US 4,068,437 AGranted

Panel roof construction with improved joints

AssigneeW. H. Porter, Inc.

InventorsMorley Ben Byxbe, Richard Allan Meckley, William Hunt Porter

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Abstract

A roof structure for a building includes a number of panels, preferably of a sandwich construction with a rigid foam core and upper and lower surfaces which may be metal, wood or other material depending upon the use. A first type of joint extends along the fall line of the roof, with the panels being in side-by-side, spaced relation and supported along their ridges by a roof truss extending along this longitudinal joint. A retainer strip extends along the longitudinal joint and is held in sealing relation with the adjacent panels by means of threaded fasteners secured to the truss. A joint transverse of the fall line is formed by a tongue-in-groove construction of the panels which permits an upper panel to lap over a lower panel for better drainage, and also allows for thermal expansion and contraction.

Claims15

Dependent claims

In a panel roof construction wherein each panel of said roof includes a sandwich type construction having a center insulating core, an outer skin and an under skin, said panels being supported on roof trusses to define longitudinal joints and transverse joints, the improvement comprising:

said roof trusses defining an elongated slot extending along said longitudinal joints, the longitudinal edges of said panels being flush, each longitudinal joint including a cover strip extending therealong and having a general T-shape including an upper web straddling the adjacent edges of two panels and a stiffening member adapted to extend into the space between adjacent panels, the lower surface of said web defining a rib adjacent each edge thereof for spacing said web from said roof panels, first and second sealing strips for sealing the sides of said web respectively to adjacent panels, and threaded fastener means for securing said cover strip by threading into said slot of said roof truss at locations spaced along said longitudinal joint;
and said transverse joints including a groove at the lower edge of each panel formed by extending the outer and under skins thereof to form upper and lower laps, a strip of flexible sealing material secured to the under surface of said upper lap, the upper edge of lower panels being sized to be received into the groove of an upper panel, said flexible sealing strip acting as a seal in itself and spacing the lap of an upper panel above the outer surface of a lower panel or break the capillary therebetween.

Dependencies are inferred from the claim text.