Invention Grant
- Patent Title: Roofing products with zones of algae-resistant granules and method of manufacture
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Application No.: US17473718Application Date: 2021-09-13
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Publication No.: US11713579B2Publication Date: 2023-08-01
- Inventor: Xiaofeng Tang , Shuang Liu , Robert L. Jenkins , Mark W. Simon
- Applicant: CertainTeed LLC
- Applicant Address: US PA Malvern
- Assignee: CERTAINTEED LLC
- Current Assignee: CERTAINTEED LLC
- Current Assignee Address: US PA Malvern
- Agency: McDonnell Boehnen Hulbert & Berghoff LLP
- Main IPC: E04D1/00
- IPC: E04D1/00 ; E04D13/00 ; E04D1/26

Abstract:
The present disclosure relates generally to roofing products, for example, suitable for use covering and protecting the roofs of structures. The present disclosure relates more particularly to a roofing product including an upper section and an exposed section. The roofing product includes a substrate having a top surface and a bottom surface, and a plurality of zones of roofing granules disposed on the top surface of the substrate. The plurality of zones includes first, second and third zones within the exposed section. The first zone includes a first collection of algae-resistant roofing granules and has a first algae-resistance intensity. The second zone includes a second collection of algae-resistant roofing granules and has a second algae-resistance intensity. The third zone has a third algae-resistance intensity that is different from the first algae-resistance intensity.
Public/Granted literature
- US20220064956A1 ROOFING PRODUCTS WITH ZONES OF ALGAE-RESISTANT GRANULES AND METHOD OF MANUFACTURE Public/Granted day:2022-03-03
Information query