Roofing underlayment
a technology for roofing materials and underlayments, applied in the field of roofing materials, can solve the problems of unattractive finished products, human error, and potential for water to penetrate through the roof and into the building, and achieve the effect of minimizing human error and misalignment of roofing materials and cost effectiv
Inactive Publication Date: 2005-03-31
HAAS CHRISTINE +1
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AI Technical Summary
Benefits of technology
"The invention provides a roofing underlayment that helps align and align roofing materials in a cost-effective and efficient way. The underlayment contains a grid that is visually identifiable when placed over a roof substrate, and the grid assists in aligning the underlayment with the roof structure during installation. This reduces the potential for human error and misalignment of roofing materials. The grid can be made of lines that are parallel or perpendicular to the underlayment, and the lines can be coloured to distinguish them from the underlayment. Overall, the invention provides a more precise and reliable method for installing roofing materials."
Problems solved by technology
Misalignment of shingles creates both an unattractive finished product and presents the potential for water to penetrate through the roof and into the building.
While both of these methods may be effective, they are also labour intensive and introduce the potential for error as there is a constant requirement for individuals to take measurements and mark the position for subsequent rows of roofing materials.
Failure to measure or mark accurately can result in an alignment problem.
The alignment of roofing materials can be further complicated by the fact that a liner or underlayment is commonly applied to the roof substrate prior to the application of shingles, shakes, tiles or other roofing materials.
Once applied, the underlayment obscures the roof substrate from view making it even more difficult for a roofer to properly align the overlying roofing materials.
Method used
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[0022] The present invention may be embodied in a number of different forms. However, the specification and drawings that follow describe and disclose only some of the specific forms of the invention and are not intended to limit the scope of the invention as defined in the claims that follow herein.
[0023] The typical structure of a standard pitched roof (as constructed in wood framed buildings) is shown in cross section in FIG. 1. In general such roofs are comprised of a wooden substrate 1 fastened to a series of trusses or rafters 2. A roofing underlayment 3 is commonly laid over substrate 1. Thereafter roofing materials 4 are applied to form the finished roof. In most instances substrate 1 would be comprised of plywood, exterior sheeting, or a series of wooden boards. However, it will be appreciated that the scope and application of the present invention will not be limited to a particular form of substrate. Similarly, while roofing materials 4 may be comprised of asphalt shingl...
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A roofing underlayment for placement over a roof substrate prior to the application of shingles, tiles or other roofing materials. The underlayment comprises a sheeting material having an upper surface and a lower surface. The underlayment contains a grid that is visually identifiable from above the underlayment when the underlayment is received over the roof substrate with its lower surface adjacent to the roof substrate. The grid assists in the alignment of the underlayment with the roofing substrate during application of the underlayment to the substrate and further assists in the alignment of roofing materials applied over the underlayment.
Description
FIELD OF THE INVENTION [0001] This invention relates generally to the field of roofing materials, and in particular to a new and improved roofing underlayment. BACKGROUND OF THE INVENTION [0002] In the construction of a pitched roof, it is highly desirable from both an aesthetic and a functional stand point to ensure that roofing materials are applied in a manner so that they are “square” with the ridge of the roof, and so that they are arranged in a generally parallel or “straight” configuration. For example, where asphalt shingles are to be applied to a roof, alignment of the shingles in equally spaced rows that are generally horizontal and parallel to the ridge of the roof ensures an aesthetically pleasing appearance and allows the shingles to function in the manner in which they were designed; namely, to shed water and prevent leakage. Misalignment of shingles creates both an unattractive finished product and presents the potential for water to penetrate through the roof and int...
Claims
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IPC IPC(8): E04D12/00E04D15/02
CPCE04D15/02E04D12/002
Inventor HAAS, CHRISTINEMORAS, GUY
Owner HAAS CHRISTINE