Can you put a rubber roof over a metal roof?

If you have a damaged metal roof, a rubber roof may be a better solution. Rather than going through the process of tearing off the existing metal roof, you can install a rubber roof over the top.

Can you install EPDM over metal roof?

EPDM(Rubber) Roof System Work Steps:

The existing metal roof remains in place. Roof insulation (one or more layers) is installed between and over the ribs of the existing metal roof panels. … EPDM membrane is fully adhered to the insulation.

Can you seal a metal roof?

For a newly constructed metal roof, a metal roof sealer is required. Typically butyl seam tape is positioned over the joints and seams between the metal panels and butyl caps are placed over all nails and fasteners to ensure proper sealant.

Does EPDM stick to metal?

The WeatherBond EPDM fully adhered system will adhere to wood, metal, plastic, glass, fiberglass, rubber, masonry, brick, smooth-surface built-up roofs, non-granular roll roofing, non-granular “half lap” roofing, painted surfaces, wood fiberboard, lightweight concrete and polyisocyanurate.

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How long do rubber membrane roofs last?

But how durable are rubber roofs, anyway? A well-installed rubber roof is incredibly durable, lasting between 40 and 50 years if properly maintained. Of course, rubber roofs will last much longer if installed with proper drainage in mind.

What kind of underlayment goes under a metal roof?

Felt Underlayment (Asphalt Felt/Tar Paper Underlayment)

Known by many different names (including felt paper, roofing tar paper, and asphalt-soaked felt), felt underlayment is the most commonly used type of underlayment material on steep-slope metal roofs.

Can you put a metal roof over a TPO roof?

Both TPO and PVC roofing membranes can be installed over top of existing metal roofs. … TPO or PVC over metal roof retrofit is a cost-effective way to permanently stop leaks and without breaking the bank or your maintenance budget.

What is the best sealer for a metal roof?

For a quality product that offers durability, choose Titebond® WeatherMaster™ Metal Roof Sealant. Titebond is not your standard sealant. It is specifically formulated to outperform the other sealants including urethanes, silicones, VOC solvent, and tri-polymers.

What is the best roof coating for a metal roof?

Silicone roof coatings are the preferred choice when it comes to UV protection and resistance to ponding water. They erode much slower than other coatings without becoming brittle or hard.

What is the best coating for a metal roof?

An elastomeric acrylic coating acts like a shield, protecting the metal roofing system from the elements, including ultraviolet (UV) radiation, and ice and hail storms. It encapsulates existing rust, even if the roof is heavily rusted. It helps keep the roof weathertight by repairing leaks, cracks and seams.

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How do I bond EPDM to metal?

How to Bond EPDM to Steel

  1. Scuff the surface of the steel with 200-grit sandpaper.
  2. Pour isopropyl alcohol onto a clean rag. …
  3. Apply adhesive to the cleaned sides of the steel and the EPDM rubber with a 2-inch wide brush. …
  4. Set heavy objects on top of the bonded materials. …
  5. Remove the objects from the bonded material.


Does EPDM have to be glued down?

When you are fitting an EPDM roof, you need to make sure that it is glued down properly. During the membrane application process, you will need to apply two different types of adhesive. The first is a water-based adhesive. Use Permaroof deck adhesive for the best results.

What goes under EPDM?

EPDM should be bonded over 5/8″ plywood, 5/8″ OSB board, or polyisocyanurate board with a fiberglass backing.

How expensive is a rubber roof?

Rubber roofing costs anywhere between $8,000 to $14,000 to install depending on the slope, pitch, and size of your roof. You can expect to pay $4.25 to $8.25 per sq. foot or $425 to $8825 per square installed on a standard sized single story home.

Does a rubber roof need to be coated?

Many building owners are under the impression that they have a rubber roof that needs to be coated periodically. There are some roofing contractors that sell Modified Bitumen membranes as rubber, THEY ARE NOT. True rubber membranes (ie: EPDM, TPO, PVC) do not need to be coated.

How do you maintain a rubber roof?

How to Maintain a Rubber Roof

  1. Remove all limbs and debris from the rubber roof. …
  2. Inspect the rubber roof for old, loose or crumbling roof sealant. …
  3. Clean the rubber roof using dish-washing detergent and water. …
  4. Apply rubber roof cleaner to the roof to remove chalking.
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Roofs and roofing