How Long Do Roof Shingles Last?

Roof shingles are pivotal for protection against extreme weather conditions in Canada. Apart from protection, they play an integral role in aesthetics, durability, and energy efficiency. The harsh Canadian weather might be making you question the longevity of roof shingles. If yes, then you are at the right place. In this blog, we’ll be addressing the most common concerns regarding roof shingles. So, all you need to do is stay with us till the end to clarify your confusion regarding roof shingles.

Is it ok to put New Shingles over Old Ones?

Yes, you can install new shingles over old ones, but this practice is usually not recommended due to certain factors. Firstly, the roof might not be able to handle the weight strain of new shingles over old ones. Each roof has a weight-bearing capacity, and going beyond it can cause major roof problems.

Secondly, most manufacturers nullify the warranty of new shingles if installed over the old ones. Thirdly, the roofing professional will not be able to inspect the defects in the old shingles because of the new ones lying on top of them. Lastly, it will cost you more money in the long run as the roofing system will deteriorate rapidly because of a poor foundation.

How long do 40-year Shingles Really Last? 

40-year shingles, as the name suggests, are supposed to last for 40 years. However, they will never last you 40 years unless subjected to ideal conditions like limited sun exposure, no wind, and minimal fluctuations in temperature. Maintaining such ideal conditions is practically not possible, especially in Canada, where extreme climate conditions are quite common.

On top of that, the quality of 40-years shingles plays a critical role in their endurance. Shingles made with premium quality materials and adequate manufacturing techniques will last you a few more years than those made with cheap materials and improper manufacturing procedures.

How to Measure a Roof for Shingles?

It is a complex task to measure the roof for shingles. You’ll need to follow a few steps to get the accurate measurements. Start by dividing the roof into individual planes, then measure each plane’s length and width. Then calculate the square footage of each plane by multiplying the length by the width. For example, if a plane’s length is 150 feet while the width is 120 feet, the total area would be 18,000 square feet.

Lastly, sum up the square footage of all planes; ultimately, the value you get is the total measurement of your roof. Taking measurements will be tougher if your roof has intricate designs. So, you can always consult a professional roofing contractor to make the process easier and to get accurate measurements.

How long do Architectural Shingles Last?

Architectural shingles also referred to as laminated or dimensional shingles, are known for their premium quality, attractiveness, and wide range of colour combinations. 25 to 40 years is the average lifespan of architectural shingles. However, as with GAF shingles, the lifespan might vary depending on a few factors.

The climate conditions, warranty, installation practices, maintenance, design, and quality are some of the important factors that might alter the durability of architectural shingles. The best way to make your investment worth every single penny is by consulting the best roofing company in your area. Roofing professionals can guide you better regarding material, quality, longevity, and performance expectations from architectural shingles.

How far should Shingles Overhang the Drip Edge?   

The incorrect overhang of the drip edge is among the top 10 mistakes when it comes to the installation of roofing systems. A drip edge is a metal flashing that leads water into the gutters away from the edge of the roof and gives it a streamlined look. The ideal overhang length for shingles should be ½ inch to ¾ inch past the drip edge.

Your roof contractor must comply with the ideal overhang length to protect the edge of the roof along with the roof deck. If the overhang length is extended beyond the ideal measurements, the shingles get more prone to wind damage.

How long do GAF Shingles Last?

GAF shingles are one the most popular brands of roof shingles in Canada. Their affordability, visual aesthetics, and durability are one of the few reasons for their popularity. Typically, GAF shingles last for 15-25 years. However, the time span is not specific.

It might vary depending on a few factors. The most important is the quality of installation. So, your roofing contractor must be an expert if you want your GAF shingles to last long. In addition to that, the design of GAF shingles, their warranty, maintenance, and weather conditions significantly affect the time span of longevity.

Are 30-year Shingles Worth it?

Whether or not 30-year shingles are worth it depends on your personal requirements and expectations. If longevity is your priority, then a 30-year shingle might be worth it, as they are much more sustainable than their counterparts.

Their durable material makes them resistant to extreme Canadian weather, including heavy snow loads. 30-year shingles are a bit on the pricier side. However, if longevity and durability are your key preference, the investment will be worth it.

How long does it take to put Shingles on the Roof?

The time duration for putting shingles on the roof depends on the size and complexity of the roof. For an average-sized roof, it usually takes 1-3 days to complete the installation. However, complications like critical weather conditions might delay the process. On top of that, the number and experience level of roofing professionals also alters the time needed for shingles installation.

Conclusion

To conclude, we can say that the longevity of roof shingles depends on various factors. From quality and design of material, warranty, and weather conditions to maintenance and installation practices, every factor alters the endurance of roof shingles one way or another. The best way to opt for the most reasonable roof shingles for your residential or commercial buildings is by consulting a professional roofing contractor. In this way, you can easily opt for the ones that meet your personal requirements and expectations.