US 5,473,847 A · Ventilated insulated roofing system

Abstract

A ventilated insulated roofing system comprises a rigid roof deck, a roof comprising a rigid roof support member or sheathing which is above and spaced from the roof deck, and an exterior covering layer supported on the sheathing, and an insulation course between the roof deck and the sheathing. The insulation course is preferably a rigid lightweight foamed insulation material comprising an imperforate first portion which rests on the roof deck and a second portion comprising a plurality of spaced projections forming a network of interconnected air channels which are in communication with the under side of the sheathing. The roofing system further includes a course composed of one or more panels along a peripheral edge or portion of the perimeter of the roofing system. Each panel includes a rectangular board, a rigid foam insulation member which comprises a first imperforate portion and a second portion having projections extending from the first portion to the rigid board, forming a network of interconnecting air channels, a horizontally extending vent adhered to the rigid board for admitting air to the under side of the rigid board while excluding moisture, at least one protective air and water impermeable sheet for protecting the insulation member from moisture, and a vent associated with the protective sheet for admitting air to air spaces in the panel and the roofing system while excluding moisture.

Claims14

Dependent claims

A roofing system for a building structure, said roofing system comprising:

(a) a roof deck;
(b) a rigid roof support member above and spaced from said roof deck so as to provide an air space therebetween, said roof support member having opposite upper and lower surfaces, the upper surface being adapted to support a roof covering layer thereon;
(c) a roof covering layer disposed on the upper surface of said roof support member;
(d) at least one panel disposed along at least a portion of a perimeter of said roofing system, said panel being rectangular in shape and comprising:
(1) a rigid, coherent essentially rectangular board having spaced first and second surfaces and a longitudinally extending peripheral edge surface which intersects said first and second surfaces;
(2) a rectangular rigid foam insulation member adhered to the second surface of said board, said insulation member having portions cut away to provide a network of interconnected air channels in communication with the second surface of said board;
(3) protective sheet means including at least one sheet of air and water impermeable material for protecting said insulation member and said peripheral edge surface of said board;
and
(4) a vent associated with said protective sheet means, said vent extending lengthwise in proximity with and substantially parallel to said peripheral edge surface of said board, said vent being adapted to permit the passage of air and water vapor therethrough which excluding moisture.

6 more elements

A panel for installation at a perimeter of a roofing system, said panel being adapted to be installed along a peripheral edge of a roof and in proximity with a vertical exterior surface of a building structure, said panel being of rectangular shape and comprising:

(a) a rigid coherent essentially rectangular board having spaced first and second surfaces and a longitudinally extending peripheral edge surface which intersects said first and second surfaces;
(b) a rectangular rigid foam insulation member adhered to the second surface of said rigid rectangular board, said insulation member being rectangular in shape and having formed therein interconnected air channels which are in communication with said second surface of said board;
(c) protective sheet means including at least one sheet of air and water impermeable material for protecting said insulation member and said peripheral edge surface of said rigid board from moisture;
and
(d) a vent associated with said protective sheet means, said vent extending lengthwise in proximity with and substantially parallel to said peripheral edge surface of said board, said vent being adapted to permit the passage of air and water vapor therethrough while excluding moisture.

2 more elements

Dependencies are inferred from the claim text.

Ventilated insulated roofing system

Life of this patent

Ventilated insulated roofing system

Life of this patent

Abstract

Claims14