Agassiz Roofing Winnipeg – CertainTeed Landmark: Cobblestone Gray May 18, 2021May 17, 2021 DerrickRoofing New shingles professionally installed in Whyte Ridge by Agassiz Roofing. CertainTeed Landmark colour: Cobblestone Gray #AgassizRoofing #Roofing #AgassizRoofingWinnipeg #WinnipegRoofing #Roof #CertainTeed #Winnipeg #Roofer