Modified Bitumen Roofing Options Compared

SBS roofing in Calgary offers durable and weather-resistant solutions for both residential and commercial properties. Renowned for its excellent elasticity and impact resistance, SBS roofing thrives in Calgary’s punishing climate.

At Angel’s Roofing, our expert technicians install SBS systems with accuracy, providing you with durable protection and insulation. Count on our quality craftsmanship and innovative materials.

Reach out to us today to find out more or get a free quote.

Understanding Modified Bitumen

Modified bitumen is an asphalt-based roofing membrane enhanced with modifiers. One of the main polymers involved in this mix is SBS (styrene-butadiene-styrene), a polymer that adds extra softness and durability to the product, which is well-suited to Calgary’s extreme climate. SBS modified bitumen is one of the most customizable roof types out there. This flexibility allows it to accommodate both residential and commercial needs.

The system itself is multilayered, durable, and weather-resistant. It usually features a base sheet, a reinforcement layer for durability, and a cap sheet that serves as the protective seal. On low-slope roofs, no less than two sheets – a base and a cap – are required to form a strong, waterproof membrane.

Although they contain one base sheet, these systems can be multi-layered depending on their design and purpose.

Modified bitumen is excellent for waterproofing and protection against environmental stressors. Its key attributes include:

• High resistance to water penetration, minimizing leaks.
• Strong UV resistance to prevent degradation from sunlight.
• It’s durable in the face of weather extremes, such as heavy snow, hail, and wind.
• Flexibility in varying temperatures, reducing cracking or splitting.
• Longevity, with lifespans often exceeding 30 years.

Installation is flexible, as modified bitumen systems can be installed in a variety of climate conditions, enabling year-round roofing. SBS membranes are easy to install and maintain, providing a convenience factor to property owners.

In addition, manufacturers frequently offer 10 to 30-year warranties.

SBS Roofing Deep Dive

SBS (Styrene-Butadiene-Styrene) roofing is a flexible, strong type of modified bitumen. It’s designed to withstand the most extreme weather conditions, a perfect choice for Calgary’s frigid winters and hot summers. This flexibility is a result of SBS’s aptitude to stay flexible even when cold, an essential quality for roofs that must endure sub-zero temperatures or regular hail damage.

SBS roofing membranes are exceptional at managing temperature changes. Unlike other materials that fracture or break down under shifting conditions, SBS systems flex and move without sacrificing strength. This makes them especially appropriate in Calgary, where thermal changes can be grueling on roofs. SBS roofing meets all Canadian snow load requirements.

Feature	SBS Roofing	TPO Roofing	EPDM Roofing
Flexibility	Excellent, even in cold climates	Moderate	Good
Weather Resistance	High (hail, snow, UV)	Moderate	Moderate
Lifespan	20–30 years	15–20 years	15–25 years
Cost	20–40% higher	Lower	Lower
Insulation Options	EPS, XPS, Poly-iso	EPS, XPS, Poly-iso	EPS, XPS, Poly-iso

SBS roofing can work on flat commercial roofs and residential designs alike. Its versatility to work with EPS, XPS, and Poly-iso insulation delivers increased energy efficiency.

Its material costs exceed options such as TPO or EPDM, warranties ranging from 10 to 30 years, and an expected lifespan of up to 30 years render it a cost-effective choice.

See also: Ultimate Guide to Energy-Efficient Home Improvements

Torch-On Roofing Deep Dive

Torch-on roofing, which is known as SBS roofing, is a widely used flat roofing system that is highly regarded for its robustness and adaptability. It consists of using an open flame to lay down modified bitumen sheets as a roof surface. The outcome is a smooth, leak-proof surface that shields against both water seepage and storm harm.

Torch-on roofing’s power is the bond it forms with the roof substrate. This 2-ply system provides a consistent, durable surface that survives even the harshest environments – including snow, constant rain, and sun exposure. Its lifespan, usually 20-25 years, is contingent on climate and upkeep.

Of course, they have to be professionally installed to get these results, and the open flame application requires some chops to be safe and accurate.

Although its materials are 20%-40% more expensive than options such as TPO or EPDM, the longevity and efficacy of SBS roofing make it a worthwhile expenditure for numerous. It can be installed via cold process, hot asphalt, self-adhered, or mechanically fastened.

Torch-on roofs are simpler to install than other flat roofing systems, so they’re a good choice for both residential and commercial properties.

Flat roof insulation is another key consideration, including EPS, XPS, and Poly-iso rigid insulation options for thermal performance. Manufacturer warranties (typically 10-30 years) provide additional benefit with peace of mind.

It should be noted that SBS roofing is susceptible to chemical damage.

The Calgary Climate Factor

Calgary’s climate is extreme, requiring roofs that can survive rugged winters and scorching summers. It’s a city of heavy snow and freezing winters and warm summers with intense UV and hailstorms. These conditions call for roofing systems such as SBS and torch-on, known for their durability and versatility.

Being winter in Calgary, of course, means abrupt temperature fluctuations — which can cause roofing components to expand and contract. This thermal movement can weaken materials with time, so flexibility is important. SBS membranes’ rubber quality serves them well in such conditions, as they remain intact even through repeated cycles of expansion and contraction.

Calgary’s substantial snow loads highlight the importance of resilient roof designs that can support heavy weights without compromising structural integrity.

Summer presents another kind of challenge. Strong, direct UV rays during clear skies can wear down or burn through standard roofing materials, significantly shortening their service life. SBS membranes, on the other hand, provide better UV resistance for long-lasting performance.

Calgary’s summer storms, frequently producing hail, sleet or downpours, have the potential to create physical and noise damage as well. SBS roofs, correctly installed, offer a long-lasting and quieter solution, reducing the noise of extreme weather events.

Wind is no slouch. Calgary’s gusty conditions require roofing systems with powerful adhesion and tightly secured installations to resist wind uplift and damage. Torch-on roofing methods are wonderful for sealing out these forces in our neck of the woods.

Key Climate Considerations for Roofing in Calgary:

• Heavy snow and freezing winter temperatures demand strong, load-bearing materials.
• Strong UV and rain require UV and waterproof roofs.
• Sudden temperature changes demand flexible materials like SBS membranes.
• The strong winds make these things stand out as really good, windproof installations.

Choosing Your Flat Roof Material

Things like durability, price and upkeep all play a role in the decision, because there’s no one-size-fits-all all flat roof solution. Here’s a comparison of SBS roof and torch-on roofing to guide your decision.

1. Durability: SBS (Styrene-Butadiene-Styrene) roofing is highly regarded for its flexibility and strength. It stands up to the extremes of weather, from thick snow to blistering heat, without cracking or splitting. Torch-on roofing, although durable, can be a bit less flexible and wear over time in harsher climates. Both can last 20-30 years with good care.
2. Cost: SBS roofing typically has a higher upfront cost due to its advanced materials, ranging from $7-$12 per square foot. Torch-on roofing, a more conventional option, clocks in at $4-$8 per square foot. The long-term savings of SBS roofing typically far surpass its upfront cost, particularly in areas where the weather can be problematic.
3. Maintenance Requirements: SBS roofing requires minimal upkeep, thanks to its elasticity and resistance to cracking. Periodic inspections and maybe a cleanup here and there are all you need. Although torch-on roofing requires minimal maintenance, it might incur more frequent repairs in regions exposed to hail or heavy precipitation.

SBS roofing is known for its flexibility and durability. Its inherent ability to expand and contract with temperature makes it perfect for Calgary’s volatile climate. Its waterproofing properties protect it very well from leaks.

Torch-on roofing, conversely, is a budget-friendly option that’s highly waterproof. It’s a no-nonsense answer for hybrid budget-conscious roofing connoisseurs.

Beyond the Membrane

Modern SBS roofing in Calgary incorporates advanced solutions that extend beyond the basic membrane, offering durability, energy efficiency, and adaptability to harsh climates. These systems solve key flat roofing issues by adding extra layers and functionality.

Insulation is crucial for energy-efficient flat roofs. Beyond the Membrane SBS roofing solutions include applied foam and coatings, which enhance thermal performance and provide additional R-value to the building. This makes them especially appealing in areas like Calgary, where the harsh temperature swings beg for more efficient energy use.

For instance, a coated roof system is a great way to cut heating and cooling costs in the name of sustainability. Other protective layers, like gravel ballast or reflective coatings, are crucial in enhancing roof performance. Gravel protects against UV rays and physical damage, and reflective coatings reduce heat absorption, saving even more energy.

These features help increase the roof’s durability and minimize maintenance. Flat roofs require proper drainage to avoid water pooling. Tapered insulation and built-in drainage channels, for example, keep water moving so it doesn’t leak or rot.

In Calgary’s freeze-thaw cycles, these systems are essential in keeping your roof safe. Routine check-ups can go a long way toward enhancing the advantages of roofing. A practical checklist includes:

• Inspecting for cracks or punctures annually.
• Clearing debris to maintain drainage functionality.
• Applying protective coatings every few years.
• Scheduling professional inspections biannually.

Though the initial material costs can be 20%-40% more than TPO or EPDM, the energy and maintenance savings over time typically make up this difference. These systems are expertly adapted to Calgary’s one-of-a-kind weather demands, providing durability and performance for years to come.

Wrapping Up

SBS roofing is a tough and pliable solution for Calgary’s unique climate. Its flexibility in temperature and long-lasting protection give it some legs as a good option for flat roofs. Throw in professional installation, and you know you’re maximizing your investment.

Angel’s Roofing puts years of experience and a dedication to quality into each project. Whether it’s choosing the appropriate materials or laying them down with accuracy, we emphasize results that endure. Your roof deserves top-notch expertise, and we’re ready to deliver.

Call Angel’s Roofing now to find out more about SBS roofing or to get a free estimate. So let’s collaborate to shield and beautify your property with a roof that lasts.