Attic Ventilation Smoke Test
You can test the quality of air flow in your home by conducting what is known as a smoke test.
Attic ventilation smoke test. These candles are not for use with the sse5 smoke blower. You simply add up the nfas of all your vents and divide that number by the area of the attic to determine whether you re within the 1 150 ratio. Test pressure higher than duct design i e. Smoke should be released for capture by the downdraft table at a height of five inches.
It involves a few simple steps to locate air leaks in the attic and to determine the amount of existing ventilation. Testing system designed for 2 in h 2o operation at 10 in h 2o. This is done by turning on all fans and vents and using incense smoke talcum powder or baby power to find potential leak sites. Smoke test candles can help provide valuable information on ventilation systems air leak detection or balancing with an economical and practical method of generating a realistic swirling non toxic smoke with a particle size of 3 2 5 microns.
To inspect your attic ventilation you can hire a professional roofing contractor or you can simply do it yourself. Optional item smoke generator test system. Turn off all combustion appliances such as gas burning furnaces and water heaters on a cool very windy day. Find hidden air leaks by conducting a simple diy smoke test.
Garage or ducts in non conditioned space attic europe. Intake vents located at the lowest part of the roof under the eaves allow cool. Cid iconsiderations maximize. 1 2 2 smoke test smoke is to be used to visually evaluate airflow direction and to identify any turbulence in the inward movement of air violent enough to affect the capture of the majority of the generated smoke.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.