Prior to semi-retiring to Arizona, I was in the Construction industry for 42 years, the last 25 as estimator/project manager for several roofing companies in the San Francisco Bay Area. The "rule of thumb" for 30 lb. exposure to the ultra violet rays of the sum was ALWAYS 30 days. Our companies were larger commercial/industrial so we did few, if any residential projects but I know general contractors always want to get the weight on the building first. Down here in Bullhead City, Arizona we have summer heat averaging 105 to 120 degrees and one sub-division in particular has left tile loaded on felted and batted homes for over 5 months. Just because I always did everything by the book, I would like to cause trouble for this contractor but can't, like the rest of you, find anything in writing.
