Victor A Stewart

US Patent:

46809090, Jul 21, 1987

Filed:

Sep 11, 1984

Appl. No.:

6/649309

Inventors:

Victor M. Stewart - Redmond WA

Assignee:

Industrial Research Development, Inc. - Redmond WA

International Classification:

E04B 700
E04C 140
E04D 100

US Classification:

52409

Abstract:

A roofing system comprises a plurality of prefabricated panels and spacers. The panels comprise a base member and a lamina covering. The lamina extends from one end of the panel to provide an overlap with an adjacent panel and is spaced inwardly of side edges of the base to form exposed parts. In accordance with the method, a row of prefabricated panels is secured to a roof, and a row of spacers is then applied adjacent the row of panels. A second row of panels is then placed adjacent the row of spacers, and a closure is placed over the spacers and onto a portion of the two rows of panels. The panels, lamina and closure are of readily available, standard sized materials.

US Patent:

47064188, Nov 17, 1987

Filed:

Aug 26, 1986

Appl. No.:

6/900321

Inventors:

Victor M. Stewart - Redmond WA

Assignee:

Industrial Research Development, Inc. - Kirkland WA

International Classification:

E04F 1704
E02B 1110

US Classification:

52 58

Abstract:

A hollow tubular roofing cant has a plurality of perforations for permitting ingress of moisture or gases from the roofing system and a plurality of one-way vents for permitting egress of moisture or gases into the atmosphere. The tubular roofing cant may be of triangular or trapezoidal cross-section.

US Patent:

47064358, Nov 17, 1987

Filed:

Dec 2, 1986

Appl. No.:

6/938722

Inventors:

Victor M. Stewart - Redmond WA

Assignee:

Industrial Research Development, Inc. - Kirkland WA

International Classification:

E04D 128
E04D 335

US Classification:

52533

Abstract:

A prefabricated roofing panel has two opposite parallel edges bevelled at an angle to the top and bottom flat surfaces, and a portion of each bevelled edge is blunt cut adjacent one of the flat surfaces to enable interlocking of the panels. Each panel has a sidelap on one side extending across a bevelled edge, and a headlap at one end. The panels are installed with adjacent bevelled edges in interlocking engagement.