Why does REScheck ‘pass’ a building envelope U-factor that may not meet the minimum prescriptive requirements in the 7th edition Chapter 61?
When REScheck is used with the REScheck MA version of the code, the resulting building envelope U-factor may not meet the minimum prescriptive requirements found in Table 6107.1. This MA version is based on the 6th edition of the MA State Building Code which is less “stringent” than Table 6107.1. However, this may change. The BBRS Staff requested that the DOE create an updated MA version and received this response “After careful consideration, we have determined that it is not possible to support the (MA) amendments in REScheck….the required software changes will not support other states; and our budget to do this work is severely limited this year.” The MA version will likely be removed from the REScheck code menu in July 2008, If the BBRS adopts the IECC 2006 with the 2007 Supplements for the MA State Building Code, which is consistent with what NH and RI have already done. In the meantime, if compliance of a building envelope is to be done with REScheck the Building Official may sug
