That nail pull demo looks convincing at the kitchen table, but it says very little about how your roof handles a Prairie windstorm. Here's what the GAF Timberline HDZ wind warranty actually covers, what it takes to qualify, and what to ask your roofer instead.
Read MoreSouthern Manitoba gets hit hard every hail season, and not every shingle handles it the same way. Here's what a Class 4 rating actually means, where the GAF Timberline UHDZ with UltraMat fits in, and whether it's worth it before your next reroof.
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