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TTC repairing roof of track and structure building in Davisville Yard, starting March 29



Starting “the week of” Monday, March 29, the TTC is repairing the roof of the track and structure building in Davisville Yard. The project does not impact TTC services to passengers.

First, work crews create a safe work zone in the yard, by installing guard rails along the perimeter of the roof. After they’ve set up the safe work zone, they:

  • install new roof flashings along the roof wall;
  • remove old roofing material; and
  • apply new roofing material.

The TTC’s roof supplier may deliver roofing material between 5 and 7 a.m. multiple times during the project.

Crews will control dust as much as possible by fencing off an area for disposal bins and for storing materials.

Crews use an asphalt kettle to apply the asphalt during the first weeks of the project. This method emits a slight odor, but helps prevent any water from entering the building when crews are removing old roof materials, acting as a temporary membrane before the crews install the permanent, three-ply roof membrane.

Crews mostly work Mondays to Fridays from 7 a.m. until 4 p.m. Occasionally, they may work as late as 8 p.m. or Saturdays, if necessary to keep the project on schedule.

TTC crews continue repairing the roof of the building in Davisville Yard until “the end of July”, meaning as late as until July 31.

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