How to fit EPDM rubber roofing

EPDM rubber roofing is one of the most common and popular types of flat roofing for a range of different buildings. The durability and versatility of this material make it perfect for both commercial and residential properties, and EDPM roofing is a long-lasting solution. 

With a wide range of benefits, including simple and affordable installation, it’s no surprise that so many people choose this material, but how do you install this roofing?

In this blog, we’ll explain how to fit EPDM rubber roofing and what you’ll need to get the job done.

Want to ensure perfect installation? Our roofing experts at Alvadac specialise in rubber roof fitting and can ensure long-lasting, professional roofing solutions. 

What is EPDM rubber roofing?

EPDM or Ethylene Propylene Diene Monomer is a synthetic rubber material used for roofing. This rubber membrane comes in sheets that can be cut to size during installation. EPDM rubber roofing is renowned for its durability, lasting up to 50 years with the right care and maintenance. This is the most popular modern roofing material due to the minimal repairs and cost efficiency EPDM offers over time.  

What you need to install EPDM rubber roofing 

• EPDM rubber membrane 
• EPDM adhesive
• Roller
• Utility knife
• Tape measure
• Contact adhesive 
• Broom
• Chalk or chalk pencils
• Ruler
• Soffits and facias (for full roof refitting)
  

Step 1: Prep the surface of your roof

Before you begin, you need a clean, solid foundation to lay your EPDM rubber roofing. You can apply this material to:

• Plywood
• OSB board
• Concrete
• Felt 

Start by using a broom to sweep away any dust or debris, like dried leaves and twigs. If the surface is wet from rain, it will need to be dried to prevent trapping moisture under the roofing material.

Inspect the surface for any loose screws or nails that can create an uneven surface or damage the EPDM material.

Without the right preparation, you’re more likely to encounter problems during installation or with your roofing further down the line.

Step 2: Measure the EPDM membrane

EPDM membrane comes in rolls that need to be cut to size. Unroll the membrane and leave it to sit flat for about half an hour. This will allow the rubber to settle and smooth out any bumps from storage. 

Once the material is flat, position it across the full surface that’s being covered. You should ensure that when you cut the rubber, you have around 100m of excess. This will allow for trimming and finishing, and for any measuring errors.

Step 3: Apply adhesive to the rubber

When the membrane is cut and laid, fold half of the rubber over to expose the decking underneath. Then, using a roller for smooth and even application, apply a water-based EPDM adhesive. Focus on applying evenly to avoid wet patches that may cure unevenly.

Gently roll the membrane back over onto the surface, slowly applying pressure to remove any air bubbles. Wait a few minutes and then repair this process with the other half of the roofing.

Step 4: Secure the edges of the EPDM membrane

Wait around 20 to 30 minutes to allow the membrane to bond to the surface, and then begin by securing edges and corners with a contact adhesive. Apply this to both the surface and the corner of the EPDM membrane. Leave this adhesive to become tacky before securing the membrane down. 

Corners and edges are where the most wear and water damage can occur, so it’s important to give extra attention to these areas so that the membrane is firmly adhered. 

Step 5: Trim any remaining membrane

Once the EPDM rubber roofing has cured, trim any excess with a utility knife. Once you’ve done this, we’d recommend installing edge trims for maximum longevity and durability.

Formally known as a fascia, edge trims cover your EPDM corners to offer extra protection and fix the membrane securely in place. These trims can be nailed into place and then sealed with a waterproof sealant around the perimeter.

6. Check your rubber roof

Once you’ve installed your roof and everything is cured, it’s time to thoroughly inspect your work. Check the membrane for any bubbles and loose edges, and make sure that any seams are secured.

EPDM rubber roofing is simple to install and needs minimal maintenance, but you should occasionally inspect your roof and periodically clean the surface to remove any debris that may cause damage. 

Ensure the best fit with professional EPDM roofing

Learning how to fit EPDM rubber roofing is simple, but if you want to ensure the best installation, it’s always best to consult an expert. Here at Alvadac, we have professionals who specialise in EPDM rubber roof installation. Our team can provide quality flat roofing supplies for DIY installation or install your roofing for you to the highest standard. 

Get in touch with us to start your roofing transformation today. Whether you’re looking to refresh your garage or modernise your business, we offer reliable, cost-effective roofing solutions.