FAQs

We are Renewall.
Calgary and Area Renovation & Restoration Experts

Frequently Asked Questions/

How long will my new roof last?

Laminated asphalt shingles last approximately 30 years under normal conditions. Unfortunately there are a number of factors that may accelerate the deterioration of your shingles so not every roof can expect the same service life. Other types of roofing such as metal or rubber can last up to 50 years.

What factors will accelerate the deterioration of asphalt shingles?
  1. Orientation – A south facing roof slope will always wear out faster than the other slopes because it receives more direct sunlight and heat. West facing slopes wear out second fastest with the East and North slopes lasting the longest.
  2. Ventilation – An inadequately vented roof can dramatically increase the temperature in the attic which will then increase the temperature of the shingles. Prolonged exposure to high heats will accelerate the aging process of asphalt shingles.
  3. Pitch – The steeper the pitch, the longer the shingles will last. Alternatively, shingles installed on low slopes will deteriorate at a much higher rate. Most shingle manufacturers prohibit the installation of their shingles on pitches less than 2:12.
  4. Debris – Asphalt shingles perform best when they are clean and clear. Overhanging trees can deposit leaves, pine needles and small branches onto the roof. When it rains the debris on the roof retains water, much like a sponge, and this in turn keeps the shingles wet for an extended period of time. Asphalt shingles are designed to shed water not hold water. Exposing asphalt shingles to standing water for excess periods of times will accelerate their deterioration.
  5. Hail – Most asphalt shingles can withstand hail stones up to 1”-1 ½” in diameter. Hail stones that are bigger than 1 ½” can cause fractures, bruises and punctures in the shingle causing it to lose its water shedding ability.
What is drip edge?

Drip edge is a flashing that is installed on the eaves of your roof. It has two purposes. First, it helps protect the wooden roof deck from water. This in turn prevents wood rot and lengthens the service life of your roof deck. Second, it helps steer water that is shed from the roof directly into the eavestrough preventing annoying drips and potential icy spots in the winter and spring.

What is felt or underlayment?

Underlayment is a second layer of protection for your roof. Organic felt paper (also called tar paper) was the standard for many years however new synthetic underlayments are now more common. Underlayments are installed directly to the roof deck before the shingles are applied.

What is ice & water shield?

Ice & water shield is an adhesive, granulated underlayment that is typically installed on the eaves, valleys and in low slope sections of a roof. It offers a much greater level of protection than standard underlayments.

Will my old shingles be recycled?

Yes, shingle recycling is readily available at many landfills and recycling depots in Southern Alberta. Not only is it better for the environment, it’s also less expensive.

Are there any hidden costs I should be aware of?

Sometimes there is rotten wood on the roof deck or framing that cannot be seen until the shingles have been removed. If the wood rot is severe enough it will need to be replaced in order for the shingles to be fastened properly. Wood rot is common on about 10% of roofs and usually costs less than $200 to fix.

What does the manufacturer’s warranty cover?

Most manufacturers’ warranties cover product defects only. They don’t typically guarantee how long the product will last. For example, many shingles have a lifetime warranty. This doesn’t mean they will last a lifetime (they most certainly will not) it just means that if a defect is present within your lifetime they will replace the defective product.

What does your workmanship warranty cover?

Our workmanship warranty covers materials and labour to fix any workmanship related issue up to 5 years.

Which roofing product should I choose?

Choosing the right product depends on a number of factors. How long are you going to live in the home? How steep is your roof? What is your budget? The most common and most economical roofing product is laminated asphalt shingles. Products like metal, rubber and tile can last much longer but also come with a higher price tag.

Will the colour of my roof affect its performance?

Yes, darker colours typically wear out faster than lighter colours. Lighter colours also tend to stay cooler resulting in a more comfortable home in the summer time and lower air conditioning costs.

How long does vinyl siding last?

Vinyl siding can last for decades, in fact many manufacturers offer lifetime warranties. Most people don’t change their siding unless they want to update the look of their home or unless it is damaged by an external factor like hail.

Does vinyl siding fade?

Eventually all vinyl siding products will fade but it usually isn’t noticeable for 10-15 years. South facing walls fade the quickest and darker colours will fade more dramatically than lighter colours. Many manufacturers add fade resistant properties to their siding and warranty against fading for up to 15 years.

Do I need felt paper or Tyvec behind my siding?

Yes, some type of home wrap is required with all siding. Most siding is not water proof; it is simply a weather deflector. It is common, even expected, that some moisture will work its way behind the siding. The tar paper or Tyvec will then prevent this moisture from entering the home.

Why should I replace my windows?

The biggest reason is energy loss. Poorly sealed windows can account for 25% of a home’s energy loss. Also, the seals in a window will eventually fail. This leads to condensation build up between the two panes of glass.

Should I choose vinyl, wood or aluminum?

Vinyl windows are inexpensive, energy efficient and low maintenance. They don’t require painting like wood and won’t dent in hail storms like aluminum. The have a very good insulating value and are resistant to moisture. Vinyl windows are the best option for most residential applications.

What is Low-E glass?

Low-E is short for low-emissivity. Emissivity measures the rate which a glass surface transfers radiant heat.

What is Argon gas?

Argon gas is an inert, non-toxic gas that is heavier than air. It provides better insulation and sound proofing than air and reduces the possibility of condensation and frost.

Is triple pane glass that much better than double pane glass?

Yes, double pane glass has an approximate R-value of 4 while triple pane glass has an approximate R-value of 6. With the addition of argon gas and low-E coatings the R-value can be increased even further. Triple pane glass offers an increased R-value of 50% or more for only 15% more cost.

How do solar panels work?

In simple terms, solar panels work by allowing photons (particles of light) to knock electrons free from atoms. This generates a flow of electricity.

What are photovoltaics?

“Photo” means light and “voltaic” mean electricity. Basically, the word photovoltaic refers to the generation of electricity through light. It is often called PV for short.

Is Canada too far north for solar power to be effective?

Absolutely not! In fact, most of Canada has excellent solar potential especially in Southern parts of Alberta, Saskatchewan and Manitoba.

Are Canadian winters too cold for solar production?

It’s actually quite the opposite – solar panels perform better at colder temperatures. In fact, the efficiency of a solar panel increases almost half a percent for each degree Celsius decrease. That means a solar panel in -30 C is performing approximately 20% better than a solar panel at +10 C.

How long will it take to pay off my solar system?

Right now it takes about 15-20 years before the savings you earn from your solar system will equal the initial cost of the system. Of course, this payback period shortens as the price of electricity increases.

How long do solar panels last?

The standard warranty for solar panels is 25 years, however, many panels have been known to last 30, even 40 years. Solar panels degrade over time though, so that means a 30 year old panel will not produce the same amount of power as a brand new panel.

Frequently Asked Questions

How long will my new roof last?

Laminated asphalt shingles last approximately 30 years under normal conditions. Unfortunately there are a number of factors that may accelerate the deterioration of your shingles so not every roof can expect the same service life. Other types of roofing such as metal or rubber can last up to 50 years.

What factors will accelerate the deterioration of asphalt shingles?
  1. Orientation – A south facing roof slope will always wear out faster than the other slopes because it receives more direct sunlight and heat. West facing slopes wear out second fastest with the East and North slopes lasting the longest.
  2. Ventilation – An inadequately vented roof can dramatically increase the temperature in the attic which will then increase the temperature of the shingles. Prolonged exposure to high heats will accelerate the aging process of asphalt shingles.
  3. Pitch – The steeper the pitch, the longer the shingles will last. Alternatively, shingles installed on low slopes will deteriorate at a much higher rate. Most shingle manufacturers prohibit the installation of their shingles on pitches less than 2:12.
  4. Debris – Asphalt shingles perform best when they are clean and clear. Overhanging trees can deposit leaves, pine needles and small branches onto the roof. When it rains the debris on the roof retains water, much like a sponge, and this in turn keeps the shingles wet for an extended period of time. Asphalt shingles are designed to shed water not hold water. Exposing asphalt shingles to standing water for excess periods of times will accelerate their deterioration.
  5. Hail – Most asphalt shingles can withstand hail stones up to 1”-1 ½” in diameter. Hail stones that are bigger than 1 ½” can cause fractures, bruises and punctures in the shingle causing it to lose its water shedding ability.
What is drip edge?

Drip edge is a flashing that is installed on the eaves of your roof. It has two purposes. First, it helps protect the wooden roof deck from water. This in turn prevents wood rot and lengthens the service life of your roof deck. Second, it helps steer water that is shed from the roof directly into the eavestrough preventing annoying drips and potential icy spots in the winter and spring.

What is felt or underlayment?

Underlayment is a second layer of protection for your roof. Organic felt paper (also called tar paper) was the standard for many years however new synthetic underlayments are now more common. Underlayments are installed directly to the roof deck before the shingles are applied.

What is ice & water shield?

Ice & water shield is an adhesive, granulated underlayment that is typically installed on the eaves, valleys and in low slope sections of a roof. It offers a much greater level of protection than standard underlayments.

Will my old shingles be recycled?

Yes, shingle recycling is readily available at many landfills and recycling depots in Southern Alberta. Not only is it better for the environment, it’s also less expensive.

Are there any hidden costs I should be aware of?

Sometimes there is rotten wood on the roof deck or framing that cannot be seen until the shingles have been removed. If the wood rot is severe enough it will need to be replaced in order for the shingles to be fastened properly. Wood rot is common on about 10% of roofs and usually costs less than $200 to fix.

What does the manufacturer’s warranty cover?

Most manufacturers’ warranties cover product defects only. They don’t typically guarantee how long the product will last. For example, many shingles have a lifetime warranty. This doesn’t mean they will last a lifetime (they most certainly will not) it just means that if a defect is present within your lifetime they will replace the defective product.

What does your workmanship warranty cover?

Our workmanship warranty covers materials and labour to fix any workmanship related issue up to 5 years.

Which roofing product should I choose?

Choosing the right product depends on a number of factors. How long are you going to live in the home? How steep is your roof? What is your budget? The most common and most economical roofing product is laminated asphalt shingles. Products like metal, rubber and tile can last much longer but also come with a higher price tag.

Will the colour of my roof affect its performance?

Yes, darker colours typically wear out faster than lighter colours. Lighter colours also tend to stay cooler resulting in a more comfortable home in the summer time and lower air conditioning costs.

How long does vinyl siding last?

Vinyl siding can last for decades, in fact many manufacturers offer lifetime warranties. Most people don’t change their siding unless they want to update the look of their home or unless it is damaged by an external factor like hail.

Does vinyl siding fade?

Eventually all vinyl siding products will fade but it usually isn’t noticeable for 10-15 years. South facing walls fade the quickest and darker colours will fade more dramatically than lighter colours. Many manufacturers add fade resistant properties to their siding and warranty against fading for up to 15 years.

Do I need felt paper or Tyvec behind my siding?

Yes, some type of home wrap is required with all siding. Most siding is not water proof; it is simply a weather deflector. It is common, even expected, that some moisture will work its way behind the siding. The tar paper or Tyvec will then prevent this moisture from entering the home.

Why should I replace my windows?

The biggest reason is energy loss. Poorly sealed windows can account for 25% of a home’s energy loss. Also, the seals in a window will eventually fail. This leads to condensation build up between the two panes of glass.

Should I choose vinyl, wood or aluminum?

Vinyl windows are inexpensive, energy efficient and low maintenance. They don’t require painting like wood and won’t dent in hail storms like aluminum. The have a very good insulating value and are resistant to moisture. Vinyl windows are the best option for most residential applications.

What is Low-E glass?

Low-E is short for low-emissivity. Emissivity measures the rate which a glass surface transfers radiant heat.

What is Argon gas?

Argon gas is an inert, non-toxic gas that is heavier than air. It provides better insulation and sound proofing than air and reduces the possibility of condensation and frost.

Is triple pane glass that much better than double pane glass?

Yes, double pane glass has an approximate R-value of 4 while triple pane glass has an approximate R-value of 6. With the addition of argon gas and low-E coatings the R-value can be increased even further. Triple pane glass offers an increased R-value of 50% or more for only 15% more cost.

How do solar panels work?

In simple terms, solar panels work by allowing photons (particles of light) to knock electrons free from atoms. This generates a flow of electricity.

What are photovoltaics?

“Photo” means light and “voltaic” mean electricity. Basically, the word photovoltaic refers to the generation of electricity through light. It is often called PV for short.

Is Canada too far north for solar power to be effective?

Absolutely not! In fact, most of Canada has excellent solar potential especially in Southern parts of Alberta, Saskatchewan and Manitoba.

Are Canadian winters too cold for solar production?

It’s actually quite the opposite – solar panels perform better at colder temperatures. In fact, the efficiency of a solar panel increases almost half a percent for each degree Celsius decrease. That means a solar panel in -30 C is performing approximately 20% better than a solar panel at +10 C.

How long will it take to pay off my solar system?

Right now it takes about 15-20 years before the savings you earn from your solar system will equal the initial cost of the system. Of course, this payback period shortens as the price of electricity increases.

How long do solar panels last?

The standard warranty for solar panels is 25 years, however, many panels have been known to last 30, even 40 years. Solar panels degrade over time though, so that means a 30 year old panel will not produce the same amount of power as a brand new panel.

Our Services

From Roofing to siding, to painting, renovations, windows, doors, skylights and additions, we do it all. See our list of services we offer.

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View some of our past projects in our gallery page. See the difference before and after Renewall!

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