Static structures (e.g. – buildings) – Exterior-type flashing
Reexamination Certificate
2001-02-20
2003-01-07
Friedman, Carl D. (Department: 3635)
Static structures (e.g., buildings)
Exterior-type flashing
C052S408000, C052S746110, C428S152000
Reexamination Certificate
active
06502353
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a building having a roof with structured roof tiles and a structure projecting out from the roof surface, such as a chimney, a window, a wall, or ventilating pipe and to a method of constructing a roof of a building covered with structured roofing tiles and a structure projecting out from the roof surface, such as a chimney, a window, a wall, or ventilating pipe and also the gap between a ridge, an arris or hip covering.
2. Background Information
Methods are known for constructing a roof of a building covered with structured roofing tiles and a structure projecting out from the roof surface, such as a chimney, a window, a wall, or ventilating pipe and also the gap between a ridge, an arris or hip covering which covers the surface of the roof of a building covered with structured roofing tiles and a structure projecting out from the roof surface, such as a chimney, a window, a wall, or ventilating pipe, and also the gap between a ridge, an arris or hip, etc. In these cases the surface of the roof of a building covered with structured roofing tiles and a structure projecting out from the roof surface, such as a chimney, a window, a wall, or ventilating pipe, and also the gap between a ridge, an arris or hip, etc., the area between an essentially planar surface or straight edge and a three-dimensional structured surface must be covered whereby the three-dimensional, structured surface is larger than its projection into the plane. The covering must therefore be extendable in at least that region abutting the three-dimensional, structured surface.
Upon constructing a roof of a building covered with structured roofing tiles and a structure projecting out from the roof surface, such as a chimney, a window, a wall, or ventilating pipe and also the gap between a ridge, an arris or hip covering, such covering material in the form of sheets, strips or widths is required as covering on the roof of a building, for example, to seal the gap between the surface of the roof covered with structured roofing tiles and a structure projecting out from the roof surface, such as a chimney, a window, a wall, or ventilating pipe, or also the gap between a ridge, an arris or hip, etc. In these cases, the gap between an essentially planar surface or straight edge and a three-dimensional structured surface must be covered so as to be water-tight, whereby the three-dimensional, structured surface is larger than its projection into the plane. The covering must therefore be extendable in at least that region abutting the three-dimensional, structured surface.
U.S. Pat. No. 5,377,459 discloses a ridge cover also useable as a shingle having a three dimensional appearance much like shake, together with methods of making and using the same. In one embodiment, right isosceles triangular pieces of asphalt composition roofing material are cut. Thereafter, the material on each side of the center line bisecting the right angle is folded under the top surface of the asphalt composition material a plurality of times in a Z-fold manner along lines approximately parallel to the center line to effectively progressively thicken the material at the respective side of the center line, the folding pattern for the two sides being symmetrical with each other. In manufacture, the triangle shaped pieces may be cut from a roll of material with no waste, may be progressively folded, stacked for shipment in a substantially solid stack, easily bent over a ridge during installation, and nailed into position utilizing hidden nails to obtain double coverage on hip and ridges in a manner simulating the outline of a heavy wood shape hip and ridge cover. The symmetry of the cover makes the same also useful as a shingle for a pronounced three dimensional hidden nail double coverage installation.
U.S. Pat. No. 5,440,855 discloses roofing components and method for pitched roofs includes a flexible base and one or more ranks of integrally formed thin blades, vanes or fins extending outwardly from the base. The blades, fins or vanes are spaced substantially parallel to each other and overlap to shadow lower elements and to provide air circulation and between blades, which are designed to sluff-off heat and impede thermal energy being transmitted to the roof. The blades, fins or vanes are flexible and resilient so as to absorb the impact of falling material (limbs, etc.). One edge portion of the base is free of blades to provide an overlapped area for installation on a pitched roof. Various overlapping and interlocking arrangements are disclosed for sealing purposes.
U.S. Pat. No. 5,426,898 discloses a lead-free plate-shaped roof flashing material comprises a sandwich structure in which a stress damping and stabilizing layer of ductile material is completely covered on one side and at least partly covered on the other side by preferably metallic foil sheetings, e.g. of aluminum foil, designed with densely positioned flattened folded sections having such a form, e.g. closed inverted pleats, that a material layer of each folded section gets into contact with the stress damping and stabilizing layer only when the folded sections open in connection with deforming the flashing material to make it fit to the roofing.
DE-A 36 42 063 discloses a covering material having a rib mesh embedded in polyisobutylene as a substrate. When this covering material is extended, the diamond meshes of the substrate deform, whereby the height and aperture of a mesh change in inverse proportion to one another while the lateral lengths remain the same. At the same time, the area of a mesh changes so that the embedding compound is severely deformed and, due to its elastic properties, exerts a restoring force on the rib mesh. This known covering material therefore exhibits undesirable creep, in particular following severe extension.
OBJECT OF THE INVENTION
The object of the present invention is to create an economical covering material for covering the gap between a planar surface and a structured surface, in particular a highly structured roof surface, which material can be extended in at least one direction more than 30%, can be bent perpendicular to the direction of extension, and the entire surface of which covering material can be permanently deformed in three dimensions.
SUMMARY OF THE INVENTION
To achieve this object, the present invention teaches that the thin flat stock is, at least in the direction opposite the direction of extension, compressed, crepe-like, by at least 25% of its original length so that the surface of the covering material exhibits irregular little corrugations.
As a result of the compression opposite the direction of extension, the covering material can easily be extended in the direction of extension to its original length. The covering material is compressed, crepe-like, by at least that length by which it is to later be extended or extendable. The covering material is preferably compressed by approximately 30-50% of its original length, so that when extended to its original length, it is about 1.5 to 2 times its as-delivered length. The covering material can therefore easily be extended up to 100% of its length, i.e. by a significantly greater amount than can known covering materials. The covering material can be compressed both vertically and horizontally, so that it can be extended in any direction.
One aspect of the invention relates to a building having a roof, the building comprising walls and a roof which is supported by the walls, the roof having sculptured roofing tiles, which form a three dimensional structured surface disposed on the roof, a structure projecting out of a roof, such as a chimney, a window, a wall, or ventilating pipe, a gap between the roof and the structure projecting out from the roofing surface, a rib mesh, having openings and a covering, that covers the openings on at least one side of the rib mesh, being disposed over a gap between the surface of the roof covered with structured roofing tiles and the structure projecting out
Friedman Carl D.
Lafarge Braas Roofing Accessories GmbH & Co. KG
Nils H. Ljungman & Associates
Slack Naoko
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