The typical roof lasts a quarter-century. When yours starts to show signs of wear, you start to weigh your options — and perhaps you've found evidence that you don't have to remove your existing roof at all.
Instead, you might have heard that you can have metal roofing installed over your existing shingles. This process seems almost too good to be true, but is it?
Here's all you need to know about installing metal roofing in Calgary and beyond.