National Coatings Blog

What is the Best Coating to Use for an Aged TPO Roof?

Posted by Nicole Gale on Tue, May 27, 2014 @ 11:00 AM

TPO roofing has been known to be one of the hardest, most stubborn substrates to adhere to. Most roof coating manufacturers require an initial primer or etching rinse to be done before applying a base coat to the TPO membrane. Unfortunately, this adds additional labor time and costs to the roof coating project. National Coatings has made it a point to focus a majority of their efforts on providing durable, waterproofing solution to the roofing community that surpass their competition. With this goal in mind, National Coatings created the AcryShield A502 base coat, which DIRECTLY adheres to aged or failing TPO roofs without an additional primer or etching rinse.

TPO Roof

The AcryShield A502 offers the best solution in the roofing industry for restoring a TPO roof because of its ability to tenaciously and directly adhesion to the TPO membrane. The A502 base coat eliminates the need for a costly roof replacement, lowers project costs and increases job efficiencies. There is no need to capture caustic contaminated water from the primers and etching rinses, which a majority of municipalities require. This provides safer work conditions and is better for the environment. 

To find out more about using the AcryShield A502 water-borne base coat for your next TPO roof restoration project, download our roof maintenance brochure for single-ply or our roof restoration brochure for single-ply.

Get More Info on Direct Adhesion to Aged &  Failing EPDM, TPO & Hypalon

Preserve Existing Single-Ply without Primers Click Here to Learn More!

Tags: Roof Coating Membranes, Roof Coating Systems, Roof Coating, White Roof Coating, Reflective Roof Coating, white roof paint, Reflective Roof Membrane, Reflective Coatings, Reflective Coatings for Roofs, spray on roofing, Coating directly over EPDM, Coating Directly over Hypalon, Coating EPDM, Roof Coatings for EPDM, TPO Roofing, TPO Roof Coating, TPO Roof, TPO Roofing System, Restoring TPO, Restore TPO

Contractors – Do you need to Save Time and Money for your Roofing Company to be Profitable?

Posted by Nicole Gale on Tue, Apr 08, 2014 @ 11:00 AM

roofing company

National Coatings has a roof coating that allows for direct adhesion to hard to coat single-ply surfaces such as TPO, EPDM and Hypalon. The AcryShield A502 base coat is a high performance elastomeric, ultra low VOC, water-borne base coat. This roof coating is ideal for lowering project cost and promoting higher job efficiencies for your roofing company.

Contractors are able to save money and time using the AcryShield A502 base coat by eliminating the following steps:

  • No need for a separate primer prior to applying the base coat
  • No need to do a chemical wash off from the primer
  • No need to capture the harmful chemicals from the primer so they don’t run off into the streets or streams

We offer two different single-ply roofing systems that use the AcryShield A502 base coat. The AcryShield Roof Management (ARM) System is ideal for roof maintenance and the AcryPly All Acrylic Roofing System is ideal for restoring older roofs that have additional aging issues. These systems are excellent for your roofing company because they are easy to install, as they are spray applied. This allows you to cover seams, equipment joints, pipes, etc… creating a seamless, watertight membrane that is custom tailored to meet the specific needs of your clients’ roof. Additionally, these systems are available with a 10, 15 or 20-year warranty.

Click on the hyperlink for more information on our roof maintenance system – ARM Roofing System using A502 or our roof restoration system – AcryPly All Acrylic Roofing System using A502.

Tags: Roof Systems, Roof System, Roof Restoration, title 24 roofing products, Single-Ply Roof Coatings, Commercial Roofing, roof leak repair, Coating directly over TPO, Coating directly over EPDM, Coating Directly over Hypalon, Hypalon Roof Coating, Coating EPDM, Roof Coatings for EPDM, roofing repairs

EPDM Roofing... Answers to your Questions!

Posted by Nicole Gale on Thu, Apr 03, 2014 @ 11:00 AM

EPDM Roofing

What is it? How is it installed? How can it be maintained?

EPDM stands for ethylene, propylene diene monomer. EPDM roofing is a mixture of the EPDM polymer, carbon black pigment, oils and other additives. Besides roofing membranes, EPDM is used to make bicycle inner tubes, and radiator hoses.  

EPDM roofing can be installed in one of three ways: ballasted, mechanically attached and fully adhered. Some jurisdictions will not allow ballasted installations, especially in high wind locations. Extensive damage was experienced in the hurricane that struck Houston several years ago because stone ballast blew off the roofs and broke windows, causing severe wind-blown rain damage.  

Here's a coating opportunity: many building owners are demanding, and some jurisdictions require a "cool roof" or EPA Energy Star® listed reflective roof surface. Since EPDM roofs are black, they are obvious candidates for white reflective coatings to be applied to these new roofs. This creates an immediate opportunity for coating newly installed EPDM roofs.

EPDM roofs deteriorate by membrane erosion, shrinkage and seam failure.   Since the seams are sealed with adhesives or tapes, they are not as strong as "welds", like the thermoplastic single plies discussed in previous issues. Shrinkage occurs when stone ballast on these roofs absorbs oils which are part of the EPDM roof membrane. The resulting shrinkage stresses seams and tears the membrane away from mechanically fastened termination bars.  

EPDM roofing can be easily maintained. To achieve acceptable adhesion of a maintenance coating to the EPDM, some coating manufacturers require a pretreatment of a corrosive, very high pH "prerinse" or "rinseable primer" to be applied prior to applying the base coat. The effluent may be harmful to the environment and ground water. National Coatings Corporation has resolved this problem by eliminating the need for the corrosive rinseable primer. This reduces the installed cost, eliminating a time consuming and labor intensive step. The labor savings will add increased profits for the contractor.

Besides the elimination of the need for the rinseable primer, National Coatings Corporation has developed a high performance primer, AcryShield A502, designed to give excellent adhesion to EPDM roofing.  Specific details for these systems formatted as a three part CSI specification are found in the links below: Check out a few of our fully restored EPDM roofs that used our AcryShield Roof Maintenance System
Get More Info on Direct Adhesion to Aged &  Failing EPDM, TPO & Hypalon

Tags: Roof Coating Membranes, Roof Coating Systems, Roof Coating, Reflective Roof Coating, Single-Ply Roof Coatings, Coating directly over EPDM, EPDM Roofing, Coating EPDM, Roof Coatings for EPDM