Blower Door Cost

There are three primary components to a blower door.

Blower door cost.

What is a blower door test. A blower door test is often an essential part of a home audit we don t know for sure just yet if it will be part of the free home energy audits promised by the canadian liberal government in oct 2019. This would be true if a blower door test cost anywhere near that. The 20mph wind is equivalent to 50 pascals pa of pressure difference.

For the sake of simplicity we ll look at new equipment from two leading manufacturers. A blower door is a machine used to measure the airtightness of buildings. 1 a calibrated variable speed fan capable of inducing a range of airflows sufficient to. The fan pulls air out of the house lowering the air pressure inside.

Minneapolis blower door model 3 with dg 1000 digital gauge. A blower door is a powerful fan that mounts into the frame of an exterior door. As with any purchase prices vary by manufacturer and whether the product is new vs. A blower door fan simulates these conditions during a test.

The 50 is based on actual bids. Pricing can be obtained separately for caulking and sealing the air leakage. The report lists the sealing measures in a cost efficient priority. During this test a calibrated fan is installed in an otherwise sealed door or window while all the other openings to the exterior are closed.

It can also be used to measure airflow between building zones to test ductwork airtightness and to help physically locate air leakage sites in the building envelope. Blower door equipment costs. The blower door test. The blower door test costs about 450 00 for a typical house.

A blower door test costs about 50 that s the incremental cost of adding a blower door test to a site visit from a contractor that was going to be there anyway the cost is lower for weatherization agencies using in house crews. This includes a report of the air leakage locations and recommendations for the sealing approach. Estimating blower door flow for each blower speed. The blower door test simulates wind blowing against a building at 20 miles per hour in which case the total volume of air within the house would be exchanged with outside air 7 times.

Blower door tests are becoming part of many state and provincial mandatory building codes the new bc energy step code in british columbia canada is one example. Estimating flow rate at 50 pa when you can get to 50 pa when you can t get to 50 pa. This section covers all the aspects of figuring out blower door flow estimating 50pa flow comparing your home tightness to others and estimating natural infiltration rates heat loss and fuel costs.