When it's measured, heat loss in buildings doesn't match energy models more than half of the time... why?!

OBJECTIVE v3 is the latest open source Building Code Review, Targeting and TEUI measurement tool, in spreadsheet format,  developed originally by the Ontario Association of Architects and now OpenB…

Gap shares tumble 13% as retailer cuts sales guidance after disappointing Old Navy performanceGap issued mixed fiscal first-quarter results, missing on the top line but beating on the bottom. CEO Richard Dickson told CNBC sales at Old Navy were worse than expected after the brand's spring and summer assortment failed to land with shoppers, leading it to cut its full-year sales outlook. Gap is now expecting companywide sales to grow between 1% and 2%, down from a prior range of between 2% and 3%.Sales at Gap's largest brand Old Navy fell short of expectations during its fiscal first quarter, leading the retailer to cut its sales guidance on Thursday. During the quarter, Old Navy's comparable sales grew 1%, while analysts expected them to grow 3%, according to StreetAccount. As a result, Gap cut its sales outlook and is now expecting companywide sales to grow between 1% and 2%, down from a prior range of between 2% and 3%. While Gap cut its sales outlook for the year, its profitability..