13,990 square feet of flat roof with sloped synthetic slate tile mansard roof. A very narrow drainage trough area at the base of the mansard. Site setup, multiple roof areas and elevations presented challenges when handling materials.
48,280 square-foot full replacement of heritage building roofing system. Guidelines were strict for this project to maintain the heritage designation of the building.
18,770 square-foot roof replacement was completed with extensive carpentry work to raise parapets, upturns at walls and to the metal siding at mansard wall. All repairs were required to be done during the summer period.
Building Type: School
Type of Replacement: Partial replacement.
Roof Membrane: 2 plies SBS base sheet, 3 plies of type 4 glass felt, asphalt flood coat and gravel.
Insulation: 1.0″ fiberboard + tapered insulation perimeter backslope and oversized drain sumps + 2.5″ ISO
Deck Type: Metal
This building changed ownership in the past year and underwent an extreme makeover. The roof was leaking in multiple locations and this meant that the 30,000 square foot roof needed an upgrade. By leaving in place existing dry materials along with upgraded insulation and membrane, we successfully repaired this roof on time, and under budget.
Type of Project: Full Replacement/Recovery
Roof area: 30,505 sqft.
Deck Type: Steel & concrete
Roof Membrane (field area): 3 ply hybrid – 1 ply SBS sand-sand base sheet + 2 plies type 4 glass felt, flood coat of asphalt and pea gravel
Flashing Membrane (perimeter and roof upturns): 2 ply SBS modified bitumen