Progressive Consulting Maintenace Solutions

Maintenance guide to avoid sudden flat roof repair

Flat roofs are those with a pitch of less than 15 degrees. They can essentially have a long life span, but only if they are correctly maintained. Life span will also be dependent on the flat roof materials used and you will generally find that Single Ply roofing systems are less durable compared to other materials such as asphalt-based or mod bit 2-Ply membrane roofing systems and assembly’s.

Prevent your roof from damage

To prevent your roof from damage Progressive Consulting Solutions will assist to carry out Flat Roof Asset Management plan on a regular basis for every Spring and or Fall, or following heavy weather conditions. Flat roofs traditionally built from felts can be more vulnerable to splitting, blistering, ponding and felt movement. PCS has put together a short guide to these issues and what we can do to prevent substantial damage through regular flat roof maintenance building/client specific.


Flat roof repair resulting from ‘Splitting’

Splitting can be caused by freeze thawing cycles, stress or pressure, water ponding or simply poor workmanship. It can be that the surface has not been cared for appropriately and solar-reflective paint or stones have not been maintained, or the surface has been damaged due to high traffic or trade damage. Trained professionals easily identify issues and offer localized repair or maintenance methods.



Industry Links & Resources

          Additional Helpful links



ICM Management (ICM)

National roofing Contractors Association (NRCA)

Roof Consultants Institute (RCI)

Single Ply Roofing Industry (SPRI)

Roof Coatings Manufactures Association (RCMA)

Canadian Roofing Contractors Association(CRCA)

Edmonton Construction Association (ECA)

Construction Specification Canada (CSC)

Canadian Asphalt Manufactures Association (CASMA)

Canadian Standards Association (CSA)

Alberta Allied Roofing Association (AARA)



Flat roof repair resulting from ‘Ponding’

Ponding will show as standing pools of water that do no drain. Or in dry conditions you will notice an area with a water mark surrounding lower profiles. If ponding occurs on the edge of your roof then we can install scuppers to remove the excess water.

PCS will investigate fitting drains or ideally having the lower areas built up to stop the ponding altogether. Its at the initial design stage of the roof, that a slope should be considered to promote positive flow to the drains. This method can also be achieved in the rehabilitation process as well. Simply by introducing sloped (EPS) Expanded Polystyrene tapered insulation packages or crickets and diamonds on the roofs profile.         


Flat roof repair resulting from ‘Blistering’

Blistering happens when air is trapped between the layers of felt or the felt substrate. When the air heats up, it causes air pockets to become in an uplifting or bulging profile which can lead to punctures when the blister breaks. Particularly if it is a larger blister and located on a join. If this happens then water can pass through the roof. The area will need to be cleaned and fixed professionally to ensure a waterproof seal is maintained without the presence of moisture or ingress of water.