Velux Roof Skylight Review

Commercial Skylights
Commercial Skylights

General Roofing Systems Canada Installs and Repairs Velux Skylights throughout Canada. Skylight Installation and Skylight Repair services in Toronto, Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Cranbrook, Kelowna, Vancouver, Whistler, and points between.



Skylights, like any other product that most roofers install everyday, are becoming more advanced and have more types and options available all the time. Choosing the right skylight, the right skylight installer, or skylight repair technician can be a challenge.

Choosing the right Skylight Installer or Skylight Repair Technician

Skylights - Residential Skylights and Roof Windows
Skylights – Residential Skylights
and Roof Windows

The real review of skylights or anything else we use on a daily basis is primarily determined by the installer. The number one word of advice we can give is to choose  the right contractor. A roofer that installers skylights regularly is your best bet, as the roof membrane, flashing, curb, and system itself may all be one issue. Once you have the right technician installing your skylights, the issue of choosing a skylight brand is the easy part. Most skylight brands are competitive in price and perform well.

At General Roofing Systems Canada, Velux Skylights are a standard. We use or recommend Velux Skylights regularly for these reasons:

  • Velux skylights offer suitable dependendable, and predictable performance. They have an excellent warranty structure and service to back it up. Sure, there may be specialty manufacturers that may suit a specific situation or performance requirement better, but all in all, Velux products are one of the standard recommendations we make.
  • Readily available. Velux is well-distributed in Western Canada and their service is exceptional.
  • Great track record. Founded by Villum Kann Rasmussen more than sixty years ago, Velux Skylights have a history of performance and dedication.
    Sun Tunnel (Roof Solar Tube)
    Sun Tunnel (Roof Solar Tube)
  • Variety of products. Whether it is a residential or commercial skylight, sun tunnel, roof windows, etc. Velux has many options to offer.


Velux Skylight Main Web Link

Velux Skylight Warranty

Velux Skylight Residential Skylights

Velux Skylight Commercial Skylights

Velux Skylight Sun Tunnels

Velux Skylight Roof Windows

Choosing a Roofing Contractor for your Skylight Install or Repair
Our Skylight Replacement Guarantee – Lifetime Workmanship Guarantee
Request a Skylight Replacement or Roof Repair Estimate
Until next time,
The Team at GRS
General Roofing Systems Canada (GRS)

24 Hour Emergency Roof Repair: Call +1.877.497.3528 toll-free.

British Columbia | Alberta | Saskatchewan | Manitoba | Ontario

IKO Cambridge Shake to Shingle Conversion in Fairmont Hot Springs, British Columbia

Taken from our 2011 archives.

General Roofing Systems Canada Provides Shingle Roofing Throughout Canada. Toronto, Calgary, Red Deer, Edmonton, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Kelowna, Vancouver, Whistler, and points between.

Below is a report we received from one of our shingle re-roof crews today from Fairmont. 


Shingle to Shake Conversion, IKO Cambridge Dual Black Lifetime Warranty Shingles, High Profile Ridge Cap, Ice & Water to Eaves and Valleys, Roof Edge Coloured Drip Flashing to Eaves and Gable Ends, Coloured Valley installed in roof valleys (Ice & Water to sheathing, then valley metal, then Ice & Water to sides of metal and synthetic underlay run through horizontal to valley), Synthetic Dupont Underlay to roof deck, Ventilation Corrected – vent holes cut and Duroflo Roof Vents installed, Skylight Re-Flashed with Coloured Metal and Ice & Water Underlayment to Skylight Curb.

Field Report, June 21 2011:

The client’s roof was a cedar shake tear-off/conversion about 20 to 25 years old and was already showing major signs of deterioration, most likely because of the area’s humidity. The flashing on the skylight had been improperly installed, causing it to leak on the top and staining the ceiling on the inside. We wrapped it up the curbs with Ice & Water shield and installed new coloured skylight flashing. Since the main house was a vaulted ceiling, the moisture that was coming in would have went right down the drywall and followed it down all the way to the bottom. Also, because of the vaulted ceilings, the insulation was up close to the sheeting and there were no air vents installed. We cut in and installed two air roof vents one two of the roof’s dormers – both of which had less than 100 ft. of air space.

As you can see from the photos below, the finished Cambridge IKO dual-black shingle roof has great architectural style, especially with the high profile shingle cap.

Completed re-shingling in Fairmont, BC
Shingle Crew Packing Up
Yard clean up complete.
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GRS Roof Valley Spec; install ice and water to roof sheathing, then W coloured valley metal, then ice and water to edges of valley metal, then synthetic underlayment (Dupont roof underlay in this instance).
Completed Shake to Shingle Re Roof (Side of home)
Completed Shake to Shingle (back side of home)
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GRS Shingle Re-Roof Specifications at work, it is impossible for this roof to leak.
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Preparation of valley area – ice and water membrane run through valley area to roof deck both ways prior to vertical ice and water installed, then metal, then Ice & Water to sides of metal.
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Another photo of the preparation of the valley area.
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Skylight Membrane. Premium Ice & Water to skylight curb prior to skylight flashing being installed. Note the order of membrane application. Bottom, then sides, then top of skylight curb.
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Skylight Flashing Specifications at its best.
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Premium Ice & Water 44″ to all eaves and valleys.
Skylight flashing completed. Coloured flashing. Good match to the IKO Cambridge Dual Black Architectural Shingle.
High profile ridge cap shingles, colored W valley flashing, coloured Duroflo vents, shingles are not over exposed and good straight lines in installation.
Coloured Valley Flashing matches IKO Shingles well. Chimney flashed to show black flashing to street view.
Architectural shingle. IKO Lifetime Warranty Cambridge Shingle.


General Roofing Systems Canada (GRS)

24 Hour Emergency Roof Repair: Call +1.877.497.3528 toll-free.

British Columbia | Alberta | Saskatchewan | Manitoba | Ontario

Roof Skylight Repairs and Installations

General Roofing Systems Canada installs and repairs skylights throughout Canada. Toronto, Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Banff, Cranbrook, Kelowna, Vancouver, Whistler and points between.

Skylight repair and installation is a trade in and of itself. One of the most common calls that our call center receives is the “my skylight is leaking” call or the “I hired them to install my skylight and this went wrong, and now my skylight leaks.”

Repairs and Installation – Who Do You Hire?

Our recommendation for skylight repairs and installations is to hire a repair company that has roofers who also know, and are experienced in, skylight repairs and installations. The reason is that skylights are installed on a roof – more specifically, they are typically installed on a roof curb (the skylight is mounted to the curb), and the roof curb has special flashing designed for around it and/or the skylight, with the roof curb being attached to the roof system. After all that, the roof curb (if required), the skylight flashing, and the roof membrane must all be installed properly so that your home or business does not have a skylight leak or a roof leak. We continually recommend an expert roofer that is also an expert skylight installer to be the best skylight repair and installation technician you can get.

The Cause of Skylight Leaks

Skylight repairs are more difficult at times than our roof membrane repairs – tricky to say the least. The following are some of the causes of skylight leaking which need repair:

  • Leaking due to flashing failure/flat roof membrane repairs.

The skylight flashing installation is typically the cause for a skylight leak. Repairing skylight flashing can be challenging. The skylight flashing may be a special order, or the skylight flashing will likely be apart of the roof membrane. In the case of commercial skylight repair or residential homes with flat roof skylights that are leaking, this can become more of a challenge. If the skylight leak is on a flat roof installed skylight, you may need a certified SBS modified torching roofer to deal with the skylight flashing and the roof membrane, or in the case of TPO, EPDM, PVC, or even tar and gravel roofing scenarios, quite often you will need a specialized roofer and the skylight repair coordinated in one job.

  • Leaking caused by roof membrane failure at penetration.

Roof membranes break down over time. Your skylight may be leaking because your roof membrane was either installed incorrectly or it is simply breaking down from age. Nonetheless, you will need a specialized roofer to repair the roof membrane. The shingles or flat roof membrane will require the right roofer with the right skills for the repair.

  • Leaks caused from failure.

Skylights, like everything else, age and break down. It may be that some caulking repair is required at the skylight, or the flashing needs repair, or the curb has rotted and needs replacing. Typically, if age is the cause of the leaks, with advancements in technology, you are better served replacing your skylight versus repairing it.

  • Leak caused from condensation.

Skylights were not made like they are now say… twenty years ago. New skylight technology deals with most condensation issues and there are less repairs needed as a result. However, not even the best system can stop condensation from affecting it if your attic ventilation is incorrect or something else is causing your house or attic to not vent correctly. Condensation in your attic space, home or business can be complicated to repair. It can be similar to a wiring issue in a car: frustrating.

Choosing a Contractor for your Install or Repair

Our Replacement Guarantee – Lifetime Workmanship Guarantee

Our Roofing Portfolio

Request a Skylight Replacement or Roof Repair Estimate
Until next time,
The Team at GRS
General Roofing Systems Canada (GRS)

24 Hour Emergency Roof Repair: Call +1.877.497.3528 toll-free.

British Columbia | Alberta | Saskatchewan | Manitoba | Ontario