Impact resistant roofing systems and methods
AssigneeBmic LLC
InventorsYan Zheng, Adem Chich, Yixi Xiao
Life of this patent
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Abstract
A hail resistant roofing system and method includes a roofing substrate such as a shingle or tile or membrane having an array of exposed upwardly projecting features. The features may rise to sharp points and may have side surfaces that are angled relative to the plane of the roofing substrate. The features are spaced and arranged so that a large hail stone capable of damaging the roofing substrate will always impact one or more of the exposed features. This can break up the hail stone into smaller benign pieces or can redirect the energy and direction of the hail stone so that the impact is absorbed without damage to the roofing substrate.
Claims20
A roofing system, comprising:
- a deck;
- a substrate positioned over the deck, the substrate including:
- an upper surface exposed to an outer environment;
- and
- a plurality of surface features positioned across the upper surface;
- wherein the substrate comprises a roofing membrane;
- wherein the surface features are exposed to the outer environment and are arranged across the upper surface so as to intercept an object striking the substrate;
- wherein each of the surface features comprises an impact resistant material and is configured to reduce an energy of an impact of the object striking the substrate;
- wherein the surface features comprise hemispherical, pyramid, or triangular shaped structures, or combinations thereof, and have a height of ¼ inches to 6 inches above the upper surface of the substrate;
- and
- an underlayment positioned between the substrate and the deck.
A roofing system, comprising:
- a deck;
- a substrate positioned over the deck, the substrate comprising a roofing membrane including:
- a first surface exposed to an outer environment and a second surface in contact with the deck;
- and
- a plurality of surface features positioned across the first surface of the roofing membrane, the surface features comprising sloped, conical, angled, rounded, or pointed structures, or combinations thereof;
- wherein the surface features are exposed to the outer environment and are arranged across the first surface so as to intercept an object striking the substrate;
- wherein each of the surface features comprises an impact resistant material and is configured to reduce an energy of an impact of the object striking the roofing membrane;
- wherein the surface features comprise a height of ¼ inches to 6 inches above the first surface of the roofing membrane;
- wherein the surface features are spaced apart by a distance based upon a selected range of sizes of the object striking the substrate and a strength of the impact resistant material of the surface features.
A roofing system, comprising:
- a deck;
- a substrate positioned over the deck, the substrate comprising a roofing shingle including:
- a first surface exposed to an outer environment and a second surface in contact with the deck;
- and
- a plurality of surface features positioned across the first surface of the roofing shingle;
- wherein the surface features are exposed to the outer environment and are arranged across the first surface so as to intercept an object striking the substrate;
- wherein each of the surface features comprises an impact resistant material and is configured to reduce an energy of an impact of the object striking the roofing shingle;
- wherein the surface features comprise hemispherical, pyramid, or triangular shaped structures, or combinations thereof, and have a height of ¼ inches to 6 inches above the first surface of the roofing shingle.
Dependencies are inferred from the claim text.