Roof construction of corrugated sheets

• US 5,765,329 A
• Filed: 07/31/1997
• Issued: 06/16/1998
• Est. Priority Date: 06/28/1993
• Status: Expired due to Fees

• Current Assignee: Chihshu Huang
• Original Assignee: Chihshu Huang
• Inventors: Huang, Chihshu
• Primary Examiner(s): Friedman, Carl D.
• Assistant Examiner(s): WILKENS, KEVIN DOUGLAS
• Application Number:
  US08/904,294
• Time in Patent Office: 320 Days
• Field of Search: 52/57, 52/198, 52/199, 52/302.1, 52/302.3, 52/302.7, 52/630, 52/674, 52/783.1, 52/783.11, 52/783.14, 52/783.15, 52/783.16 , 52/798.1, 52/799.1, 52/799.11, 165/47, 165/49, 165/53, 165/54, 165/56, 165/57, 454/339, 454/365, 454/366, 454/367, 454/368
• US Class Current: 52/302.3
• CPC Class Codes: E04D 13/165 Double skin roofs
• CPC Class Codes: E04D 13/17 Ventilation of roof coverings not otherwise provided for ventilation of rooms or spaces F24F
• CPC Class Codes: E04D 3/30 of metal
• CPC Class Codes: F24F 7/02 Roof ventilation ventilation of roof coverings E04D

Abstract

A roof construction includes spaced apart corrugated sheets held in spaced relationship by a plurality of spacers, the corrugated sheets both including apertures for dissipating heat contained in the hot air between the sheets into atmosphere and for guiding hot air from below the lower sheet into the space between the sheets for ultimate expansion and discharge into atmosphere. The apertures may be offset to prevent flow of moisture directly through the apertures and other devices may be utilized to prevent direct flow of moisture into the space below the roof assembly.

Claims

1. A roof construction comprising:

a first corrugated sheet and a second corrugated sheet disposed below said first corrugated sheet;

a plurality of spacers separating said first and second corrugated sheets to provide an airflow cavity therebetween, said plurality of spacers being disposed transversely to directions of corrugation of said first and second corrugated sheets;

a heat exchange means formed directly in said first and second corrugated sheets for dissipating any heat contained in any hot air located between said first and second corrugated sheets into atmosphere by said first corrugated sheet and for guiding any hot expanded air upwardly from below said second corrugated sheet to flow between said first and second corrugated sheets and to be ultimately discharged into the atmosphere;

wherein said heat exchange means includes a first plurality of apertures disposed in said first corrugated sheet and a second plurality of apertures disposed in said second corrugated sheet;

wherein each of said apertures has an annular flange disposed around the aperture; and

wherein a cap is disposed in each of the annular flanges to cover the top of the aperture, said cap having openings on lateral walls to allow air flow.

2. A roof construction comprising:

a first corrugated sheet and a second corrugated sheet disposed below said first corrugated sheet;

a plurality of spacers separating said first and second corrugated sheets to provide an airflow cavity therebetween, said plurality of spacers being disposed transversely to directions of corrugation of said first and second corrugated sheets;

a heat exchange means formed directly in said first and second corrugated sheets for dissipating any heat contained in any hot air located between said first and second corrugated sheets into atmosphere by said first corrugated sheet and for guiding any hot expanded air upwardly from below said second corrugated sheet to flow between said first and second corrugated sheets and to be ultimately discharged into the atmosphere;

wherein said heat exchange means includes a first plurality of apertures disposed in said first corrugated sheet and a second plurality of apertures disposed in said second corrugated sheet; and

wherein said first and second corrugated sheets have a plurality of peak and valley corrugations, and wherein the peaks of the first and second corrugations have a plurality of upwardly protrusive bulges, said apertures being disposed on lateral walls of the bulges.

3. A roof construction comprising:

a first corrugated sheet and a second corrugated sheet disposed below said first corrugated sheet, said first and second corrugated sheets having a plurality of peak and valley corrugations;

a plurality of spacers separating said first and second corrugated sheets to provide an airflow cavity therebetween, said plurality of spacers being disposed transversely to directions of corrugation of said first and second corrugated sheets;

a heat exchange means formed directly in said first and second corrugated sheets for dissipating any heat contained in any hot air located between said first and second corrugated sheets into atmosphere by said first corrugated sheet and for guiding any hot expanded air upwardly from below said second corrugated sheet to flow between said first and second corrugated sheets and to be ultimately discharged into the atmosphere;

wherein said heat exchange means includes a first plurality of apertures disposed in said first corrugated sheet and a second plurality of apertures disposed in said second corrugated sheet, and

wherein both said first plurality of apertures and said second plurality of apertures are disposed on said valleys of said first and second corrugated sheets, and wherein an annular flange is disposed around each aperture of said first and second plurality of apertures; and

wherein a cap is disposed on each of the annular flanges to cover the top of the apertures, said cap having openings on lateral walls to allow air flow.

4. A roof construction comprising:

a first corrugated sheet and a second corrugated sheet disposed below said first corrugated sheet, wherein said first and second corrugated sheets have a plurality of peak and valley corrugations;

a plurality of spacers separating said first and second corrugated sheets to provide an airflow cavity therebetween, said plurality of spacers being disposed transversely to directions of corrugation of said first and second corrugated sheets;

a heat exchange means formed directly in said first and second corrugated sheets for dissipating any heat contained in hot air between said first and second corrugated sheets into atmosphere by said first corrugated sheet and for guiding hot expanded air upwardly from below said second corrugated sheet to flow between said first and second corrugated sheets and to be ultimately discharged into the atmosphere;

wherein said heat exchange means includes a first plurality of apertures disposed in said first corrugated sheet and a second plurality of apertures disposed in said second corrugated sheet, and

wherein both said first plurality of apertures and said second plurality of apertures are disposed on said peaks of said first and second corrugated sheets; and

wherein the peaks of the first and second corrugated sheets have a plurality of upwardly protrusive bulges, and wherein said apertures are disposed on lateral walls of the bulges.