Services

We service all kinds of commercial and residential roofs. Our team of skilled professional roofers is waiting to hear from you.

The premier roofing company

24 / 7 Emergency Services 1.866.859.7663 (ROOF)

Commericial Roofing Project
New Construction

With more than 50 years roofing experience, Dilmar Group is the correct choice for your next commercial flat roof, or residential roofing project.

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Re-Roofing

Flat roof replacement is a major job that contains complexities that only the best flat roofing companies in the industry understand.  Dilmar Group understands flat roofs and has been providing roof replacement in the GTA for over 50 years.

Flat Roof Repair
Service & Emergency Repairs

Dilmar Group is on call 24/7 to provide Commercial Roof Repair. Whether the situation calls for emergency service or requires the expertise of our team to prevent a future problem you can be sure to count on us to get the job done right. The first time!

Residential Roofing Project
Residential

Dilmar Group services all kinds of residential roofs including wood, slate, flagstone, fibre cement, metal, plastic, and composite asphalt shingles.  Most of our shingle products offer a 25 year to lifetime warranty.

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Custom Metal

Custom metal cladding & ornamental design for use in both commercial and residential applications.  Our custom metal products are available in a wide variety of colors, gauges, and profiles to suit your project.

Commercial Roofing Specialists

Servicing roofs in the Toronto GTA including Mississauga, and Scarborough for over 30 years, Dilmar Group is the correct choice for your next commercial roofing project.

 

Specializing in the service / installation of:
  • Build Up Roofing (BUR)
  • Ethylene Propylene Diene Monomer (EPDM)
  • Themoplastic Polyolefin (TPO)

Request a Quote

You can trust Dilmar Group with your roof.
Call us at 1.866.859.7663 (ROOF)

Built Up Roofing

Build Up Roofing (BUR) – 4 Ply Roofing

A traditional Roofing System. Built up roof is a term for a roof system that is built by adding layers. It is the oldest of the newer methods dating back to the early 1800’s.  Typical BUR systems incorporate a 4-ply application, although different variations and specifications require three to five plies with a top pour and protective surfacing. All systems use either base, #15 felt paper (organic) or Fiberglass felt (inorganic) sheets overlapped in a combination starting at the low points of the roof surface. They are installed using different waterproofing materials such as asphalt, cold application adhesive, and modified asphalt. The final step is a variety of surfacing options using gravel or mineral surface material for UV protectant.

Built Up roofing limits movement with high tensile strength. There is nothing quite like asphalt to make a roof water resistant.

 

Benefits of Commercial Roofing

  • Cost effective

  • Most popular and proven system

  • Easy to maintain and repair

  • Thicker roof membrane making it durable

  • Most durable for high traffic roofs

  • Outstanding performance throughout vast Canadian climates

  • Provides excellent waterproffing and UV protection.

Modified Bitumen

Modified Bitumen (MB) roofing is an asphalt-based, close cousin of the Built-up-Roof (BUR) designed for buildings with low-slope or “flat” roof structures. Engineered modified bitumen roofing membranes originated in Europe in the mid 1960’s and have been used successfully in the United States and Canada since approximately 1975.

Increased resistance to brittleness at cold temperatures, greater flow resistance at high temperatures, and increased elasticity can be achieved by blending synthetic rubberized polymers with asphalt in lieu of modification by the blowing process used for BUR asphalt. There are numerous surfacing options for this system which include a factory applied mineral surface, gravel surface, including “cool roof” coatings which are highly-reflective to save on building cooling costs. Mineral-surfaced MB products are typically furnished with white granules, but are also available in designer colors to match asphalt shingles or to otherwise compliment the building design.

MB gives designers and installers an even broader array of options than BUR. MB may be installed by the torch-application method, or “hot-mopped” like BUR, or applied with “cold-process” adhesives. The latest innovation with MB is the self-adhering sheet. Using special combinations of polymers to modify the underside of the MB sheet, the rolls are manufactured with a release paper. The installer removes the release paper and as the sheet is rolled out, it adheres itself to the substrate. This method eliminates the risks associated with the use of torches, hot asphalt, and is completely free of VOC (volatile organic chemicals) fumes during and after application.

 

Benefits of Modified Bitumen Roofing

  • Proven track record of performance

  • Superior waterproofing characteristics

  • Broad range of application methods

  • Wide choice of top-surfacing, including “Cool Roofing” options

  • High tensile-strength

  • Competitive life-cycle cost

  • Expands with building movement as needed

  • Easy to repair

  • Available with flame-free and VOC-free installation

  • Long-term warranties are available with many MB systems

BUR
BUR

Modified Bitumen

Modified Bitumen (MB) roofing is an asphalt-based, close cousin of the Built-up-Roof (BUR) designed for buildings with low-slope or “flat” roof structures. Engineered modified bitumen roofing membranes originated in Europe in the mid 1960’s and have been used successfully in the United States and Canada since approximately 1975.

Increased resistance to brittleness at cold temperatures, greater flow resistance at high temperatures, and increased elasticity can be achieved by blending synthetic rubberized polymers with asphalt in lieu of modification by the blowing process used for BUR asphalt. There are numerous surfacing options for this system which include a factory applied mineral surface, gravel surface, including “cool roof” coatings which are highly-reflective to save on building cooling costs. Mineral-surfaced MB products are typically furnished with white granules, but are also available in designer colors to match asphalt shingles or to otherwise compliment the building design.

MB gives designers and installers an even broader array of options than BUR. MB may be installed by the torch-application method, or “hot-mopped” like BUR, or applied with “cold-process” adhesives. The latest innovation with MB is the self-adhering sheet. Using special combinations of polymers to modify the underside of the MB sheet, the rolls are manufactured with a release paper. The installer removes the release paper and as the sheet is rolled out, it adheres itself to the substrate. This method eliminates the risks associated with the use of torches, hot asphalt, and is completely free of VOC (volatile organic chemicals) fumes during and after application.

 

Benefits of Modified Bitumen Roofing

  • Proven track record of performance

  • Superior waterproofing characteristics

  • Broad range of application methods

  • Wide choice of top-surfacing, including “Cool Roofing” options

  • High tensile-strength

  • Competitive life-cycle cost

  • Expands with building movement as needed

  • Easy to repair

  • Available with flame-free and VOC-free installation

  • Long-term warranties are available with many MB systems

Commericial Roofing Project

Single Ply Membrane Roofing

 

Themoplastic Polyolefin (TPO)

A single-ply reflective roofing membrane made from polyprophylene and ethylene-propylene rubber polymerized together. It is typically installed in a fully adhered or mechanically attached system, allowing the white membrane to remain exposed throughout the life of the roof.

 

Benefits of TPO

  • Easy to install
  • Lightweight
  • Easy to maintain
  • Light colored roof that reflects the sun’s energy, can assist in the reduction of a building’s cooling costs
  • Material is available in a variety of different sizes and thicknesses

 

Polyvinyl Chloride (PVC)

PVC sheets are produced by calendaring, spread coating or extruding, and typically are reinforced with polyester or glass-fiber mats or scrim. PVC sheets contain plasticizers and stabilizers, as well as other additives to impart flexibility and achieve other desired physical properties. Some membranes are available with nonwoven fleece backing adhered to the underside of the sheet.

 

Ethylene Propylene Diene Monomer (EPDM)

EPDM is a versatile rubber roofing membrane that has been used in the low-slope commercial roofing industry for over a half century. EPDM offers a variety of installation options and numerous long term benefits, such as superior weatherability, exceptional wind uplift resistance, extreme flexibility and more.

 

Benefits of EPDM

  • Easy to install
  • Low maintenance
  • Long lasting
  • Durable and flexible
Residential Roofing Project

Residential Roofing Specialists

Dilmar Group services all kinds of residential roofs including wood, slate, flagstone, fibre cement, metal, plastic, composite and asphalt shingles.  Most of our shingle products offer a 25 year to lifetime warranty.

Shingles

These flat, rectangular shaped elements are vital in protecting your most valuable asset, your home, from what mother nature has to offer. Shingles are the common choice for residential roofing systems. They can be made up of various materials such as wood, slate, flagstone, fibre cement, metal, and plastic but the most common shingle is the composite material known as the asphalt shingle.

We are certified installers of Weather-Tite BP.

 

We service and install

  • Single roofs ranging from 25 years to lifetime
  • Soffit, facia, 5″ & 6″ seamless eaves trough
  • Gutter guards
  • Lifetime steel roofing
  • Custom flashings
  • Cedar roofs
  • Composite roofs
Weather-Tite Certified Roofer GOLD

Request a Quote

You can trust Dilmar Group with your roof.
Call us at 1.866.859.7663 (ROOF)

Commercial Roof Maintenance & Inspection

Regular roof inspections, maintenance, and cleaning can dramatically lower your overall facility costs, emergency requirements, and can prolong the life of your commercial roof.  Dilmar Group recommends inspecting your roof at least twice a year, even more often in areas subjected to high winds, tornadoes, hail, and hurricanes.

Roof Inspection Checklist

Here’s what you should be looking for when you’re up on the roof, in the attic, or on the ground performing an inspection.

  • Visible damage
  • Debris and dirt
  • Color fade or chalking
  • Chimneys, vents, skylights, fascia, drip edges, and decking
  • Interior roofing components, such as rafters and roof trusses, should be inspected for signs of mold, mildew and rot
  • Expansion joints should be checked for excessive movement
  • Interior walls should be inspected for signs of water damage
  • Ceiling should be inspected for signs of moisture
  • Exterior walls should be inspected for signs of moisture
  • Roof edges should be checked for deterioration
  • Discoloration at lap joints
  • Substrate firmness should be evaluated
  • Penetrations should be filled and patched as required
  • Gutters and drainage systems should be cleared
  • Roof-mounted HVAC systems should be checked
  • Surface should be inspected for deposits, ponding, growths, vandalism, and wear and tear
Commericial Roofing Project

Flat Commercial Roof Inspection

Flat roofs are vulnerable to degradation due to weathering and standing water.  Inspect your roof for granular loss, stretching, ponding, holes, punctures, or blisters.  Membrane roofs should be carefully inspected overall to determine their condition.

Sloped Commercial Roof Inspection

Typically sloped roofs are made of asphalt shingles, tiles, slate, or metal.  Inspect the shingles to ensure they are in good shape and free of granular loss, curling, or cupping.  If your roofing material is losing grain or bending, it may be near the end of it’s functional life and will require replacement.

Residential / Sloped Roof Repair
Residential / Sloped Roof Repair

Sloped Commercial Roof Inspection

Typically sloped roofs are made of asphalt shingles, tiles, slate, or metal.  Inspect the shingles to ensure they are in good shape and free of granular loss, curling, or cupping.  If your roofing material is losing grain or bending, it may be near the end of it’s functional life and will require replacement.

Metal Commercial Roof Inspection

Inspect metal roofs for corrosion, oil canning, popped screw heads, loose, bent or damaged panels.  Seams should be checked to ensure that water can’t enter and exposed fasteners should be individually checked to sure proper seals.

Schedule An Inspection

Our crew of licensed roofing installers is ready to come inspect your roof

Emergency Roof Repair

Dilmar Group is one of the premier roofing companies based in the Greater Toronto area. The importance of a roofing system of are often overlooked when it comes to maintenance or unforeseen catastrophe.

Dilmar Group is on call 24/7 to provide Commercial Roof Repair. Whether the situation calls for emergency service or requires the expertise of our team to prevent a future problem you can be sure to count on us to get the job done right. The first time!

Flat Roof Repair

Call Now

You can trust Dilmar Group with your roof.
Call us at 1.866.859.7663 (ROOF)