Moss, Algae, and Black Streaks on Calgary Roofs: What They Are and How to Clean Them SafelyBy LuKeJune 29, 20260 Those dark stains and green patches are not all the same problem, and the wrong cleaning method does more damage…
The Edge Fails First: Parapets, Coping, and ES-1 Metal Edge on Calgary Commercial RoofsBy LuKeJune 29, 20260 Why the perimeter is where wind starts peeling a low-slope roof, and how ANSI/SPRI ES-1 edge metal, coping, and through-wall…
