It may seem like a silly question to ask, since asphalt is in the name, but many homeowners often want to know exactly what asphalt shingles in Minneapolis are made of. It’s an important question to ask! Asphalt shingles shield your home from all the harsh elements the Minnesota climate will throw at it. It’s worth knowing what’s protecting you. Here’s a breakdown of what makes up asphalt shingles.
Mats of fiberglass provide the foundation for asphalt shingles. Roofing manufacturers lay out rolls of fiberglass then cut the material into the size of shingles. As the name suggests, fiberglass is made from glass shavings, fused together with resin. Fiberglass is durable and helps your roofing last longer.
Fiberglass gets sandwiched between two layers of asphalt. The asphalt is key to making your roof water resistant. That way, rain and snow can’t leak through and cause interior damage. It’s mixed with a mineral powder to enhance the water resistant properties.
Asphalt might make you imagine the material that gets laid on top of roads. However, the material is processed differently for shingles. It must be tough to withstand dangerous weather conditions. Refining the asphalt is like an art. The shingles can’t be too brittle, and they can’t be too malleable.
Aggregate and granules
Granules are the part of shingles you can see. Rocks are crushed into particles and become the top layer. But they can’t be just any rocks. The type of mineral used depends on what properties the shingles need to have. Some reflect heat from sunlight while others are resistant to algae. Certain granules are used according to the specifications of a roofing project.
One layer of granules is laid down in their natural state. Then, the layer on top of that is fired to give it a specific color. This is what adds style to your asphalt shingles in Minneapolis. Every roofing manufacturer will offer a selection of colors to choose from.
Sealant is what sticks shingles together on your roof. Extreme high and low temperatures activate the sealant so it works even better under stressful conditions. This layer can either go on the top or bottom of the shingle. A similar material is also used to bond all the layers together.
Another form of sealant is called backsurfacing. This sealant actually isn’t used during the installation process. Instead, backsurfacing is applied to the back of shingles so they don’t stick to equipment in factories or to each other when they’re packaged.
Release film prevents shingles from bonding together in their packaging. It looks like tape that covers the bottom layer of the shingle. The film is necessary in packaging because warehouses can get pretty hot, which activates the sealant. Even though release film does nothing once shingles are installed, workers are not supposed to remove it.
They’re called asphalt shingles, but as you can see, there’s a lot more to this material than its namesake ingredient! With so many layers of protection, it’s easy to see why so many people choose asphalt shingles in Minneapolis.