Impact resistant roofing systems and methods

Patent metadata

Field	Value
Publication number	US-11085189-B2
Application number	US-202117147039-A
Country	US
Kind code	B2
Filing date	Jan 12, 2021
Priority date	Jan 13, 2020
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

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.

First claim

What is claimed is:

1. A roofing system, comprising:
a deck;
a roofing material positioned on the deck and having a plurality of layers, the plurality of layers comprising:
a first layer comprising a thermoplastic polyolefin membrane;
a second layer attached opposite the first layer and attached to the deck; and
a third layer positioned between the first and second layers so as to define a plurality of pockets within the roofing material, the pockets receiving a filler material therein;

wherein the filler material is configured to move within each of the plurality of pockets sufficient to reduce an energy of an impact of an object striking the roofing system.

2. The roofing system of claim 1 , wherein the first layer comprises a watershedding surface.

3. The roofing system of claim 1 , wherein the filler material is a particulate filler.

4. The roofing system of claim 1 , wherein the filler material comprises sand, ground tire rubber, ground recycled asphaltic shingles, rice hulls, clay granules, or combinations thereof.

5. The roofing system of claim 1 , wherein the filler material comprises a gel, a foamed material, or combinations thereof.

6. The roofing system of claim 1 , wherein the filler material comprises at least one of a color, a tint a hue, or combination thereof adapted to provide a visual indication of damage to the roofing system.

7. The roofing system of claim 1 , wherein the second layer comprises a thermoplastic polyolefin membrane.

8. The roofing system of claim 1 , further comprising an underlayment positioned between the roofing material and the deck.

9. The roofing system of claim 1 , wherein the pockets and filler material below an impact site are adapted to deform in response to the impact of the object to absorb or dissipate at least a portion of the energy from the impact.

10. The roofing system of claim 1 , wherein the object is hail.

Assignees

• Building Mat Investment Corp

Inventors

• Zheng Yan
• Chich Adem
• Xiao Yixi
• Anderson Eric R
• Zarate Walter

Classifications

• B32B2419/06

  Roofs, roof membranes · CPC title

• B32B3/28

  characterised by a layer comprising a deformed thin sheet {, i.e. the layer having its entire thickness deformed out of the plane}, e.g. corrugated, crumpled (B32B29/08 takes precedence) · CPC title

• B32B2307/56

  Damping, energy absorption · CPC title

• B32B7/05

  the layers not being connected over the whole surface, e.g. discontinuous connection or patterned connection (using interposed adhesives or bonding materials applied in spaced arrangements B32B7/14) · CPC title

• B32B2307/558

  Impact strength, toughness · CPC title