps our professionals accurately measure how much your homes air is naturally leaking. Limiting air leakage is essential for energy efficiency and overall comfort. By reducing air leakage, it addresses concerns such as energy waste, moisture problems, and uncomfortable drafts.
Solution
Before the work was performed the house initially leaked 3,752 Cubic Feet of air per Minute (CFM) under pressure. However, after proper air sealing and insulation, the final test revealed we reduced leakage of 1,313 CFM, translating to a new total leakage of only 2,439 CFM. This represents nearly a 35% reduction in overall leakage, with over 60% decrease in 'excessive or unnecessary' leakage.
Project Summary
Products Used: Blower Door Tester, Manometer, TruSoft, & ZypFoam
This small house lacks sufficient attic insulation and proper air sealing.
The blower door tester is made up of a frame and a flexible panel that is designed to fit into a doorway. It features a variable-speed fan and a digital pressure gauge for measuring pressure differences inside and outside the home. This configuration is connected to a device known as a manometer, which is used to measure airflow.
The manometer indicates that the house is experiencing a leakage of 3,752 cubic feet of air per minute (CFM) under pressure.
After completing the blower door test, our crew will enhance the comfort of this home. In the attached picture, you can observe the fiberglass insulation is removed from the attic, and we are currently in the process of air sealing the attic floors using orange ZypFoam sealant.
After completing the air sealing process, we installed TruSoft cellulose insulation in the attic, significantly improving the comfort and energy efficiency of this home.
After our crew completes their work, we conduct one final blower door test to compare the results and quantify the reduction in air leakage, showcasing the savings achieved for the homeowner.
The manometer results reveal a new total leakage of only 2,439 CFM. This signifies a substantial 35% reduction in overall leakage, including a remarkable 60% decrease in 'excessive or unnecessary' leakage. This exemplifies the principles of building science, showcasing our ability to provide tangible data on your home's leakage. Our work not only reduces overall leakage but also contributes to lower energy bills and enhanced comfort in your home.
