High-strength wind load-resistant lightweight cementitious soffit assembly
US10760278B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2019 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Mar 25, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE04D13/178
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A fiber cement soffit comprising a first major face, a second major face, an intermediate portion positioned between the first and second faces and an edge portion surrounding the intermediate portion such that the first and second faces, intermediate portion and edge portion together form a panel of predetermined thickness; and a plurality of apertures extending between the first and second major faces of the soffit through the predetermined thickness forming a vented portion wherein the apertures comprise between approximately 8% and 28% of the total surface area per linear foot of each of the first major face and second major face of the vented portion such that the net free ventilation provided per linear foot of the fiber cement soffit is between 10 and 16 square inches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.