The Great Canadian Roof Doctor


Toll Free Call


Frequently Asked Questions

A roof coating is a protective layer applied to the surface of a roof to enhance its durability, waterproofing capabilities, and longevity. It is usually a liquid material that forms a seamless, weather-resistant barrier when it dries and cures.

There are various types of roof coatings available, including acrylic, silicone, polyurethane, asphalt-based, and elastomeric coatings. Each type has its specific characteristics and applications.

Roof coatings offer several benefits, including:

  1. Enhanced waterproofing and protection against leaks.
  2. Reflective properties that help reduce heat absorption and energy costs.
  3. Increased UV resistance, which extends the life of the roof.
  4. Protection against weathering and environmental damage.
  5. Cost-effective alternative to roof replacement.

Environmentally friendly, as they can extend the life of existing roofs, reducing waste.

The frequency of roof coating reapplication depends on the type of coating used, the climate in the area, and the roof’s condition. Generally, roof coatings can last anywhere from 5 to 20 years. Regular inspections should be conducted to assess the coating’s condition, and reapplication may be necessary if signs of wear or deterioration are observed.

Roof coatings can be applied to a wide range of roof materials, including metal, asphalt shingles, concrete, single-ply membranes, and more. However, not all coatings are suitable for every roof type, so it’s crucial to select a coating compatible with the roof material for optimal performance.

Roof coatings can provide some degree of repair for minor damages, such as small cracks and leaks. However, significant structural issues or extensive damage may require more extensive repairs or even roof replacement. Roof coatings are best used as a preventive measure or to extend the life of a well-maintained roof.

Are roof coatings environmentally friendly? A: Many roof coatings are formulated to be environmentally friendly. They can help reduce energy consumption by reflecting sunlight and reducing heat absorption, which, in turn, can lower the demand for air conditioning. Additionally, roof coatings can extend the life of existing roofs, reducing the amount of waste generated from roof replacements.

Yes, roof coatings can improve energy efficiency by reflecting sunlight and reducing the amount of heat absorbed by the roof. This reflective property can help keep the building cooler, reducing the need for air conditioning and ultimately lowering energy costs.

The weather conditions during roof coating application can impact the coating’s effectiveness and curing process. Some coatings may require specific temperature and humidity ranges for proper adhesion and drying. It’s essential to follow the manufacturer’s guidelines and avoid applying coatings during adverse weather conditions, such as rain or extreme temperatures.

Power washing a roof can be effective for cleaning and removing debris, moss, and algae that can accumulate over time. However, it’s essential to exercise caution and follow proper safety guidelines when using a power washer on a roof. Here are some factors to consider:

  1. Roof type: Power washing is generally suitable for asphalt shingle roofs and metal roofs. However, for more delicate materials like slate, clay tiles, or wood shingles, it can cause damage. Always check the manufacturer’s guidelines or consult a professional before using a power washer on your specific roof type.
  2. Pressure setting: Use a low-pressure setting on the power washer to avoid damaging the roof’s surface. High pressure can lift shingles, erode protective granules, and create leaks.
  3. Angle and distance: Hold the nozzle of the power washer at a slight angle and keep a safe distance from the roof surface to prevent water from being forced under the shingles.
  4. Safety gear: Wear appropriate safety gear, including non-slip shoes, safety goggles, and a harness if necessary. Working on a roof can be hazardous, so always prioritize safety.
  5. Structural integrity: Ensure the roof is in good condition before power washing. If there are any pre-existing leaks or weaknesses, power washing could exacerbate the problem.
  6. Professional assistance: If you’re unsure about power washing your roof or if it requires extensive cleaning, consider hiring a professional roof cleaning service. They have the expertise and equipment to do the job safely and effectively.
  7. Landscaping protection: Cover or wet down any plants, shrubs, or sensitive landscaping near the roof to protect them from potential damage caused by the cleaning solution or runoff.

Remember, power washing should be performed with care and knowledge. If you’re not confident in your abilities or if you have concerns about the safety of power washing your roof, it’s best to seek professional assistance. Regular roof maintenance, such as clearing debris and cleaning gutters, can help prevent the need for extensive power washing in the first place

The cost-effectiveness of roof waterproofing coating as an alternative to re-roofing depends on several factors, including the condition of your existing roof, the type of coating used, and your long-term goals for the property. Let’s examine both the advantages and potential drawbacks:

Advantages of Roof Waterproofing Coating:

  1. Cost Savings: Roof waterproofing coatings can be significantly cheaper than a full roof replacement. Re-roofing involves removing the old roof and installing a new one, which can be a major expense.
  2. Quick Application: Applying a waterproof coating is generally faster and less disruptive than a complete re-roofing process. It may not require you to vacate the premises or temporarily relocate during the work.
  3. Extended Roof Lifespan: A high-quality waterproof coating can extend the life of your existing roof by providing an additional layer of protection against weathering, UV rays, and water damage.
  4. Energy Efficiency: Some coatings offer reflective properties that can help reduce heat absorption, leading to lower energy bills for cooling during hot weather.
  5. Environmentally Friendly: By opting for a coating instead of re-roofing, you may contribute to reducing waste generation as the old roof doesn’t need to be removed and disposed of.

Drawbacks of Roof Waterproofing Coating:

  1. Limited Effectiveness on Severely Damaged Roofs: If your roof is in poor condition with significant structural damage or extensive leaks, waterproofing coating may not be sufficient to address these issues adequately.
  2. Maintenance Requirements: Roof coatings may require periodic maintenance and reapplication over time to maintain their effectiveness.
  3. Compatibility Issues: Not all roofs are suitable for coating. Some roofing materials may not be compatible with certain waterproofing products.
  4. Expert Application Required: To ensure the effectiveness of the coating, it must be applied correctly. Improper application may lead to subpar results.

In summary, if your existing roof is in relatively good condition and you want to prolong its life while reducing immediate costs, roof waterproofing coating can be a reasonable alternative to re-roofing. However, it’s essential to have a professional roof inspection and consult with experts to determine if your roof is a suitable candidate for coating and to choose the right type of coating for your specific roof material and climate conditions. Keep in mind that while coating can provide short to medium-term benefits, it might not eliminate the need for a roof replacement in the long run.

Our Basic Process

  1. Initial Contact: Customers reach out to “The Great Canadian Roof Doctor” through various channels, such as phone calls, website inquiries, or referrals.
  2. Inspection and Assessment: A trained roofing professional from the company visits the customer’s property to assess the roof’s condition. They inspect for damage, leaks, missing shingles, or any other issues.
  3. Proposal and Estimate: Based on the inspection, the roofing expert provides a detailed proposal outlining the recommended roofing waterproofing coatings, repairs and or replacements and the associated costs. They may also discuss potential roofing materials and any warranties offered.
  4. Scheduling: If the customer agrees to the proposal, the company schedules a convenient time to begin the cleaning process, roof repair, waterproofing coatings, or replacement roof project.
  5. Roof cleaning, Roof Repair, Roof Coatings, or Replacement: On the scheduled date, the roofing crew arrives at the property with the necessary equipment and materials. They commence the roof cleaning, roof repair, roof waterproofing coatings, or replacement following industry-standard practices and safety protocols.
  6. Quality Workmanship: The roofing team ensures that the work is completed with attention to detail, making sure the roof is structurally sound and aesthetically pleasing.
  7. Clean-up: After finishing the work, the crew cleans up the job site, removing any debris and ensuring the property is left in a tidy condition.
  8. Inspection and Approval: The roofing team may conduct a final inspection to confirm the work’s quality and seek approval from the customer.
  9. Warranty: “The Great Canadian Roof Doctor” provides a warranty for their work, guaranteeing their services and materials for a specified period. This warranty ensures that the customer can contact the company if any issues arise within the covered timeframe.

Customer Satisfaction: The Great Canadian Roof Doctor strives for customer satisfaction, addressing any concerns or questions the customer might have during or after the project.


Then please feel free to contact us and we would be please to help answer your questions.