The present invention involves building sheets with a plurality of grooves indented into a surface of the building sheet to provide a guide for cutting the building sheet along the grooves. Preferably, the grooves are arranged in a regularly repeating pattern and are spaced apart by a standard unit
The present invention involves building sheets with a plurality of grooves indented into a surface of the building sheet to provide a guide for cutting the building sheet along the grooves. Preferably, the grooves are arranged in a regularly repeating pattern and are spaced apart by a standard unit of measurement in order for a cutter to accurately size the building sheet to a precise dimension. A simple scoring knife is preferably used to score the sheet along the grooves, without the need for a straight edge, and the sheet is broken by simply bending the sheet of along the score mark. The grooves are preferably provided at a depth into the surface the sheet such that they do not substantially decrease the strength of the sheet or affect off-groove scoring. Thus, a score mark can be made between or across grooves without deflection of the mark into a groove and without breakage of the sheet along a groove when the sheet is bent.
대표청구항▼
What is claimed is: 1. A building sheet, comprising: a fiber cement board having a front surface and a back surface, said front and back surfaces defining a thickness of said board; and a plurality of guide patterns provided on one of said front surface and said back surface to indicate locations w
What is claimed is: 1. A building sheet, comprising: a fiber cement board having a front surface and a back surface, said front and back surfaces defining a thickness of said board; and a plurality of guide patterns provided on one of said front surface and said back surface to indicate locations where fasteners are to be placed, said guide patterns each having a surface area sized to receive a head of a fastener thereon, wherein said guide pattern is indented into said fiber cement board without piercing through said board. 2. The building sheet of claim 1, wherein said surface area of each guide pattern is generally greater than a surface area of a head of a fastener that extends through said fiber cement board. 3. The building sheet of claim 1, wherein the fiber cement board comprises: between about 20% to about 60% cement; between about 20% to about 70% silica; and less than about 12% cellulose fibers. 4. The building sheet of claim 1, wherein said guide patterns comprise an array of discrete fastener guides arranged in regularly repeating patterns across said board. 5. The building sheet of claim 1, wherein said board is backerboard. 6. The building sheet of claim 1, wherein said board is a panel. 7. The building sheet of claim 1, wherein the guide patterns are circular. 8. The building sheet of claim 7, wherein the guide patterns have a diameter of about 0.25 inches to about 1 inch. 9. The building sheet of claim 1, further comprising a plurality of fasteners extending through said guide patterns on said board. 10. The building sheet of claim 1, where portions of the board forming the plurality of guide patterns are generally flat. 11. The building sheet of claim 1, wherein said front surface and back surface each have flat portions that define a front plane and back plane, respectively, and the entire fiber cement board is confined between the front plane and the back plane. 12. The building sheet of claim 1, wherein the surface areas of the guide patterns each are configured to be penetrated by said fastener. 13. A building sheet, comprising: a fiber cement board having a front surface and a back surface, said front and back surfaces defining a thickness of said board; and a plurality of nailing indicators provided on said front surface, said nailing indicators indicating locations where nails are to be placed, said nailing indicators each being sized and configured to circumscribe a head of a nail thereon, wherein the nailing indicators each have a generally flat surface indented into said fiber cement board without piercing through said board and configured to engage a head of a nail. 14. The building sheet of claim 13, wherein the nailing indicators each are printed indicia on said front surface of said board. 15. The building sheet of claim 13, wherein the nailing indicators each are configured to be penetrated by a nail. 16. A building sheet, comprising: a fiber cement board having a front surface and a back surface, said front and back surfaces defining a thickness of said board; a plurality of nailing indicators provided on said front surface, the nailing indicators indicating locations where nails are to be placed, said nailing indicators indented into said fiber cement board without piercing through said board, each being sized and configured to circumscribe a head of a nail thereon; and a foundation layer attached to said board by a plurality of nails which contact said nailing indicators, said nails extending from said nailing indicators through said board. 17. The building sheet construction of claim 16, wherein a perimeter of each of said nailing indicators surrounds a head of a nail engaged with said nailing indicators. 18. A building sheet, comprising: a fiber cement board having a first surface and a second surface and at least one edge extending along a length of said board; and a fastener area provided on said first surface defining a width extending adjacent said at least one edge along said length of said board, said fastener area being spaced from said at least one edge, said fastening area including at least one nailing indicator being of sufficient size to accommodate a head of a fastener within said nailing indicator, said nailing indicator being indented into said fiber cement board without piercing through said board. 19. The building sheet of claim 18, wherein said at least one nail indicator has a width less than about 1 inch. 20. The building sheet construction of claim 18, wherein said at least one nail indicator has a rectangular shape. 21. The building sheet construction of claim 18, wherein said at least one nail indicator has a width in the range of about 0.25 inches to about 0.45 inches. 22. The building sheet construction of claim 18, wherein said at least one nail indicator has a width less than about 0.45 inches. 23. The building sheet construction of claim 18, wherein said fastener area has a first side and a second side that are generally parallel to one another. 24. The building sheet construction of claim 18, wherein said fastener area extends along substantially the entire said length of said board. 25. The building sheet of claim 18, wherein the fastener area is visually distinctive from other portions of the first surface.
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