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| Air vent deflector insert |
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| Discharge for downspouts |
| OF THE DRAWINGS FIG. 1 is a side view of a typical downspout configuration affixed to the side of ... |
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| Sealing strip for a roof ridge or arris cover |
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| Sealing strip for bridging an expansion joint |
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| Food storage building floor and method of constructing the same |
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| Roof or wall covering and mounting member for a gutter bracket |
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System for resurfacing a roof with a cantilever edge
| Details |
Inventors: Tawzer, Charles;
Assignee: A-1 All Weather Roofing, Inc. (Hillsboro, OR)
Primary Examiner: Boucher; Darnell M.
Assistant Examiner:
Attorney, Agent or Firm: Chernoff, Vilhauer, McClung & Stenzel
A system and articles of manufacture for resurfacing a roof having a roof surface with a cantilever portion that extends outward from a roof base. The system comprises an edge strip that covers the cantilever portion and a water impervious sheet that covers the noncantilever portion of the roof. The edge strip and sheet are selected from materials that are heat-weldable to one another, preferably both are made of, or clad with, polyvinyl chloride. The edge strip also has a drip edge that prevents water that runs off the resurfaced roof from running down a wall that supports the roof. |
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DETAILED DESCRIPTION This invention relates to a system for resurfacing a roof with a heat sealable membrane when the existing roofing material cantilevers from the edge of the roof.
More particularly, this invention relates to an edge strip for use in such a system that covers the cantilever portion of the existing roofing material.
To improve the appearance of homes having shallow pitch roofs, such as manufactured homes, mobil homes, and modular homes, some manufacturers have installed an asphalt shingle style of roof similar to that found on many custom homes.
These roofs comprise a roof base, and the roofing material has a portion which cantilevers outward over an edge of the roof base.
However, experience is demonstrating that asphalt shingle roofs are undesirable on shallow pitch roofs because wind-driven water can work its way underneath the shingles and cause the roof to leak.
In order to correct the problem of leaking associated with shallow pitch asphalt shingle roofs, many homeowners desire to resurface the roof to make it watertight.
In addition, even on custom built sturdy frame structures, asphalt shingle roofs can only be resurfaced a limited number of times since the weight of multiple layers of roofing material will eventually exceed the loading capability of a structure.
When this occurs it is necessary to remove all the existing layers of roofing material and start over.
Removing the existing roofing significantly increases the cost of the reroofing job.
Both of these problems with asphalt shingle roofs can be overcome by resurfacing over the existing roofing material with a suitable light-weight, water-impervious material such as polyvinyl chloride (PVC).
This roofing material is heat sealable to itself and is installed in elongated overlapping sheets which are sealed to one another.
To weatherproof the edges of the roof, the sheets extend beyond the edges of the roof and are attached to a vertical face of the roof base.
However, if the existing roofing material extends beyond the edge of the roof base it will create a ragged edge and damage the thin PVC membrane
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