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Verdun · Commercial roofing

Commercial Roofing in Verdun

The manager of a commercial, industrial, institutional or mixed-use building in Verdun pays at least $491.70 for a permit to replace the roofing, according to the City of Montreal (October 2026). This fee does not apply to a simple repair of roofing in Verdun, which needs no permit. The material rules depend on the type of roof. A flat roof that is neither white nor green needs a solar reflectance index of at least 78.

01

The fee for these buildings

The rate is the same for everyone, $9.80 per $1,000 of work. The floor depends on the building's use. Whatever the cost of the work, the City charges at least $491.70 for a commercial, industrial, institutional or mixed-use building.

The residential minimum is reserved for strictly residential buildings. The City names mixed-use buildings without defining them. If yours combines a business and dwellings, have its classification confirmed at the permit counter. This fee does not apply to a simple roof repair in Verdun, which needs no permit according to the City.

The estimate used for the calculation must include all costs tied to the work, taxes included. Extra fees may apply if the building or its area has heritage value or is subject to special architectural standards. The fees are non-refundable.

02

Flat roofs get no separate regime

Verdun's flat roof procedure makes no distinction by use. For a replacement, a commercial building faces the same list as a plex, namely a green roof, a white material, a reflective coating, white ballast, or a material with a solar reflectance index of 78.

One detail matters a lot on commercial roofs. The requirement does not apply to the part of the roof taken up by mechanical equipment, such as an air conditioner or a heat pump. It does not apply to a deck either.

03

Sloped roofs, with a list that names commerce

For sloped roofs, the City publishes a list of permitted materials for a Habitation or Commerce type of use, except class C9. The list includes asphalt shingle, copper, enamelled, galvanized or stainless steel, and cedar shingle, along with some imitations.

The identical material rule comes on top of this list. The new covering keeps the format, colour and texture of the original material.

The page does not say what class C9 covers. It also does not say which materials apply to an industrial or institutional use. If your building falls into one of those cases, the permit counter is the only reliable source.

04

What a property manager should plan for

The file is prepared before filing. The City asks for:

  • the quote or a cost estimate grid, taxes included
  • the materials technical data sheet, with the solar reflectance index for a flat roof
  • a power of attorney, if you act on the owner's behalf
  • in a condo, a letter from each co-owner or a resolution of the syndicate

A few practical habits help.

  • Have the borough confirm the building's use. The minimum fee depends on it.
  • Leave room in the schedule. The City page gives no processing time.

The roof inspection is our job, not the building staff's.

FAQ

Frequently asked questions

How much is a permit for a commercial building roof in Verdun?

In Verdun, the City publishes a rate of $9.80 per $1,000 of work, with a minimum of $491.70. That minimum also applies to an industrial, institutional or mixed-use building.

Does a building with a store and apartments pay the residential rate?

No, a mixed-use building does not pay the residential minimum, based on what the City publishes. The residential minimum is for strictly residential buildings. If the classification is unclear, ask the permit counter.

Do air conditioning units change the roof rules?

Partly. On a flat roof, the surface taken up by mechanical equipment is not subject to the white or reflective covering requirement. The City does not say how that surface is measured.

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