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Anjou · Commercial roofing

Commercial Roofing in Anjou

On the flat roof of a warehouse, a store or a house, Anjou imposes the same choice according to the City of Montreal (October 2026), namely white, a green roof or a solar reflectance index (SRI) of at least 78. The City procedures for roofing in Anjou make no difference between a commercial building and a house, and they say no permit is required to repair or replace a roof. For a commercial, industrial or mixed-use building, everything else is confirmed at the permit counter.

01

What the data says, and for whom

The two City pages address the reader without naming the building's use. Nothing there says the rule changes for a store, a warehouse or a mixed-use building. Nothing says it stays the same either.

Take what follows as the starting point, the one that applies to roofing in Anjou in general, and have it confirmed for your building.

  • No permit is required to repair, maintain, renovate or replace a flat or low-slope roof. The sloped roof procedure says the same.
  • Only three coverings are allowed on flat roofs. The first is a material that is white, painted white, or covered with a reflective coating or white gravel. The second is a material with an SRI of at least 78, confirmed by the manufacturer's specifications. The third is a green roof.
  • No permit fee and no list of documents is published for roofing.
02

Why the counter matters more here

A commercial or industrial building raises questions the City page does not cover for Anjou.

Rooftop units. Air conditioning, ventilation and heat pumps often crowd a commercial roof. The procedure consulted has no written exception for the part of the roof they occupy, and it does not say whether replacing or moving them needs approval.

Structure and insulation. A commercial replacement is often the moment to add insulation or correct drainage slopes. The page does not say whether that work stays permit-free.

Mixed use. A commercial ground floor under apartments is not mentioned in the City procedures for Anjou.

The Anjou permit counter is at 7171, rue Bombardier, 2nd floor, and receives by appointment only.

03

What a property manager should plan for

With no permit, nobody keeps the file for you. Build it yourself.

  1. The specification. Have the roofing system described layer by layer, with the finishing product named.
  2. Proof of compliance. Require the manufacturer's data sheet showing the SRI, or a statement of a white finish or a green roof.
  3. The licence. A construction contractor must hold a licence from the Régie du bâtiment du Québec. Ask us for our licence number and check it in the public register, as with any contractor.
  4. Occupants. If tenants are affected, reread your leases and consult a legal adviser if needed.
  5. Insurance. Ask your insurer what it wants to see before and after the work.
04

Maintenance between replacements

According to the City, maintenance and repairs also need no permit in Anjou. Building staff can report a leak, a ceiling stain or the sound of water, but for the inspection up top, ask us to come.

You can ask us from this site for a quote on a commercial building located in Anjou.

FAQ

Frequently asked questions

Does a commercial building need a permit to redo its roof in Anjou?

The City procedures say no permit is required in Anjou, without distinguishing the building's use. Those procedures do not mention commercial buildings. Have the answer confirmed by the permit counter.

Does the materials list apply to a warehouse?

In Anjou, the materials list targets "flat roofs" and excludes no type of building. Nothing in the text exempts a warehouse or a plant from the rule. The permit counter can confirm.

Can the area under ventilation units stay dark?

The City page has no written exception on this for Anjou. Ask the counter before finalizing the specification.

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