RDH Expands Passive House Verification Services in Massachusetts
We’re excited to announce that John Mann, EIT, CPHC, of RDH has recently achieved certification...
Read MoreWe’re excited to announce that John Mann, EIT, CPHC, of RDH has recently achieved certification...
Read MoreWe have tracked 1,651 buildings over a 20+ year period and have identified five life...
Read MoreThere is a ‘glass half-full’ perspective worth considering: upgrades that increase the market value and...
Read MorePerformance Class is a brand new concept to many in the Canadian fenestration industry and...
Read MoreHow can governments and consumer associations transform the market so that we can achieve deep...
Read MoreOur clients have asked when they should start preparing for the update report – essentially...
Read MorePerformance Class is the master organizing principle within the NAFS standard. Classification of products is...
Read MoreConfused about NAFS and mullion testing? New Canadian guidelines clear things up for window manufacturers...
Read MoreAs a consultant I have heard the same old stories over and over again. It...
Read MoreNAFS-08 doesn't have a Folding Door product type, but that hasn't stopped some manufacturers from...
Read MoreNAFS, the North American Fenestration Standard, changes how we test and specify fenestration performance in...
Read More