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Is White EPDM Roofing a Good Investment?

EPDM is the most affordable of the three primary membrane materials. A white EPDM roof, on the other hand, is not inexpensive. However, this white roofing material is very long-lasting. EPDM has been used in canals and other irrigation systems since the early 1960s, long before becoming a common roof waterproofing material.

EPDM rubber membranes are thought to have been used on 1 billion square feet of roofs worldwide, owing to their relative longevity, ease of installation, and low cost.

EPDM Cost Per Square Foot Installed

Installing an EPDM rubber membrane on a flat roof would cost between $4.50 and $6.50 per square foot on the low end. Although not widely available, the low price is equivalent to asphalt shingles, which indicates how inexpensive it can be. The high-end price varies between $6.50 and $10.50/sq. Ft. is likely to be for a thicker or more photo reflective rubber membrane built by professional flat roof specialists.

The Benefits of an EPDM Roof

Proper installation by qualified professionals will result in warranties lasting up to 30 years.

Re-coating with liquid EPDM will extend the life of the roof.

PVC and TPO roofs are less expensive to build.

Highly resistant to hail, heavy rain, wind, and extreme cold than other membrane materials.

EPDM Roofing Installation

    • Roof Deck Preparation – Clean the roof surface before installation. Ascertain that the roof is clean and free of debris such as ashes, gravel, rust, tar, grease, and loose materials. It is vitalThe roof must be that the roof is fully dry. This substance would not do well on wet surfaces. Moisture that has been trapped can vaporize, affecting the output of the substance. This machine performs well when placed on a deck made of exterior quality ply or OSB3. Any residual bitumen from an old roof should be washed or disposed of, as it would impair the efficiency of the EPDM rubber membrane.
    • Install Drip Batten – Mount the Drip batten where there is a gutter. This will lengthen the roof deck, causing water to drip into the gutter rather than behind it.
    • Install Drip Back Drip Trim – The Drip Trim comprises two pieces: one for the front and one for the back. Attach the Drip Trim backplate using the nails given. Align the angled top edge of the trim with the top edge of the wood batten.
    • Chase out Wall Upstand – Using an angle grinder or a mortar chisel, chase out the brick mortar joint to install Wall Trim flashing.
    • Relax Rubber Membrane – Allow the rubber membrane to relax in place for 30 minutes.
    • Fold Membrane Halfway – Return the rubber membrane to reveal the roof deck on half of the roof.
    • Apply Deck Adhesive – Apply Water Based Deck Adhesive with a 9″ paint roller. Allow a 150mm space across the circumference of the roof deck to be bonded with Contact Adhesive later.
    • Sweep EPDM Membrane – Sweep the EPDM membrane to remove any trapped air and improve substrate bonding.
    • Apply Contact Adhesive to Roof Perimeter – Apply a THIN coat of Contact Adhesive along the circumference of the roof deck and some vertical upstands (approximately 150mm width). Apply the Contact Adhesive to the back of the rubber membrane as well.
    • Ensure Contact Adhesive is Touch Dry – Ascertain that the Contact Adhesive is fully dry and there are no puddles.
    • Penny Roller Detail – To ensure Elastoform sticks to all surfaces, apply light pressure with a penny roller.
    • Folding the Rubber Membrane on a Roof Corner – The membrane can be folded without cutting where an exterior roof angle is detailed before edges are mounted.
    • Form Pigs Ear – Pinch the rubber membrane together to form a pig’s tail.
    • Fold Pigs Ear – Fold the pig’s ear on the side of the roof.
    • Fit Trim Corner – Place the tiny corner in place, squash the foam sealer, and nail the polypins to the fascia and batten.
    • Fit Plastic trim Kerb Edge – The Kerb Edge is made of plastic and is designed to deflect rain back onto the roof. (Traditionally, we will use an arris rail for this purpose.)
    • Fit Trim Joining Clip – Snap the joint clips that come with the kit into place.
    • Fit plastic trim Drip or Gutter Trim – Put on the plastic trim. Trim the drip or gutter front with the provided polypins, and if necessary, add jointing clips.
  • Trim Excess Rubber Membrane

Completed Rubber Roof – The completed rubber roof has a life expectancy of over 50 years and needs relatively little maintenance.

White metal roof - EPDM Roofing

Types of EPDM Roofing

  • Ballasted EPDM – Larger rolls of EPDM rubber are used in ballasted EPDM construction, kept in place by a rounded washed stone top sheet.
  • Fully Adhered EPDM – With this type of EPDM roofing, the insulation is mechanically attached to the roof, and the EPDM membrane is then adhesively glued to the insulation layer.
  • Mechanically Attached EPDM – Mechanically connected EPDM roofing systems have the rubber membrane adhered to the deck physically (often using a batten cover strip and roofing screws). Rolls of EPDM seam tape and glue are used to cover and seal the seams.

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