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US 10,704,266 B1Granted
Roofing components comprising a UV treated polyethylene thermoplastic and a method and an apparatus for manufacturing the same
OwnerMichael John McDonoughinventor
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Abstract
A roofing component formed of polyethylene thermoplastic treated to prevent degradation due to exposure to ultraviolet (UV) light and an apparatus and method of forming the same. The UV treatment may include one or more of a UV absorber and a UV inhibitor. In one embodiment, the UV absorber comprises carbon black that is mixed with the polyethylene thermoplastic. The roofing component can comprise step flashing or a shingle.
Claims20
A step flashing card, comprising:
- a sheet of a polyethylene thermoplastic comprising less than approximately 3 wt. % of a carbon black ultraviolet (UV) absorber, wherein the sheet consists of a single layer of the polyethylene thermoplastic.
A piece of step flashing, comprising,
- a body that is generally rectangular, the body formed of a single layer of a polyethylene thermoplastic including from approximately 0.1 wt. % to approximately 5 wt. % carbon black;
- a first section of the body having a first color;
- and
- a second section of the body having a second color.
1 more element
Dependencies are inferred from the claim text.