OYH Roofing

Ponding Water on a Flat Roof: Causes, Risks and Fixes in Ontario

Aerial view of Mississauga commercial roofing project at 3185 Mavis Rd showing 8500 sqft modified bitumen roof installation

Ponding Water on a Flat Roof: Causes, Risks and Fixes in Ontario When standing water is normal, when it becomes a problem, what causes it and how roofers fix it on commercial flat roofs. Call 1-833-775-7663 Oakville head office · Flat roof repairs, replacements and inspections for commercial, industrial and institutional buildings across Ontario Karol […]

Modified Bitumen vs TPO: Choosing a Commercial Flat Roof in Ontario

Industrial roofing Mississauga project showing 2-ply modified bitumen roof surface

Modified Bitumen vs TPO: Choosing a Commercial Flat Roof in Ontario How a layered, asphalt-based roof compares with a single white, heat-welded sheet on foot traffic, summer heat, cold-weather installs, lifespan and cost. Call 1-833-775-7663 Oakville head office · Modified bitumen and TPO roofs for commercial, industrial and institutional buildings across Ontario Karol Rajkowski Vice […]

Commercial Flat Roof Lifespan: What Ontario Owners Can Expect

Welland commercial roofing project at 777 Niagara St aerial view showing 52300 sqft modified bitumen roof installation

Commercial Flat Roof Lifespan: What Ontario Owners Can Expect How long TPO, PVC, EPDM, modified bitumen and built-up roofs last, what Ontario weather does to them, and how to tell when a roof is near the end. Call 1-833-775-7663 Oakville head office · Flat roofs for commercial, industrial and institutional buildings across Ontario Karol Rajkowski […]

PVC vs TPO Roofing: How to Choose for an Ontario Building

PVC vs TPO Roofing: How to Choose for an Ontario Building Two white, heat-welded single-ply roofs that look alike from the ground but differ in chemistry, chemical resistance, fire performance and cost. Call 1-833-775-7663 Oakville head office · PVC, TPO and modified bitumen roofs for commercial, industrial and institutional buildings across Ontario Karol Rajkowski Vice […]

Commercial Roof Warranty: What Ontario Owners Should Get

Drone view of commercial building at 777 Niagara St Welland with new modified bitumen roofing system

Commercial Roof Warranty: What Ontario Owners Should Get The types of commercial roof warranty, how long they run, what voids them, and five questions to ask before you sign. Call 1-833-775-7663 Oakville head office · Flat roofs for commercial, industrial and institutional buildings across Ontario Karol Rajkowski Vice President, OYH Roofing Published October 5, 2026 […]

Prepare a Flat Roof for Winter: A Fall Checklist for Ontario Buildings

High angle drone shot of modified bitumen roof installation at 777 Niagara St Welland 52300 sqft commercial roof

Prepare a Flat Roof for Winter: A Fall Checklist for Ontario Buildings What to check in October, who should do it, and why repairs slow down once GTA temperatures drop toward 4°C in November. Call 1-833-775-7663 Oakville head office · Inspections and repairs for commercial, industrial and institutional flat roofs across Ontario Karol Rajkowski Vice […]

TPO vs EPDM: Which Flat Roof Fits Your Building?

60 mil TPO membrane on Mississauga industrial roof

TPO vs EPDM: Which Flat Roof Fits Your Building? How the two most common single-ply roofs compare on seams, summer heat, lifespan and repairs, and which one suits office and commercial buildings in Ontario. Call 1-833-775-7663 Oakville head office · Flat roofs for commercial, industrial and institutional buildings across Ontario Karol Rajkowski Vice President, OYH […]

Cool Roof Guide: Benefits, Limits and Toronto Grants

60 mil TPO roof on Devi Mandir temple in Pickering

Cool Roof Guide: Benefits, Limits and Toronto Grants What a reflective roof does on a commercial building in Ontario, where it pays off, where it does not, and how Toronto’s Eco-Roof grant works. Call 1-833-775-7663 Oakville head office · Flat roofs for commercial, industrial and institutional buildings across Ontario Karol Rajkowski Vice President, OYH Roofing […]

Restaurant Roofing: Keep Grease Off the Roof

New-build residential PVC roof in Sault Ste. Marie, Ontario

Restaurant Roofing: Keep Grease Off the Roof What kitchen exhaust grease does to a flat roof, which membranes hold up, and the five habits that keep a restaurant roof dry in Ontario. Call 1-833-775-7663 Oakville head office · Flat roofs for commercial, industrial and institutional buildings across Ontario Karol Rajkowski Vice President, OYH Roofing Published […]

Warehouse Roof Replacement: Planning Guide for Owners

Completed 2-ply modified bitumen industrial roof in Mississauga by OYH Roofing

Warehouse Roof Replacement: Planning Guide for Owners How re-roofing a warehouse works in Ontario: when it is time, how the work runs while trucks keep moving, and which flat roof system fits. Call 1-833-775-7663 Oakville head office · Flat roofs for industrial, commercial and institutional buildings across Ontario Karol Rajkowski Vice President, OYH Roofing Published […]