Attention Home Owners whos homes were constructed by Keith Wright Homes. A common company business practice by Keith and his associates has always been to place OSB roof decking upside down just to keep from slipping from the roof. This gives much-much less roof life than simply installing the moisture barrier in the proper position, sealant side-up, as directed by the manufacturer. The waterproof barrier is placed up for a reason, to guard against moisture condensation ROT under roof felt and shingles. Check to see if your roof decking has been negligently installed today! http://www.askthebuilder.com/B304_OSB_Board_Qualities.shtml † Downtown Pentecostal Holiness Church †