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This article examines the sometimes devastating effects that hail can have on asphalt shingles wood shingles and shakes and concrete tile shingles by jim d.
Twelfth international roofing and waterproofing conference.
Of hobbs new mexico a roof engineering firm.
The overall results of this research clearly indicate that non reinforced epdm roofassemblies offer a high degree of hail resistance over a variety of substrates.
Home authors authors.
Koontz and vickie crenshaw are consulting engineers with jim d.
Corona virus covid 19 update.
The targets varied in age and substrate.
Combining close to 50 years of experience in hail investigation roof research roof consulting and laboratory analysis of roofing materials they have authored numerous technical articles and.
The 12th international roofing and waterproofing conference was held sept.
What are the effects of hail on residential roofing products.
A roofing consultant firm in new mexico and the cannon group s primary roofing construction materials testing firm united states.
The samples were impacted with ice spheres read more.
He has a bachelor s degree in engineering and a master s degree in business administration from tulane university new orleans.
Koontz associates inc.
Theimpact resistance of both the field aged and heat aged membrane also clearlydemonstrates that epdm retains the bulk of its impact resistance as it ages.
The following article was adapted from a paper that was presented at the thrid international symposium on roofing technology which was held in april.
Koontz p e rrc jim d.
Koontz associates inc.
To perform laboratory testing on 81 test targets provided by the association.
The following are papers that were presented during the conference and their authors names.
Koontz jim d a comparative study of dynamic impact and static loading of one ply roofing assemblies special technical publication 959 american society for testing and materials 1988 page 24.
It came from hail.
A roofing consultant firm that provides material testing as well as other services founded by rene dupuis a noted expert in the field jim koontz associates.
Koontz associates inc hobbs n m.
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25 27 2002 in orlando fla.
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Koontz p e rrc is president of jim d.
