Commercial - Residential - Institutional - Industrial - Agricultural

Thank you for considering the DuroLast Roofing System® on your roofing project. Existing metal buildings will experience some or all of the following issues, depending on your geographic region.
  • 1. Obvious leaks from rain water entry
  • 2. The presence of dripping after a cold spell (condensation)
  • 3. Ice back-up at the eaves and gutters

Each of these problems has a specific solution that con anly be resolved with a complete, insulated re-roofing project.

Option #1: Repair of the existing surface. This method consists of re-sealing each exposed fastener and seam followed by a complete surface coating.

  • This method is only an upgrade of your current metal surface.
  • Predictability of results: suspect, applicator sensitive.
  • Attractive side: costs
  • Issues unanswered: R-value, condensation, flexibility to perform in temperature extremes.
  • This is a temporary solution for rain exposure but does not address the condensation and gutter issues.

Option #2: Reinsulated, using a sprayed polyurthane foam over the surface of the roof, followed by top-coating of sealer to shed the water.

  • This method has merit in its attempt to resolve your condensation problem.
  • Does not effectively meet the need for a high quality roof and edge detail.
  • Predictability of results: suspect again, applicator sensitive
  • Adds insulation but has no guarantee of R-value due to spraying process.
  • Roofing barrier is a spray-applied coating: no assurance of thickness or adhesion.
  • Coatings as a roof have ponding limitations in their warranties: most foam rooves have irregular surfaces, creating ponds, even on sloped surfaces.
  • Edge details tend to wick water and are only as good as the ability of the product to "stick" to the substrate. Can tend to be corrosive in the presence of water.
  • No definitive edge details are possible to assure that "ice back-up" will not occur.

Option #3: Install a given R-value sheet insulation, followed by a reflective, DuroLast roof membrane fastened directly to the building and sealed at each obstruction and roof edges.

  • This method has predictable pre-installation assurance.
  • Each component can be reviewed, and then assembled with guaranteed quality.
  • Insulation: R-value is obtained and installed in accordance with the dew point calculations.
  • Membrane: The DuroLast Membrane is a full 40 mmils thick, polyester reinforced sheet.
  • Roof sections are built to fit your building at a size of up to 2500 square feet.
  • All roof penetrations are addressed with a pre-made flashing that assures consistent quality.
  • Your investment is in the product that remains on your roof - not in excessive labor costs due to system assembly.
  • Edge details: The DuroLast System is integrated and sealed to your gutters.

This information is provided to help review different approaches, sold as solutions for metal buildings. The complete, predictable solution recommended is option #3 -
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