citeseerx p 9 4 hail damage to asphalt roof

CiteSeerX — P 9.4 HAIL DAMAGE TO ASPHALT ROOF

CiteSeerX Document Details Isaac Councill, Lee Giles, Pradeep Teregowda : Controversies can arise with regard to how asphalt shingles are damaged by hail, and what hail damage actually looks like. More specifically, questions have

P 9.4 HAIL DAMAGE TO ASPHALT ROOF SHINGLES

2. HAIL DAMAGE DEFINITION Morrison 1999 defined damage to roofing as a diminution of water-shedding capability or a reduction in the expected long-term life of the roofing material. Marshall and Herzog 1999 more specifically defined functional hail-caused damage to asphalt shingles as punctures, tears, or fractures bruises in the shingle

Hail Damage: Roof Inspection Guide With Pictures

Feb 03, 2017· Four months following a hail storm in my city on 5/17/2017, The roofing contractor indicated that my roof has sufficient hail damage and we filed a claim. My insurance, following the first inspection claimed there is only damage on skylight, and slight damage on metal vents.

Asphalt Roof Shingle Storm or Hail Damage Identification

Hail-damaged asphalt roofing: For asphalt shingle roofs or roll-roofing or mineral-granule coated modified bitumen covered roofs, continue hail damage investigation by looking in your roof gutters and on the ground for large amounts of mineral granules lost from the roof. And if you are on-site during the hail storm, record the storm details: storm duration, hail size, wind direction, if you can.

P 9.4 HAIL DAMAGE TO ASPHALT ROOF SHINGLES core.ac.uk

By Timothy P. Marshall, Richard F. Herzog and Scott J. Morrison Abstract Controversies can arise with regard to how asphalt shingles are damaged by hail, and what hail damage actually looks like.

PDF Hail damage to asphalt roof shingles ResearchGate

PDF | In this paper, the authors will review the definition of hail damage to asphalt shingles and explain the characteristics of such damage. We also will present the results of our ten-year...

Effects of Hail on Roofing Industrial and Commercial Roofing

Morrison Scott. LONG-TERM EFFECTS OF HAIL IMPACT ON ASPHALT SHINGLES—AN INTERIM REPORT Haag Global. N.p., 2016. Web. 23 Apr. 2016 Petty, Stephen. Evaluation Of Hail-Strike Damage To Asphalt Shingles Based On Hailstone Size, Roof Pitch, Direction Of Incoming Storm, And Facing Roof.

P9.4 Hail damage to asphalt roof shingles (2004

22nd Conference on Severe Local Storms. P9.4. Hail damage to asphalt roof shingles. Timothy P. Marshall, Haag Engineering Co., Carrolloton, TX; and R. F. Herzog and S. Morrison. This paper will summarize various tests that the authors have conducted with regard to determining hail damage to asphalt shingles.

P9.3 HAIL DAMAGE TO BUILT-UP ROOFING Confex

P9.3 HAIL DAMAGE TO BUILT-UP ROOFING Timothy P. Marshall* and Scott J. Morrison Haag Engineering Co. Dallas, Texas 1. INTRODUCTION Built-up roofs account for a large percentage of the commercial roofing systems in the United States. Such systems are comprised of asphalt-coated glass

Asphalt Roofing: Wind or Hail Damaged vs.

1 | P a g e Hail Evaluation There seems to be two camps of thinking with regards to what people perceive to be hail damage to asphalt shingles. Both camps agree that mat fracture, punctures, and bruising is damage caused by hail. Some strongly believe granule loss

CatAdjuster.org An Adjuster to Adjuster Community

"A protocol has been developed for assessing hail-impact damage to steep-slope roof systems. The protocol includes a definition of hail-caused damage to roofing, a detailed field inspection procedure, and a calculation method for determining repair or replacement of hail-damaged roofing

PDF HAIL DAMAGE THRESHOLD SIZES FOR COMMON ROOFING

P 3.2 HAIL DAMAGE THRESHOLD SIZES FOR COMMON ROOFING MATERIALS Timothy P. Marshall*, Richard F. Herzog, Scott J. Morrison, and Steven R. Smith Haag Engineering Co. Dallas, Texas 1. INTRODUCTION As expected, there is considerable variation in the size hail necessary to damage a specific roofing product.

P 3.2 HAIL DAMAGE THRESHOLD SIZES FOR

Hail damaged asphalt shingle roof from the Fort Worth, Texas hailstorm on May 5, 1995. Large hailstones are shown in the inset photograph. Huge annual insurance losses from hail have led to a roof classification system in Texas where roofing products are rated on a scale from 1 to 4 depending on their impact resistance to steel balls.

PDF HAIL DAMAGE TO TILE ROOFING ResearchGate

The solidly supported areas of roofing tend to be the most resistant to hail damage. Heavier shingles tend to be more hail-resistant than Type 235 shingles. Weathering tends to lower the hail...

UL 2218 CLASS 4 IMPACT RESISTANT HIP AND RIDGE

UL 2218 testing has four levels or classes, with Class 4 being the most rigorous. For Class 4 impact testing, a 2-inch steel ball weighing approximately 536 grams 1 lb. 3 oz. is dropped onto a shingle assembly from a height of 20'.

4 Ways to Repair Hail Damage wikiHow

Mar 29, 2019· To repair hail damage on a car, try parking your car in the sun for several hours. The heat from the sunlight will cause the metal to expand, which may pop the dents out naturally. If you don’t have access to much sunlight, hold a hair dryer 5 to 7 inches from the dents and heat them in 2-minute intervals until they pop out.

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P9.3 Hail Damage to Built-up Roofing 2004 11aram22sls

Damage appeared as a "donut-shaped" crater in the roof where the gravel and asphalt surfacing were removed and the roofing felts were ruptured. In no instance was the gravel driven downward into the roofing felts. Extended Abstract (1.3M Poster Session 9, Flooding and Hailstorms Wednesday, 6 October 2004, 3:00 PM-4:30 PM Previous paper Next paper

30 Proceedings of the North American Conference on

tional damage—for laboratory analyses of asphalt shingles in which reinforcements are solvent-extracted for examina-tion—to include strain [permanent deformation] in the reinforcement over an area greater than 1⁄ 4 inch [6 mm] in diameter. This is a rare circumstance detectable only in extracted reinforcements.) ASPHALT SHINGLES USED FOR TESTING

Ondura 4-ft x 6.58-ft Corrugated Asphalt Roof Panel

Lightweight and easy to trim, Ondura roofing has no sharp edges and will not corrode. Each sheet can cover over 26 Sq. Ft. and with overlap, 4.5-sheets will cover one square. Ondura corrugated asphalt roofing offers a unique look for your roofing project while not resonating noise or radiating heat.

Henry 201 4.75 Gal. Fibered Asphalt Roof Coating

201 4.75 Gal. Fibered Asphalt Roof Coating is rated 4.2 out of 5 by 39. Rated 3 out of 5 by from needed a heater to use as a liquid after half... needed a heater to use as a

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