Exterior insulating sheathing
US4786547A · kind A · utility
31Cited by
11References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1987 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Apr 9, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31819
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
An exterior insulating sheathing which comprises a foam polystyrene ply and a second ply glued to said polystyrene ply throughout. The second ply is preferably a fiberboard but may also be a waferboard. The sheathing is nailable, has a racking load of about 1900 to 3700 lbs, and has at least he exposed side of the second ply water resistant. This sheathing has a minimum tensile strength of 65.+-.14 kPa, a linear expansion at 97% RH and 23.degree. C., of less than 0.40%.+-.0.02, a water vapor transmission of at least 96.sup.ng.Pa.s.m.sup.2, and a modulus of rupture of 0.5 to 17.2 megaPascal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.