Everything You Should Know about the Roof on Your Building

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Finding the best commercial roofing company for your building

The structure of a building and the health of the people who occupy it are affected by a roof that leaks. A leaky roof can end up causing quite a bit of damage and eventually the presence of mold in the spring, summer, or fall. Ice that builds up under your roof in the winter can cause damage when the water thaws. You want to keep your roof in good condition so that you can protect your investment, your Vancouver dentist business and the health of your employees.

It is important for you to hire a reputable professional that you know will do the quality work you need and expect, whether you need a repair or a complete roof replacement. Always look for a contractor that is able to meet your financial and time budgets. It is especially important to choose the right contractor since most insurance companies will not cover higher-than-ground level water damage.

We have already compiled a list of the best roofing professionals for the type of work you need. Our reputable contractors are ready to begin work on your roof now.

What options are available for your building?

Whether your roof is slanted or flat, there are many different material options for you to choose from. The following list explains some of your options and discusses the pros and cons of each.

Gravel and bitumen

For many years, gravel and tar have been the standard roofing choice for flat roofs. Although, today better, more preferred roofing options are coming into existence.

  • Pros: This is a popular option. Specific permits are not needed to install this type of roof.
  • Cons: More maintenance over time is required to properly care for this type of roof. Over time, you have to redistribute the gravel because it extends across your roof. The life expectancy of your roof is significantly lower if it is not properly maintained.
  • Lifespan: 15 – 30 years

Elastomeric membrane

The elastomeric membrane is the successor to gravel and bitumen. It is becoming more and more popular for flat roofs. Because of the way it is installed, this roof type is an effective insulator against water. Materials stick right to it. It comes in a big roll and it just melts to your roof. It takes expert installation because of a danger of fire. A special permit is needed to use the torch on your roof. This is why you should always hire trustworthy and experienced contractors, as the integrity and life of your roof is very important

  • Pros: Requires minimal effort and offers a clean finish. No special maintenance is required and it is resistant to high impacts and temperature extremes.
  • Cons: It attracts heat because it is black, although it is available in white at a higher cost. Some believe the lower energy costs will be worth spending the extra now. It is not an environmentally friendly choice, like gravel and bitumen.
  • Lifespan: 25 – 35 years


TPO and EPDM are greener options for flat roofs. The white reflects the sun and therefore lowers your energy bills in warmer weather.

  • Pros: It is not only a cheaper option, but it saves you energy costs over the previously mentioned options. It is also better for the environment.
  • Cons: If a sharp object hits it, it is more likely to tear than the other options because the material is less resistant. In order to preserve this type of roof, you must have it cleaned annually to remove any build up on the surface.
  • Lifespan: 25 – 30 years with proper maintenance


When it comes to sloped roofs, shingles are the most common material. It is a simple, inexpensive, and efficient roofing option for your sloped roof.

  • Pros: Low maintenance, low-cost roofing option. There are also many different colors and styles to choose from.
  • Cons: It only lasts about half that of a sheet metal roof.
  • Lifespan: 20 – 25 years

Sheet metal

Another popular option for sloped roofs is sheet metal. There are many different types of sheet metal, but we are referring to standard roofing grade sheet metal, which is durable and strong, not the more flimsy, foldable sheet metal.

  • Pros: Lasts twice as long as shingles because it is more durable and resistant to damage. It looks more sophisticated than shingles.
  • Cons: Costs higher than shingles.
  • Lifespan: 50 years or more

Green roof

Vegetation on your roof is often a nice-looking addition to your roof. Especially in urban settings, plants and greenery can really break up the monotony of the structures. A green roof is also more functional, as it can double as a terrace for you to spend time enjoying the outdoors. You can add to your living space. Your employees would enjoy taking their break in a well-landscaped garden or terrace. It also serves as good insulation from the sun and extreme temperatures.

  • Pros: Your roof doubles as a garden or terrace, creating more living space. Insulates your roof in the winter to keep your building warm, and protects it from the hot sun in the summer, therefore reducing energy costs year round.
  • Cons: Costs more than other options and requires a significant amount of maintenance.
  • Lifespan: Can last up to 50 years with proper maintenance

When do you need to replace your building’s roof?

You should take a roof renovation seriously. If your roof is damaged in any way, putting off replacement could end up costing you quite a bit of money. Here are some ways to tell if it is time to replace your roof:

  • Your materials are old and look damaged in places
  • You notice water infiltration at the flashings in your roof
  • The roof structure appears to be caving in due to lack of support
  • The frame is damaged because of excess snow and ice
  • The attic has a high moisture content

We can help you get the best price for your roof

Although it may seem like you have a great many roofing choices and comparison seems like a daunting task, we have compiled a list of questions you should ask to get the best roofing job for your building.

  • Should I choose gravel and tar, bitumen, elastomeric, or a TPO or EPDM for a flat roof?
  • Should I choose shingles or metal for a sloped roof?
  • How many years lifespan guarantee do I need for my situation?
  • Should I choose a flat, slanted, or green roof in new construction?
  • Do I live in a climate where I will need de-icing cables or wind and snow shields?
  • What type and how much ventilation is required in my situation?
  • Is weather protection (flashing) required where I live?

The bottom line is to make sure you consult a trustworthy professional who can help guide you through the process of choosing a roof. It is too great an investment to risk working with someone who is dishonest and overcharges you for the work.