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Impact Resistant Shingle

a technology of impact resistance and shingle, which is applied in the field of shingle, can solve the problems of cracks that can develop in the lower surface of the shingle, and achieve the effect of resisting cracking and discharging mechanical energy

Inactive Publication Date: 2010-04-22
CERTAINTEED CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The modified asphaltic material effectively dissipates mechanical energy, preventing cracks on the lower surface of the shingle even under severe impact conditions, while maintaining non-adhesiveness to prevent sticking issues during handling and installation.

Problems solved by technology

It has been found that when shingles that have been installed on a roof are subjected to various kinds of impacts, such as falling tree branches, workman walking on the shingles, or hail stones striking the shingles, especially during cold weather conditions, cracks can develop in the lower surface of the shingle as a result of such impacts.

Method used

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Examples

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Embodiment Construction

[0023]Referring now to the drawings in detail, reference is first made to FIG. 1, wherein a shingle is shown, generally designated by the numeral 10. The shingle 10 is comprised of an upper headlap portion 11 and lower tab portions 12, with the tab portions being four in number. The various tab portions 12 are spaced apart by slotted openings 13.

[0024]The upper headlap portion 11 is that which is disposed above the upper ends of the slotted openings 14. Left and right edges 15 and 16, respectively, of the shingle 10 have partial cut-outs 15a and 16a, respectively, such that when shingles 10 are aligned left-to-right, portions of slotted openings 15a and 16a will come together forming full slotted openings.

[0025]With reference to the shingle of FIGS. 2 and 2A, the shingle 10 has respective upper and lower surfaces 7, 8 and is comprised of a base mat 17 of preferably fiberglass mat construction, although the same can be comprised of organic mat, or fibered polymeric mat construction (...

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Abstract

An impact resistant shingle is provided, wherein the base mat is impregnated with an asphaltic material, with an asphaltic material on the upper surface of the shingle, and wherein another asphaltic material is disposed on the rear surface of the shingle, which other asphaltic material is softer with greater elongation than the asphaltic material used elsewhere in the shingle, such that crack resistance is afforded because energy from impact on the shingle is dissipated.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This is a continuation of U.S. application Ser. No. 11 / 021,573 filed Dec. 23, 2004, which is a continuation-in-part of U.S. application Ser. No. 10 / 871,911, filed Jun. 18, 2004, now U.S. Pat. No. 7,118,794, which in turn is a continuation of Ser. No. 10 / 288,747, filed Nov. 6, 2002, now U.S. Pat. No. 6,758,019, the complete disclosures of all of which are herein incorporated by reference.BACKGROUND OF THE INVENTION[0002]It is known in the shingle art that today's shingles are generally made of a base mat of fibrous construction, most usually of fiberglass construction, that is impregnated with an asphaltic material. The asphaltic material, generally bitumen, of some formulation is disposed on the upper surface of the base mat, and serves to adhere a layer of mineral granules into the asphaltic material on the upper surface of the base mat. Generally such occurs over the entirety of the upper surface of the shingle, but, such mineral granul...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D06N5/00B32B11/02E04D1/00E04D1/26
CPCB32B11/02B32B2395/00Y10T428/24372E04D2001/005E04D1/26B32B2260/021B32B2260/042B32B11/04B32B11/12B32B2419/06
Inventor SNYDER, RICHARD ALLANKALKANOGLU, HUSNU M.JACOBS, GREGORY F.
Owner CERTAINTEED CORP
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