Commercial Roofing Montana is used on non-residential buildings like offices, hospitals, warehouses, shopping malls, etc. These structures need durable, functional, and easy-to-maintain roofs.
Choosing the right material for your commercial roof is crucial. Considerations include durability, energy efficiency, and cost. Some materials are also more aesthetically appealing than others.

Built-up roofing, also known as BUR, is a time-tested and reliable roofing option for flat or low-pitched roofs. Its layered approach allows for redundant layers of ply sheets and bitumen, creating a strong and durable membrane that is resistant to fire, wind, and rain.
A built-up roof begins with a roof base that can be either wood, concrete, or metal. Depending on the type of roof, the base may require a layer of vapor barrier or insulation. A cover board is then adhered to the base, and a series of asphalt and fibrous ply sheet layers are applied. The final layer is a surfacing material like gravel or stone. This provides a watertight seal and is designed to protect the underlying roof systems from UV radiation.
BUR has long been a popular commercial roofing solution due to its durability and ability to weatherproof buildings. It is an ideal choice for commercial and industrial buildings that have flat or low-sloped roofs, where the layered system can provide effective weather protection.
When properly installed, BUR can last for over 100 years with minimal upkeep. However, its installation requires time and skill. Plus, if the right materials aren’t used, it can have poor waterproofing capabilities.
One of the biggest drawbacks of BUR is that it’s difficult to diagnose a leak from its many layers. This is why it’s important to have an experienced service crew to handle this type of roofing.
Another disadvantage of BUR is its high cost. While the layered design does give it an edge over other roofing systems in terms of durability and lifespan, these advantages come with a significant price tag. Also, the chemicals involved in the hot bitumen process can produce hazardous fumes that are not safe for building occupants to be exposed to.
Single-Ply Membranes
Many commercial roofs are made from single-ply membranes, and there are several options to choose from. These systems are chemically resistant, highly reflective and strong. They are also cost-effective and easy to install. They can be fully adhered, ballasted or mechanically attached and are very lightweight. In addition, most single-ply membranes are able to withstand high winds, making them suitable for coastal buildings.
The main advantage of a single-ply membrane system is that it uses only one layer of waterproofing. This helps to keep the overall construction costs low and simplifies the installation process for contractors. In general, single-ply membranes are cheaper than BUR systems and require less training to install. They are also comparatively fire-resistant and have long lifespans, with many being warranted for up to 30 years.
While the individual characteristics of different single-ply membranes vary, they are categorized as either elastomeric (EPDM, ethylene propylene diene monomer) or thermoplastic (TPO and PVC). Thermoplastics contain a wide range of plastic polymers that have been bonded together using chemicals. They are typically more flexible than EPDM and offer a range of additives for extra protection against UV rays, flames, solvents and other harsh chemicals. They can also be heat welded at seams to form a watertight seal.
In general, most single-ply membranes are supplied in large sheets that are cut to size and applied to the roof by contractors. Some are mopped down using hot asphalt, while others are heated with torches to melt the membrane into place. Depending on the membrane type, some have polyester or fiberglass reinforcements for increased strength and stability.
When dealing with penetrations such as ventilation or utility pipes, some single-ply systems may need to be patched. Contractors can use either a self-adhesive tape or apply a special primer and adhesive to the penetration before installing the membrane sheet. Some single-ply systems, such as PVC and TPO, are available in a range of colors to match the building’s aesthetics. It is important for the building owner to ensure that any trees overhanging the roof are regularly trimmed back, as they can cause punctures in the membrane.
Asphalt Shingles
Asphalt shingles are the most popular type of roofing in the United States and come with a wide array of color and style options for homeowners. They also offer a good value for the money and are easy to install. However, they are not the longest-lasting roofs out there; in fact, metal is better for long-term durability.
An asphalt shingle consists of several components, most notably a fiberglass or organic mat base that’s covered with a layer of asphalt and topped with stone granules. The granules help prevent moisture build-up and give the shingles their color. The granules are often coated with an algae-resistant substance to prevent the growth of blue-green or other types of algae, and some shingle manufacturers can even make a shingle with a reflective coating that helps decrease a building’s energy costs by reflecting more of the sun’s heat.
The base mat can be either fiberglass or organic, but both kinds are made in a similar manner. Fiberglass shingles have an asphalt-saturated fiberglass base, while organic shingles use a recycled felt paper saturated with asphalt. The shingles are then coated with a granule surface, and the underside is treated with sand, talc, or mica to prevent them from sticking to one another before being used on a roof.
In addition to their waterproofing properties, the asphalt shingles are fire-resistant and comply with fire and wind standards. They are also highly durable, able to resist sunlight, heat, cold, snow, rain, hail and ice.
While asphalt shingles are a byproduct of crude oil, technological advancements and more efficient production processes have made them a more environmentally safe material than they once were. Additionally, many shingles are made with recycled materials to further reduce their environmental impact.
There are three different styles of asphalt shingles: 3-tab, architectural (dimensional or laminate), and premium. 3-tab shingles are the most common and are known for their classic rectangular shape and simple aesthetics. Architectural and laminate shingles are more elaborate in design, and they can mimic the look of genuine cedar shake or natural slate roofing, without the installation issues, weight, maintenance, and flammability concerns.
Metal Roofs
Metal roofs are a familiar sight on farms, barns, and industrial buildings, but they are becoming increasingly popular for residential applications as well. A few of the main reasons that are driving this trend include:
Durable – Steel and aluminum resist damage from hail, high winds, and other common roofing threats. They also don’t absorb water like shingles or other composite materials, so they are less likely to develop leaks. Energy-efficient – Because they reflect sunlight instead of absorbing it, metal roofs can save you a significant amount of money on your energy bill.
Long-lasting – With proper maintenance, a metal roof can last up to 50 years or more. Additionally, a metal roof is recyclable at the end of its lifespan, making it one of the most environmentally friendly options available.
Faster installation – Because it’s not as fragile as shingle systems, a metal roof can be installed faster than other types of commercial roofing. This is especially important for a business that needs to get back up and running as quickly as possible after a disaster occurs.
More expensive – The upfront cost of metal roofs can be higher than other roofing materials. However, if you are interested in investing in a metal roof for your business or home, you may be able to obtain a low-interest financing option to help ease the blow on your budget.
Maintenance – Metal roofs require regular inspections to ensure they are properly secured and protected against potential damages. During these inspections, it is important to look for any dents, scratches, or loose screws that need to be tightened. Addressing these issues promptly will minimize the risk of leaks or structural damage down the road.
Another maintenance issue to watch for is thermal expansion and contraction. If a metal roof isn’t installed with adequate allowances for these fluctuations, it can put stress on the panels and potentially cause them to shift or detach. These issues can lead to gaps and water infiltration into the building, which can result in damage, mold, mildew, or interior leaks.