Commercial Roof Coatings
Do roof coatings extend the lifespan of your commercial roof? Before apply roofing coating consult with a roofing professional. Call 877-220-4590.
Before choosing a roof coating, it’s important to consider factors such as the strength of the manufacturer’s warranty, how much repair work is required to repair the leaks and defects in the roof before the coating can be applied, whether the coating is reinforced to give it any tensile strength, the ability of the coating to hold up to ponding water, and the dry film thickness of the roof coating. Thoroughly reviewing manufacturer’s documentation (tech data sheets and warranty) and consulting a knowledgeable roofing professional can help determine the suitability of a roof coating for your needs.
Manchester Roofing Systems is a commercial roofing contractor. We install, maintain, and repair commercial, industrial, and institutional flat and low-slope roofing systems in the Tri-State area (PA, NJ, DE).
Our commercial roofing services include:
It all begins with a free roof inspection. Every roof is different, so we’ll give you all the options you need to make the best choice for you and your budget. We’ll go over all the issues you have and the solutions we have for them.
- Roof Repair
- Roof Replacement
- Roof Coatings
- Roof Maintenance
Schedule a Free Inspection with a Commercial Roofer
Whether you’re looking for a quick leak repair or a roof replacement, we can help you. Our commercial roofing experts have served businesses all across PA, NJ, and DE.
SERVICE OVERVIEW:
About Roof Coatings
While most roof coatings are advertised to imply they will easily make a leaky flat commercial roof waterproof again, as with most things, the difference is in the details.
GAF, the largest roofing materials manufacturer in the United States, puts it very succinctly on Page 5 of its Liquid-Applied Roofing Manual:
“When installed on an existing roof, a roof coating should only be applied to non-leaking roofs. While coatings may help seal some pinhole leaks not visible to the naked eye, they will not generally find and repair existing leaks. Accordingly, existing roof leaks will need to be identified and repaired prior to coating.”
Here are some the items that are also often required as part of a (weakly) warranted roof coating system:
- Repair the roof so that the roof does not pond water
- Conduct a moisture survey
- Remove and replace any areas of wet insulation or cover board
- Fill gaps larger than 1/16” with flashing grade material
- Repair existing roof membrane with like materials
- Perform an adhesion test
- Pressure wash with cleaner up to 3X
- Treat any algae, mildew or fungus
- Seal seams, flashings, and penetrations
- Apply Primer coat @ 50° and rising with no dew, frost, fog, or rain forecast for 2-8 HR
- Apply base coat @ 50° and rising with no dew, frost, fog, or rain forecast for 2-8 HR
- Apply top coat @ 50° and rising with no dew, frost, fog, or rain forecast for 2-8 HR
- Seal gutters
- Cap pitch pans with metal
- Install condensate lines from HVAC units to gutters and fasten to roof
Types of Roof Coatings
Here are some of the most commonly available types of roof coating:
Acrylic Roof Coatings
(i.e. – GAF Acrylic Top Coat https://fliphtml5.com/htrxm/abbo):
- For use on metal, concrete, TPO, PVC, Hypalon, SPF, EPDM and asphalt roof systems
- Water-based elastomeric
- 53% solids
- 3 YR Solar Reflectance Index (SRI) – 87 (White roof coatings are reflective so they are energy efficient by helping keep the building cooler)
- Takes 28 days to fully cure and is to have any standing water on it removed during the curing period
- Does not hold up to ponding water even after cured
- Prone to peeling and cracking
- Typically unreinforced so low strength
Asphalt Emulsion Roof Coatings
(i.e. Johns Manville Asphalt Emulsion Roof Coating – https://www.jm.com/en/commercial-roofing/coatings/asphalt-emulsion-roof-coating/):
- For use with asphalt-based roof systems
- Asphalt-based clay emulsion
- Water based, low VOC and UV resistant.
- Mineral-fiber reinforced
- 51% solids
- Flexible at 32° F
- Breathable; allows water vapor to escape
- Roof must be swept clean and free from oils and loose material
- 3 YR Solar Reflectance Index (SRI) – N/A (Black coatings absorb about 95% of the sun’s heat).
- Requires bituminous primer
- Requires rain & frost-free for 24 HR after application
- Typically unreinforced so low strength
Silicone Roof Coatings
(i.e. Gaco S42 https://gaco.com/product/gacoflex-s42/#product-tabs):
- For use on metal, concrete, TPO, PVC, Hypalon, SPF, EPDM and asphalt roof systems less than 25 YR old having a minimum slope of 2%
- High solids elastomeric silicone
- 95% solids
- 3 YR Solar Reflectance Index (SRI) – 66 (White roof coatings are reflective so they are energy efficient by helping keep the building cooler).
- Reduce heat absorption, keeping the building cooler and potentially lowering energy costs.
- Overspray hazard within 400 FT of application
- Nuclear or infrared scan required
- Wet roofing materials must be removed and replaced
- All air intake must be off to prevent fumes from entering building
- Roof membranes with exposed reinforcing are disqualified
- Roof membranes that have shrunk or are brittle are disqualified
Before choosing a roof coating, it’s important to consider factors such as the strength of the manufacturer’s warranty, how much repair work is required to repair the leaks and defects in the roof before the coating can be applied, whether the coating is reinforced to give it any tensile strength, the ability of the coating to hold up to ponding water, and the dry film thickness of the roof coating. Thoroughly reviewing manufacturer’s documentation (tech data sheets and warranty) and consulting a knowledgeable roofing professional can help determine the suitability of a roof coating for your needs.
About Manchester Roofing Systems
Manchester Roofing Systems is a Better Business Bureau A+ rated Duro-Last Master Contractor based in West Caln, PA on the eastern edge of Lancaster County. Manchester Roofing System’s location affords both low-overhead & good highway access to a large portion of the mid-Atlantic region including PA, NJ, DE & MD. Manchester Roofing Systems is a commercial roofer & industrial roofer and specializes in commercial roofing, industrial roofing, flat roofing & low-slope roofing.
Manchester Roofing Systems can be reached at 877-220-4590.
Duro-Last is a pre-fabricated and reinforced PVC single-ply system that is the World’s Best Roof®.
Gaco is the leading manufacturer of high-adhesion advanced silicone roof coating systems.
Astec is a reinforced fluid-applied roofing system
GAF is the largest roofing manufacturer in the US and offers all major commercial flat roof systems.
Affordable Roof Repair, Newark, NJ
Affordable roof repair is all about finding the right balance between quality and cost. Start with your Free Roof Inspection provided by Manchester Roofing Systems. Click here to fill out our contact form to schedule an appointment.
Affordable Commercial Roofer, Newark, NJ
Manchester Roofing Systems provides commercial roofing services at competitive prices.
Remember, investing in timely repairs can prevent more extensive and expensive damage down the road. So, even if you’re looking for affordability,