Commercial roofing has five basic categories including metal, single-ply, built-up, modified rubber, and spray foam. Each have their individual advantages like low cost of installation, or significantly higher durability and lifespan.
Metal roofing tends to be one of the most selected types of commercial roof materials. There are a few types of metal and styles that are used for roofing. These include aluminum, corrugated steel, aggregates of zinc, metal tiles sheets, silicon-coated steel, tin, lead, and stone-coated steel.
Extended exposure to the sun can rust many types of metal, especially steel. To help prevent rust surfacing layers are added that protect against precipitation and intense sunlight. Most of the time the metal roofing surface coatings are made from acrylic, epoxy, or ceramic. They help extend the life of the metal roof by protecting against rust and even offer some reflective properties.
Single-ply roofing materials are factory made membranes that come in two basic types, thermoset and thermoplastic. These roofing types are installed in various ways that include mechanical attachment, being held down with ballast, or even being fully installed. With single-ply roofing there is not usually a surface coating included. They often do include reinforcement layers that feature fleece backing, polyester fabrics, glass fiber or felt.
Thermoset membrane is usually EPDM (ethylene propylene diene terpolymer), which is a extremely durable rubber roof membrane. This roofing is available in either black or white and comes in different lengths and thicknesses depending on the needs of the commercial application.
Thermoplastic membranes differ by having no chemical crosslinking and can be repeatedly softened or hardened by applying heat or letting the material cool. This means that seams are made via heat welding instead of solvent welding.
Built-up roofing, or BUR as it is commonly referred to, are known many times as tar and gravel roofs. They are made up of layers of bitumen and reinforcing fabrics that are laid in alternating layers. These alternating layers together make up the finished roofing membrane that helps keep water out. Installation is carried out by laying the membranes out over the roof’s surface. The layers of material are many times referred to as plies. The bitumen found in BUR roofing is usually made from coal tar, asphalt, or cold applied adhesive. Top layers of surfacing can be done with a variety of methods including: aluminum, gravel, slag, mineral surfaced cap sheets, glass-fiber surfacing or hot asphalt.
Modified Bitumen Roofing
Modified rubber roofing is similar to BUR roofing in that it includes bitumen. Reinforced roof fabrics have bitumen manufactured into them and act as a carrier for the material. This roofing material is typically made into rolls that are installed by fastening them to roofs as a two layer system. They are fully adhered to roof decking and there are generally two types of modified bitumen roofing. These are SBS and APP modified bitumen roofing. Both of them include options for surfacing layers that have mineral payers, liquid applied layers, aggregate layers, or metal foil laminate layers. SBS modified bitumen allows for either hot asphalt or cold adhesive installation. APP modified bitumen is applied with heat torches.
Spray Foam Roofing
Spray foam or SPF roofing is a foam type material that is made by mixing a tow part liquid and spraying it over the roof surface. It is many times a base layer for the preparation for other roofing layers. The thickness can be variable based on skilled technician application. This means it can act as an additional layer of insulation for your building or the thickness of the material can be varied to affect controlled drainage.
Mesa Commercial Roofing
Every business needs to be able to weather the sun, rain, and wind that is common in Mesa Arizona. We rely on our roofing to protect the contents of our businesses and homes. Loss from leaking or failing roofs can be costly to repair and disruptive to businesses. Avoid costly repairs and downtime with inspections and prompt repairs of your commercial roofs. For installation, inspection, repair or replacement call the commercial roofing experts at either: 480-232-5458 (East Valley) or 602-299-8851 (West Valley)