Flat Roofing Journal

Skylights & Attics

Skylights, curbs, flashing and the insulated cavity under a Toronto flat roof. Condensation, ice at the roof edge, R-value targets and venting explained.

Flat Roof Skylight Flashing: Where Leaks Actually Start in Toronto

by Flat Roofs Toronto Editorial | Jul 10, 2026 | Flat Roof Systems

If you have ever traced a water stain back to a skylight, you already know the membrane usually is not the problem. In almost every case we investigate across the GTA, the real culprits are the flat roof skylight flashing leak points Toronto homeowners rarely think to...

Flat Roof Ventilation and Summer Heat Buildup in Toronto 2026: Why It Matters

by Flat Roofs Toronto Editorial | Jun 21, 2026 | Flat Roof Systems

When summer temperatures climb across the Greater Toronto Area, the surface of a poorly ventilated flat roof can reach upwards of 70 degrees Celsius under direct sun. That trapped heat radiates downward into living spaces, drives up cooling bills, and slowly degrades...

Tapered Insulation Systems for Flat Roofs: How GTA Contractors Engineer Positive Slope in 2026

by Flat Roofs Toronto Editorial | Jun 2, 2026 | Flat Roof Systems

A tapered insulation flat roof is the difference between a low-slope roof that drains cleanly in a Toronto summer downpour and one that ponds, blisters, and fails years early. Across Toronto, Mississauga, Markham, Vaughan and the wider GTA, building codes and membrane...

Adding Skylights to a Flat Roof in Toronto: Curb Mounting, Flashing and Leak Risks

by Flat Roofs Toronto Editorial | May 18, 2026 | Flat Roof Systems

A skylight can transform a dark hallway, stairwell or kitchen into a sun-filled space, but on a low-slope roof the engineering is far less forgiving than on a steep shingle roof. Successful flat roof skylight installation Toronto homeowners can rely on comes down to...

Flat Roof Insulation in Toronto: Above-Deck vs Below-Deck, R-Values and Ontario Building Code 2026

by Flat Roofs Toronto Editorial | May 1, 2026 | Flat Roof Systems

Executing the thermal envelope of a massive flat roof in the Greater Toronto Area is one of the most highly complex, legally strict, and mathematically unforgiving architectural challenges in the entire construction industry. A traditional pitched roof easily hides...

Flat Roof Insulation: How to Save Energy and Prevent Problems in Toronto

by Flat Roofs Toronto Editorial | Mar 12, 2026 | Flat Roof Systems

Flat roof insulation plays a dual role in Toronto buildings: it keeps your heating and cooling costs down, and it prevents the moisture, condensation, and ice dam problems that destroy flat roofs from the inside out. Flat Roofs Toronto installs and upgrades flat roof...

Google Reviews

What Toronto Owners Say About Their Roofs

These come straight from our Google Business Profile. We cannot edit them, reorder them or take one down, and the rating in the header is whatever Google is showing today.

      
 Excellent4.967 reviews
 4.9
 Excellent67 reviews
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      Posted on Google  
   
   David Albury 
 14 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Called Flat Roofs Toronto when I noticed water pooling on my flat roof. They came out the next morning, found a few soft spots and repaired everything the same visit. Price was very reasonable and they showed me photos of the work before and after. Good flat roof repair is hard to find in this city so I am keeping their number saved.
  
 
     Posted on Google  
   
   Jerry Crawford 
 16 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Needed our old skylight replaced on the flat roof and Flat Roofs Toronto handled it perfectly. Clean install, no leaks, and it actually looks way better than the old one. The team was friendly, showed up when they said they would, and cleaned everything up after. Great choice for skylight replacement on flat roofs in Toronto. Fair price too would happily recommend them to anyone
  
 
     Posted on Google  
   
   Regan Taylor 
 26 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Woke up to a leak dripping through my ceiling and Flat Roofs Toronto saved the day.They found the source fast,patched it up properly,and even checked the rest of the roof for weak spots. No upselling,no nonsense.If you've got a flat roof leak in Toronto, don't wait around just call these guys.Great service at a fair price. Highly recommend
  
 
     Posted on Google  
   
   Kenneth Eager 
 37 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Had some issues with my flat roof after that last storm, so I called Flat Roofs Toronto for a repair. They came out quickly, explained what was wrong, and fixed it the same day. Super friendly crew and very reasonable pricing. It's hard to find a good flat roof repair company in Toronto, so I'm glad I found these guys. Would definitely use them again.
  
 
     Posted on Google  
   
   Mark Rasmussen 
 40 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Just had my flat roof replaced by Flat Roofs Toronto and couldn't be happier. The crew showed up on time, worked fast, and left the place spotless. Price was fair compared to other flat roof replacement quotes I got around Toronto. No leaks, no drama, just a solid new roof. If you're looking for flat roof replacement in Toronto, these are your guys. Highly recommend!
  
 
     Posted on Google  
   
   Adam Kremer 
 63 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Called to replace a flat roof skylight that had given us too many problems. They were straightforward about the cost, came out on schedule and completed the replacement in about six hours. The new skylight is clean, well sealed and the installation quality is clearly better than what was there before
  
 
     Posted on Google  
   
   Thomas Pringle 
 73 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Flat roof skylight replacement done right, would use them again, FRT delivered
  
 
     Posted on Google  
   
   Michael Brown 
 105 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Had a flat roof skylight repair done after another roofing contractor's patch job failed. They were upfront about what had gone wrong with the previous repair and what the proper fix would be. Got it done right this time and the skylight has been leak free for eight months now
  
 
     Posted on Google  
   
   Jackie Hargrove 
 109 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Flat roof skylight replacement was exactly what we needed. Professional throughout, priced the job fairly and completed the installation cleanly and on schedule. New skylight looks great and the waterproofing around it is properly done. Been through a tough Toronto winter without any issues
  
 
     Posted on Google  
   
   Anna Leclair 
 112 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Called Flat Roofs Toronto for flat roof skylight replacement, clean job, fair price, very happy