Minor repairs and maintenance

A permit is not required to repair or maintain your roof (ex. add tar, add gravel).

Major repairs

A permit is required to install or replace the covering on a flat roof or a low sloped roof.

Authorized materials

The following materials and roofing types are authorized:

• green roof 
• white material, material painted white or covered with a heat reflector roof covering or white gravel
• material with a solar reflectance index (SRI) of at least 66
• a combination of these coverings 

If you wish to install a green roof, you must go to the permit counter to submit an application for a permit.
Contact the permit counter to verify the rules applicable to your situation.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

• Règlement d’urbanisme 01-274
• Règlement sur la construction et la transformation de bâtiments 11-018

Minor repairs and maintenance

A permit is not required to repair or maintain your roof (ex. replace a few shingles, add tar).

Major repairs

You need a permit to replace the structure, insulation or cladding of a flat or low-sloped roof.

Authorized materials

Materials required for flat roofs:

• white material, material painted white or covered with a heat reflector roof covering or white gravel
• material with solar reflectance index (SRI) of at least 78, certified by the manufacturer or a professional
• green roof

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

The fees are non-refundable.

Further reading: The cost of a renovation permit

In person

Minor repairs and maintenance

A permit is not required to repair or maintain your roof. In particular, you can:

• replace a few shingles and or add tar
• replace the roof membrane, except if the building has historic value and you change the dimensions of the flashing

If your building is located within the Mount Royal Heritage Site, you must obtain authorization from the borough before you carry out the work. 

Major repairs

A permit is required to replace the roof structure.

Authorized materials

The following materials and roofing types are authorized:

• white material. material painted white or covered with a heat reflector roof covering or white gravel
• material with a solar reflectance index (SRI) of at least 56, certified by the manufacturer or a professional
• green roof
• a combination of these coverings

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace.

If you wish to install a green roof, you must go to the permit counter to apply for a permit.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to repair or maintain your roof (ex. replace a few shingles, add tar).

However, if the insulation or the roof structure is affected, you must obtain a permit.

Major repairs

A permit is required to replace the roof covering or change its structure.

Authorized materials

The following materials are authorized on existing constructions:

• asphalt, fibreglass or real wood shingles
• heat-welded or adhesive membranes 
• metal enamel or painted metal pre-baked in a plant
• tiles made of clay, slate, concrete, fibre or a similar synthetic product specifically designed for a roof covering
• galvanized sheet metal, installed the Canadian way, pinched or “baguette” style (with batten seams)
• copper
• zinc
• green roof
• glass

The following materials are authorized for new constructions:

• material with a solar reflectance index (SRI) of at least 78, certified by the manufacturer or a professional
• a green roof 
• a combination of these roof coverings

These requirements do not apply to the part of the roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

Standards vary based on the total roof area.

Minor repairs and maintenance

A permit is not required to repair or maintain your roof (ex. replace a few shingles, add tar).

However, if the insulation or the roof structure is affected, you must obtain a permit.

Major repairs

A permit is required to install or replace the covering on a flat roof or a low sloped roof.

Authorized materials

You are required to use one of the following new materials on a flat roof with a total area of less than 300 m²:

• slate
• clay tile
• wood shingle
• copper sheet
• asphalt shingle
• pre-enameled roofing sheet
• corrugated concrete roof tile
• asphalt and gravel
• elastomeric membrane
• polyolefin thermoplastic membrane

The following materials and roofing types are authorized on a flat roof with a total area of more than 300 m²:

• white material, material painted white or covered with a heat reflector roof covering or white gravel
• material with a solar reflectance index (SRI) of at least 56, certified by the manufacturer or a professional
• green roof
• a combination of these roof coverings

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to maintain or repair your flat roof. For example, you do not require a permit to:

• carry out minor maintenance work
• replace the roofing membrane

Major repairs

A permit is required to change the insulation or roof structure. For example, you do require a permit to:

• change the slope of the roof
• add mechanical equipment (ex. roof ventilators)
• add a skylight

Authorized materials

The following materials are authorized on new buildings or when there is a change in volume (or slope) on an existing building:

• green roof
• material with a solar reflectance index (SRI) of at least 56, certified by the manufacturer or a professional, including:
• white or pale grey material
• material painted white or pale grey
• material covered with a white or grey reflective coating or ballast
• a combination of these roof coverings

If you wish to install a green roof, you must go to the permit counter to apply for a permit.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to repair or maintain your roof (ex. replace a few shingles, add tar).

However, if the insulation or the roof structure is affected, you must obtain a permit.

Major repairs

A permit is required to install or replace the covering on a flat roof or a low sloped roof.

Authorized materials

Multi-layered roofing systems are authorized, including a layer of asphalt and gravel, on the condition that the cap sheet is made of marble ballast or white gravel.

The following materials and roofing types are authorized:

• green roof
• white material, material painted white or covered with a white reflective coating or ballast
• material with a solar reflectance index (SRI) of at least 78, certified by the manufacturer
• a combination of these coverings

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump), a greenhouse or a terrace.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. professional fees, plans, labour, materials, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

These are analysis fees and are therefore non-refundable.

Further reading: The cost of a renovation permit

Online

Minor repairs and maintenance

A permit is not required to repair or maintain your roof (ex. replace a few shingles, add tar).
However, if the insulation or the roof structure is affected, you must obtain a permit.

Major repairs

A permit is required to install or replace the covering on a flat roof or a low sloped roof.

Authorized materials

The following materials and roofing types are authorized:

• white material, material painted white or covered with a white reflective roof covering or white gravel
• material with a solar reflectance index (SRI) of at least 78 over at least 75 per cent of the roof surface, certified by the manufacturer or a professional
• green roof
• a combination of these coverings

Roof coverings made of asphalt, tar and gravel are prohibited.

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to repair or maintain your roof. In particular, you can:

• replace a few shingles and or add tar
• replace the roof membrane, except if the building has historic value and you change the dimensions of the flashing

However, if the insulation or the roof structure is affected, you must obtain a permit.

Major repairs

A permit is required to:

• carry out work on a roof made of materials other than asphalt
• completely renovate an existing roof
• partially re-cover a roof spanning a total area of 500 m2 or more

Authorized materials

The following materials and roofing types are authorized:

• white material, material painted white or covered with a heat reflector roof covering or white gravel
• material with a solar reflectance index (SRI) of at least 56, certified by the manufacturer or a professional
• green roof 
• a combination of these coverings 

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace.

If you wish to install a green roof, you must go to the permit counter to apply for a permit.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to repair or maintain your roof (ex. replace a few shingles, add tar).

However, if the insulation or the roof structure is affected, you must obtain a permit.

Major repairs

A permit is required to install or replace the covering on a flat roof or a low sloped roof.

Authorized materials

The following materials and roofing types are authorized:

• white material, material painted white or covered with a heat reflector roof covering or white gravel
• material with a solar reflectance index (SRI) of at least 78, certified by the manufacturer or a professional
• green roof 
• a combination of these coverings 

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace.

If you wish to install a green roof, you must go to the permit counter to apply for a permit

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

A permit is required to install or replace the covering on a roof.

Authorized materials

The following materials are authorized on new buildings or when there is a change in volume (or slope) on an existing building:

• white material, material covered with a white reflective coating or ballast
• material with a solar reflectance index (SRI) of 78 or higher over at least 75 per cent of the roof surface, or with an SRI of 66 per cent or higher over the entire roof surface (100 per cent)
• green roof

If you wish to install a green roof, you must go to the permit counter to apply for a permit.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $160.45 for a strictly residential building
• $472.16 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to:

• maintain or repair a sloped roof (replace a few shingles, add tar)
• change an asphalt roof covering or asphalt shingles with identical material

However, you must apply for a permit if you use a different material.

Major repairs

A permit is required to renovate or replace a roof covering made of materials other than asphalt.

Authorized materials

The following materials and types of roofing are authorized:

• light-coloured material or material covered with a reflective coating or a pale-coloured ballast with a solar reflectance index (SRI) of at least 66, certified by the manufacturer or a professional
• a green roof
• a combination of these roof coverings

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace.

If you wish to install a green roof, you must go to the permit counter to apply for a permit.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

You do not need a permit to: 

• repair or replace asphalt roofing or asphalt shingles if you use a material similar to the original material 

You need a permit to:

• repair or replace asphalt roofing or asphalt shingles using a material different from the original material 
• replace a roof using materials other than asphalt 

Authorized materials

The following materials and roofing types are authorized:

• white material, material painted white or covered with a heat reflector roof covering or white gravel
• material with a solar reflectance index (SRI) of at least 78, certified by the manufacturer or a professional
• green roof 
• a combination of these coverings

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace.
If you wish to install a green roof, you must go to the permit counter to apply for a permit.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to repair or maintain your roof (ex. replace a few shingles, add tar).

However, if the insulation or the roof structure is affected, you must obtain a permit.

Major repairs

A permit is required to install or replace the covering on a flat roof or a low sloped roof.

Authorized materials

The following materials and roofing types are authorized:

• white material, material painted white or covered with a heat reflector roof covering or white gravel
• material with a solar reflectance index (SRI) of at least 78, certified by the manufacturer or a professional
• a green roof
• a combination of these coverings

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace.
If you wish to install a green roof, you must go to the permit counter to apply for a permit.

Prohibited materials

Tar and white gravel roofs are prohibited on new buildings.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to repair or maintain your roof (ex. replace a few shingles, add tar).

However, if the insulation or the roof structure is affected, you must obtain a permit.

Major repairs

A permit is required to install or replace the covering on a flat roof or a low sloped roof.

Authorized materials

The following materials and roofing types are authorized:

• white material, material painted white or covered with a heat reflector roof covering or white gravel
• material with a solar reflectance index (SRI) of at least 66, certified by the manufacturer or a professional
• green roof 
• a combination of these coverings 

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace. 

If you wish to install a green roof, you must go to the permit counter to apply for a permit. You can also apply online.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

In person

Minor repairs and maintenance

A permit is not required to maintain or repair your roof covering if the total cost of the work does not exceed $3,000 and if the roof structure is not affected.

Major repairs

A permit is required to install or replace the covering on a flat roof or a low sloped roof.

Authorized materials

On residential buildings, authorized materials are those that are permitted under the building code.

For new constructions and non-residential buildings (commercial, industrial, mixed-use), the following material are authorized when installing or replacing a flat roof or a sloped roof:

• white material, material painted white or covered with a heat reflector roof covering or white gravel
• material with a solar reflectance index (SRI) of at least 78, certified by the manufacturer or a professional
• green roof
• a combination of these coverings 

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to repair or maintain your roof (ex. replace a few shingles, add tar).

Major repairs

A permit is required to install or replace the covering on a flat roof or a low sloped roof.

Authorized materials

The following materials and roofing types are authorized:

• Green roof 
• White material or material painted white, or covered with heat reflector roof coating or white ballast
• Material with a solar reflectance index (SRI) of at least 78, certified by the manufacturer or a professional
• A combination of these coverings

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace.

If you wish to install a green roof, you must go to the permit counter to apply for a permit.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to perform minor and occasional repairs. For example, you can repair a crack or hole in your roof covering without a permit, provided that no more than half of the roof surface is being repaired.

Major repairs

A permit is required to install or replace the covering on a flat roof or a low sloped roof.

Authorized materials

The following materials and roofing types are authorized:

• white material, material painted white or covered with a white reflective roof covering or white gravel
• material with a solar reflectance index (SRI) of at least 78, certified by the manufacturer or a professional
• green roof
• a combination of these coverings

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace.

Work that aims to preserve or restore the original appearance of an architectural characteristic is preferred.

If you wish to install a green roof, you must go to the permit counter to apply for a permit. You cannot apply online.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

The fees are non-refundable.

Further reading: The cost of a renovation permit

Minor repairs and maintenance

A permit is not required to repair or maintain your roof (ex. replace a few shingles, add tar).

Major repairs

A permit is required to install or replace the covering on a flat roof or a low sloped roof.

Authorized materials

The following materials and roofing types are authorized:

• white material, material painted white or covered with a heat reflector roof covering or white gravel
• material with a solar reflectance index (SRI) of at least 66, certified by the manufacturer or a professional
• green roof
• a combination of these coverings

These requirements do not apply to the part of a roof occupied by mechanical equipment (ex. air conditioner, heat pump) or a terrace.

If you wish to install a green roof, you must go to the permit counter to submit an application for a permit.

Permit fees

Processing fees for permit applications vary based on the projected cost of the work. You must pay $9.80 for every $1,000 of work.

Regardless of the amount of work, you will be required to pay a minimum:

• $161 for a strictly residential building
• $473 for a commercial, industrial, institutional or mixed-use building

The projected costs must include all fees associated with the work (ex. plans, labour, equipment), taxes included.

Additional fees may apply if your building or the area in which it is located has historic value or is subject to specific architectural standards.

The fees are non-refundable.

Further reading: The cost of a renovation permit