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Here’s Why WeatherWeld Is Not Just
Your Best Roof, But Your Last Roof

Only WeatherWeld technology provides a roof solution with no seams, no joints, no leaks. Unlike other roof types that provide potential openings for water to penetrate, it’s designed for a total line of defense that can outlive your building. Make the comparisons, and you’ll agree that WeatherWeld is simpler, stronger, better.

MORE SEAMS
LESS SEAMS
NO SEAMS

Performance Metrics

Many factors affect the quality and reliability of your roof, from its strength and stretch, to the load strain, thickness and the detail that goes into the installation. Not only does the WeatherWeld roof system provide seamless coverage that eliminates leaks, but it also shows its superiority in a wide range of key performance categories. We invite you to review the industry comparison numbers that bear out the wisdom of selecting a long-lasting WeatherWeld roof.

Investment

Reducing the labor cost portion gives you more value for the price. And because WeatherWeld manufactures its product on-site to eliminate middle man fees and puts a greater percentage of its cost into the all-important raw materials, rather than permits, taxes and other overhead, you get a better quality roof for less money. The following graphs show the average percentage investment spent on labor costs versus materials for the most common commercial roofs.

Longevity

 

Stretch

Roof material is tested at 77 degrees Fahrenheit, stretched 1 inch per minute, to project its performance under years of stress – the higher the percentage, the better.

Strength

Historically roofs have been required to have at least 200 lbs. of strength per inch of width to avoid failure, which typically occurs on West Coast buildings at approximately 125 lbs.

Trouble Free

 

Combined Thickness

Strength, thickness, and flexibility are critical factors for long-term durability.

Load Strain / Trouble Free Life

Stretch fatigues like a rubber band. Strength resists strain without stretch, like steel. Thus, higher load strain numbers indicate longer life, without system fatigue.

Installation Time

 

On-Site Installation Time

Based on a 30,000 sq. ft. building, with 2 ACs, skylights, ventilation and lighting – 5 installers.

Weight per Sq. Ft.

The key to safety is to use a roof material that is very strong, yet doesn’t overburden the structure.

WeatherWeld 30 yearModified Bitumen (APP)Modified Bitumen (SBS)
ConstructionReinforced Self Sealing Seamless Composite3 Ply Laminated All Modified Materials3 Ply Laminated All Modified Materials
WaterproofingWeathering Grade Bentonite Protected Pure AsphaltAsphalt with APPAsphalt with SBS
ReinforcementMultifilament Omni-Directional Long Strand FiberglassPolyester / FiberglassPolyester / Fiberglass
Thickness* (1/100")280180180
Load Strain**300018001600
Tear Strength x Elongation300 x 10180 x 10160 x 10
Odorless / Safe / No DisruptionOdorless, Cold, No Noise, or DisruptionTorch, Solvent, or Hot AsphaltSolvent or Hot Asphalt
Fireproofing Safety Retained***Yes, UL Class A Fire RatingMay not. (NRCA Bulletin Regarding Fire Ratings)May not. (NRCA Bulletin Regarding Fire Ratings)
Warranty CoverageLeak Trigger Full Coverage, No Exclusions For Standing Water, Repairs, Maintenance, TransfersDefective Wear Trigger, Excluded CoveragesDefective Wear Trigger, Excluded Coverages
Warranty Period25 Years20 Years20 Years
Cost Per Mil. of Roof Installed (Based on WeatherWeld 40)1.39x2.16x2.16x

WeatherWeld 30 yearBuilt-Up 3 Ply CapsheetBuilt-Up 4 Ply Capsheet
ConstructionReinforced Self Sealing Seamless Composite3 Ply Laminated4 Ply Laminated
WaterproofingWeathering Grade Bentonite Protected Pure AsphaltAsphalt with APPHot or Solvent AsphaltHot or Solvent Asphalt
ReinforcementMultifilament Omni-Directional Long Strand FiberglassSingle Fine Filament FiberglassSingle Fine Filament Fiberglass
Thickness* (1/100")280155240
Load Strain**3000320400
Tear Strength x Elongation300 x 10160 x 2200 x 2
Odorless / Safe / No DisruptionOdorless, Cold, No Noise, or DisruptionTorch, Solvent, Solvent or Hot Asphalt or Hot AsphaltSolvent or Hot Asphalt
Warranty CoverageLeak Trigger Full Coverage, No Exclusions For Standing Water, Repairs, Maintenance, TransfersDefective Wear Trigger, Excluded CoveragesDefective Wear Trigger, Excluded Coverages
Warranty Period25 Years15 Years20 Years
Cost Per Mil. of Roof Installed (Based on WeatherWeld 40)1.39x2.51x1.62x
WeatherWeld 30 yearSingle Ply PVC 60 Mill & BoardSingle Ply TPO 60 Mill & BoardBuilt-Up 4 Ply Capsheet
ConstructionReinforced Self Sealing Seamless CompositeSingle Layer Hot Air Seam Sealed4 Ply Laminated
WaterproofingWeathering Grade Bentonite Protected Pure AsphaltPVC PlasticHot or Solvent Asphalt
ReinforcementMultifilament Omni-Directional Long Strand FiberglassPolyester / FiberglassSingle Fine Filament Fiberglass
Thickness* (1/100")28060240
Load Strain**30001000400
Tear Strength x Elongation300 x 10100 x 10200 x 2
Odorless / Safe / No DisruptionOdorless, Cold, No Noise, or DisruptionToxic Fumes Melting Seams, 900 degree Fahrenheit Heat on Roof, Screw NoiseSolvent or Hot Asphalt
Fireproofing Safety Retained***Yes, UL Class A Fire RatingMay not. (NRCA Bulletin Regarding Fire Ratings)Defective Wear Trigger, Excluded Coverages
Warranty CoverageLeak Trigger Full Coverage, No Exclusions For Standing Water, Repairs, Maintenance, TransfersDefective Wear Trigger, Excluded Coverages20 Years
Cost Per Mil. of Roof Installed (Based on WeatherWeld 40)1.39x6/51x1.62x

*Not including granules or reflective coating
**Tear strength x usable elongation. Weakest strength between field or seam used. Elongation greater than 10% considered the practical limit of use on typical roof decks
***Based on 1996-2006 MWRCA & NRCA Aged Fire Rating Loss Studies. Results are representative. Check with Manufacturer to determine results of individual products.