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Townhouses and the REScheck Compliance Option

Townhouses and the REScheck Compliance Option

Question: We have a project with 2-unit and 3-unit townhouses. Is a separate REScheck required for each unit and how do we treat the common walls between units? Answer: First a review of a definition from the IRC (International Residential Code) is useful in the...

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Insulating Ducts with Building Insulation

Insulating Ducts with Building Insulation

The question: is it acceptable to simply insulate under and around the ducts with the building insulation? Referring to the IECC: R403.3.1 Insulation (Prescriptive). Supply and return ducts in attics shall be insulated to a minimum of R-8 where 3 inches (76 mm) in...

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Duct Leakage Testing

Duct Leakage Testing

Question: Do I have to test residential ducts located outside the thermal envelope if I use the Performance or ERI Path for IECC Code Compliance? How do the Utah state amendments affect the testing requirement for ducts?I have received numerous questions regarding...

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