Any ideas what might cause severe buckling of roof sheathing? This house dates back to the 60's with 3/4" 1x8 pine decking. The boards dont appear to have come loose at the nails, but instead have cuped badly....1-1/2"- 2" in places. The worst area is over a full bathroom that doesnt have an exhaust fan or window and theres an attic access hole directly outside the bathroom door. There was a window in the bathroom at one time, but that was eliminated a few years ago. Its a shingled, hip roof with no soffit vents and only 2 small attic vents (apx. 1000sq. Ft.).
Im thinking the problem is related to condensation and lack of proper attic ventilation along with not having a bathroom exhaust fan that vents outside. Could this cause the roof deck to buckle...or are there other potential causes? Im stumped. Very extreme climate here...100+ in the summer...-30's in the winter.
Im thinking the problem is related to condensation and lack of proper attic ventilation along with not having a bathroom exhaust fan that vents outside. Could this cause the roof deck to buckle...or are there other potential causes? Im stumped. Very extreme climate here...100+ in the summer...-30's in the winter.