There are several types of roofing materials for flat roofs. Learn about EPDM rubber coverings and PVC membranes. Depending on your budget and aesthetic tastes, these roofing materials can be quite expensive. Listed below are the most common types of roofing materials for flat roofs. These materials have the advantage of being relatively easy to install. However, they require regular maintenance. In addition, some types of flat roofs need to be replaced frequently.
EPDM rubber covering
There are many benefits of using an EPDM rubber covering for flat roofs. It is highly durable, light, and easy to install. Another benefit of EPDM is that it is recycled, and can give old rubber tires a second life. It also offers an energy efficiency that is beneficial in warmer climates. So, why choose EPDM for your flat roof? Read on to learn more. Here are the top reasons to install EPDM roofing.
Reasons are given below:
– The longevity of an EPDM rubber covering for flat roofs depends on its thickness and method of attachment. Fully adhered EPDM roofs can last for thirty or fifty years. Mechanically attached membranes can last for fewer years. A 45-mil EPDM roofing membrane may last for only a few years. If you have a large flat roof, it might be better to purchase a 90-mil EPDM rubber covering.
– Proper installation requires two stages of glueing. First, water-based adhesive is applied to the roof decking. Leave a gap of about 150mm at the edges. The contact adhesive will be applied to the edges later. Once the adhesive is dry, roll out the membrane and brush it on to the glue with a soft-bristled brush. Repeat the process on the other side of the roof.
– Rubber roofing must adhere to specifications set by ASTM D4637. Only products that have met these standards are allowed to use the material. However, the rubber roofs must be able to withstand a single hailstorm. If you are looking for an environmentally friendly option, consider installing an EPDM rubber roof. It will last 30 to 50 years or more. There are several advantages to choosing an EPDM rubber covering for flat roofs.
– EPDM is a thermoset material that is resistant to heat, UV rays, and ozone. Another benefit of using EPDM is its durability and affordability. This single-ply membrane is lightweight, highly resistant to scuffs and tears, and can be mechanically anchored, ballasted, or glued. Lastly, EPDM is extremely durable, and the standard black color makes it ideal for flat roofs. Light-colored EPDM coatings add about 30% to the price.
Maintenance Tips
When it comes to maintenance, EPDM rubber roofing is inexpensive and quick to install. It is made from FDA-approved rubber, which is non-allergenic and compatible with plastic. Most roofs have some degree of wear and tear, but the material is usually lightweight and easy to repair. It also doesn’t retain its shape, so it can be easily adapted to fit any style or shape of flat roof. This is a popular choice for homes and commercial buildings.
EPDM rubber is available in several different sizes, so you can choose the right size for your project. If you’re looking to cover a large area, you’ll most likely need 10 x 100-foot sheets of EPDM rubber. You can also find smaller pieces of EPDM rubber online. In general, EPDM membranes have a thickness of 60 mil or 90 mil. It is important to understand that the EPDM rubber you’re using is made from a terpolymer of ethylene propylene dimethylmethane ethylene. The terpolymer has 40% actual base resin.
There are a few common problems with EPDM roofing, which can be avoided by following installation guidelines. These issues can include shrinkage, which occurs when the membrane is improperly relaxed prior to installation. This happens because the membrane didn’t adhere to the perimeter properly, which results in separation and subsequent damage. A professional roofing contractor can advise you about what needs to be done. If the shrinkage is significant, an EPDM roof might require a full replacement or repair.
PVC membranes
Duro-Last, Inc. offers PVC roof systems that exceed industry standards for durability and serviceability. With billions of square feet of membrane installed in North America, they are a leader in the industry and provide unmatched customer service and expertise. Their high-quality 50 mil membrane features a 28-mil top performance layer, exceeding industry standards and rivaling competitor systems with equal or higher mil values. Not only does Duro-Last manufacture the entire roofing system for residential and commercial buildings, but they offer custom prefabricated accessories for commercial and industrial applications.
Although EPDM is among the cheapest roofing materials, it is susceptible to damage and mold build-up. It can be less expensive than PVC, but its lower durability can be a major drawback. Fortunately, EPDM roofing is also highly durable, lasting more than a century. It can be hot air-welded or installed using a heat-welding process. EPDM rubber is a less durable option, and can develop leaks over time due to freezing and thawing cycles.
PVC Sheet Membranes for Roofing
Unlike PVC roofing, PVC sheet membranes are much easier to install. However, professional installation is recommended for both materials. Installers must use high-quality hot air welding and roller-grade adhesive. Neither option should be performed by an amateur or an unqualified person. Once the membrane has served its purpose on the roof, PVC can be recycled into new membranes. If you live in a warmer climate, white PVC will make sense. Darker colors, on the other hand, will save you more money in the winter months and lower your heating costs.
As a flat roof membrane, PVC is an excellent choice. It can withstand extreme temperatures, is durable against chemicals, and is resistant to tears. A PVC membrane made of white material is energy efficient and reflects sunlight. It can be mechanically attached or fully adhered to the roof. Mechanically-attached PVC systems tend to be more expensive but come with a sound warranty. If you opt for this method, it is recommended that you contact a local roofing contractor, as the installation is easier.
While PVC membranes have remained unchanged in their basic composition for over 35 years, many advances in technology have made them more suitable for the modern roofing environment. Earlier versions of PVC membranes had low-grade plasticizers, which often leaked out of the material leaving it brittle and vulnerable. Modern plasticizers are more effective, with some manufacturers offering 30 year warranties on high-quality PVC roofing systems.
TPO Material
TPO is a single-ply material that performs well on low-slope roofs and weighs less than a half pound per square foot. It is especially useful in old buildings that may not be able to withstand a full built-up roof load. Manufacturers of both TPO and PVC membranes are constantly tweaking the blends to achieve optimum performance for different applications.
Elvaloy KEE, a solid, high-molecular-weight polymer, improves the durability of PVC membranes. It also enhances UV resistance and weathering properties. The first Elvaloy KEE roof was installed in Florida in 1977, and its popularity has since risen. The PVC KEE membrane system is VOC-free and provides a long-lasting commercial roofing solution.
Although flat roofs are not bubble level, they are angled and sometimes pitched a couple of degrees. In addition to absorbing the brunt of the elements, they must also resist the accumulation of snow and ice until it melts. A PVC single-ply membrane is an excellent choice for flat roofs because it is a single layer of thermoplastic material. Because of its strong material, it is able to withstand high foot traffic and is also a highly durable option for heavy commercial projects.
Long Lifespan Gurranty
In addition to offering a long lifespan, PVC membranes are the most popular commercial roofing products on the market today. They are tough and durable, and can withstand aggressive flat-roof aggressors like chemicals and hurricane-level winds. They also provide a comfortable interior temperature and are preferred by building owners for many years. These single-ply PVC membranes are available in multiple thicknesses and widths.
The benefits of PVC membranes for flat roofs go beyond just their durability and flexibility. They are also strong and highly resistant to chemicals and animal fat. This makes them a popular choice for industrial buildings and restaurants that are prone to fire. These materials also resist flame and have an unlimited slope approval rating. Unlike single-ply membranes, they do not support combustion, and the heat-welded seams prevent root penetration.
