6 Reasons why Built-Up roofs are ideal for Commercial Buildings
Low-slope roofs are common in most commercial buildings in the United States. That is because they provide enough space for the HVAC system and other mechanical components along with better utilization of the interior space. However, they also get the most exposure to the outside weather, which makes them highly prone to damage.
This increases the need for a reliable roofing solution for commercial buildings. Out of several material options, built-up roofs stand out as the preferred choice of contractors and Business owners.
But, what is built-up roofing?
A built-up roofing system is made up of many layers of tar, fabric sheets, and gravel that form a waterproof and durable seal over the roof of your property. It is then covered with a material to seal it against the weather elements – usually gravel & other types of crushed rocks and materials.
Here are the six reasons why built-up roofing is ideal for Commercial Buildings.
1. Excellent Water Resistance
Built-up roofs contain asphalt that exhibits excellent waterproofing qualities. It is made possible via “plies”, wherein the layers of asphalt stick firmly with the layers of reinforcing fabric on top of the rigid insulation.
2. Fewer Roof Leak Opportunities
Built-up roofs are built in such a way that there are no seams to crack open and allow water penetration. Also, this setup doesn’t require any plates and screws to fasten it to the substrate, minimizing the chances of leaks.
This isn’t the case with other roofing systems; hence, they experience more leaks than built-up roofs.
If superficial fissures occur as the roof ages, the multiple layers prevent the rain damage until the repairs happen. Built-up roofs consist of a monolithic covering, thanks to the liquid rendered asphalt, which makes them less susceptible to leaks.
3. Exceptionally Durable
Hailstorms are common in America, and they can damage a roof beyond repair if it isn’t built properly. However, built-up roofs can withstand even the strongest of hailstorms.
Even massive hailstones can’t damage a built-up roof. They are also impervious to high winds. They have no effect of high foot traffic and dropping tools won’t puncture it.
4. Longevity Your Commercial Building
Although built-up roofs cost a bit more upfront, they can easily make up for the cost by lasting over 50 years with little to no maintenance. If the plies are sufficient and properly installed, the maintenance efforts are reduced. Therefore, the amortized costs are usually lower for a built-up roof than any other system.
5. Possible Energy Savings
Built-up roofs are designed to reflect more sunlight and absorb lesser heat than other roofing systems. The reason being, they have a reflective coating between the asphalt and the sun’s rays.
Another reason why built-up roofs can reflect the sun’s rays is because of the layer of cool white topcoat spread over the surface. As most of the sun’s rays are reflected, it makes the building cooler, reducing the strain on air conditioners.
6. Low Maintenance
The reason American contractors prefer a built-up roofing system over shingles is that the former requires lesser maintenance. Unlike the architectural shingles, built-up roofs are installed in large sheets with a very low profile.
This makes the roof system less prone to damage. It also means fewer individual parts that need to be replaced. That is why such roofs are known to last over 50 years with minimal maintenance.
Final Words
Built-up roofs are here to stay. With several modern enhancements, they offer a long-lasting and durable solution you want for your commercial or industrial building.
They have been used in the United States for over 100 years and their demand is only increasing. If you’re looking for reliable roofing solutions, built-up roofs are the way to go.

I totally agree that hailstorms can be too common and damaging especially to a building’s roofing. It reminded me of the local store last year that happened to suffer a lot of damages and wasn’t able to resume operations just because of a natural disaster. If I were to be in the same situation, I’ll be sure to hire commercial roofers regularly to ensure that my roof is in good shape.
Sealing of roofs is very important in ensuring effective roofs
Thank you for clearing all this up for us!
Thank you for sharing this useful information for us!
For big businesses, it is important to ensure the longevity and safety of their roof because this in turn ensures the physical safety of their employees. Builtup roofs are a must for big offices, manufacturing units.