HELPING THE OTHERS REALIZE THE ADVANTAGES OF STEEL ROOF

The roofer also claimed there was some fungus/mildew expanding from the attic (white places on some of the roof joists), which was an indication of poor air flow within the attic. Once i re-roof, really should I am going While using the plywood versus OSB? Should I have the quantity of attic vents amplified?Our Ottawa roof repair team isn't too occ