mont1230
Member
According to the 2009 IECC it is required to do the blower door test or visual inspection. When getting the results back for the blower door test it's always better than the 7 ACH, but the natural ACH is usually lower than the 0.35 minimum requirement. This causes a health issue for homeowners. By following the prescriptive method of the IECC every house natural ACH would fail. The result is that after the test fails it requires so much cfm of mechanical ventilation to run continuously. My thought is that by using this energy code we're supposed to be saving money, but end up spending more money. (I could get into more detail, but very lengthly) Your thoughts.