Flat Roof Drainage - Installing, Deleting, and Moving Flat Roof Drains


Roofers Relocating Drains

Flat Roof Drainage

Installing New Drains and Deleting Old Drains for Proper Drainage

General Roofing Systems Canada (GRS) installs, repairs, and maintains flat roofing through-out British Columbia, Alberta, and Saskatchewan. Flat Roofers Calgary, Red Deer, Edmonton, Fort McMurray, Lloydminster, Saskatoon, Regina, Medicine Hat, Lethbridge, Canmore, Cranbrook, Kelowna, Vancouver, Whistler, and points between.

24 Hour Roof Repair: 1.877.497.3528  |  Email: info@grscanadainc.com

Achieving Proper Drainage on a Flat Roof

One of the most common issues with flat roofing is drainage of water and leaky roofs. Making sure you have positive drainage is critical. Locating drains, scuppers, eavestrough, and downspouts strategically can increase the life of your flat roof considerably. Ponding water gets in at the laps, causes roofs to sag from weight, and will ultimately cause leaks. Regular flat roof maintenance is critical also.

Below is a site report from our Lethbridge, Alberta flat roofers conducting maintenance to a roof. The roofers deleted one roof drain on a tar and gravel residential roof and installed a new drain for positive drainage. We thought reporting the process of installing and deleting drains would be helpful to our do-it-yourself customers and facility managers that want a tutorial with photos.

Site Report -Lethbridge - Oct 27/12


5:37 PM (30 minutes ago)

Arrived on site

Primed drop drain and area for it to sit in

Applied plastic cement to roof and drop drain for adhesion

More plastic cement over the drain with a layer of jute and cement on top of that

Mechanically fastened drain to roof for extra support

Filled hole where old drain was originally

Covered it with plastic cement and 2 ply's of jute

Mechanically fastened drain to downspout

Cleaned area and left site


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Article Topics: flat roofing, roof maintenance, roof drains, roof drainage, drain installation, flat roof


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