Weatherproof Roofing membrane and method for constructing the same
First Claim
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1. A membrane for weatherproofing a roof, comprising:
- a plurality of layers of extensible reinforcing fabric overlying and covering the roof;
a multiplicity of spaced apart fasteners securing at least the bottom layer, but not the top layer, of said layers of fabric to the roof;
each of said layers of fabric being coated with an elastomeric polymer so as to fill the voids of each of said layers of fabric and to bond each of said layers of fabric together, but not to the roof, for providing a spot anchored, flexible, weatherproof membrane.
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Abstract
A weatherproof roofing membrane, and method for constructing the same, comprises a plurality of layers of extensible reinforcing fabric bonded together with an elastomeric polymer, at least the bottom layer, but not the top layer, of the layers of fabric being spot anchored to the roof to form a continuous weatherproof membrane that is durable, light weight, flexible and fire retardant, and has a high degree of solar reflectivity.
84 Citations
16 Claims
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1. A membrane for weatherproofing a roof, comprising:
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a plurality of layers of extensible reinforcing fabric overlying and covering the roof; a multiplicity of spaced apart fasteners securing at least the bottom layer, but not the top layer, of said layers of fabric to the roof; each of said layers of fabric being coated with an elastomeric polymer so as to fill the voids of each of said layers of fabric and to bond each of said layers of fabric together, but not to the roof, for providing a spot anchored, flexible, weatherproof membrane. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A member for weatherproofing a roof having parapets, comprising:
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a slip sheet overlying and covering the roof and lower portion of the parapets; a plurality of layers of extensible reinforcing fabric overlying and covering said slip sheet and the upper portion of the parapets; a multiplicity of spaced apart fasteners securing at least the bottom layer, but not the top layer, of said layers of fabric to the roof; each of said layers of fabric being coated with an elastomeric polymer so as to fill the voids of each of said layers of fabric and to bond each of said layers of fabric together, and to bond said layers of fabric to the upper portion of the parapets, but not to the roof, for providing a spot anchored, flexible, weatherproof membrane that is continuously sealed to the upper portion of the parapets.
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10. A membrane for weatherproofing a roof, comprising:
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a plurality of adjacent slip sheets overlying and covering the roof, each of said slip sheets overlapping adjacent sheets, each lap being sealed with elastomeric polymer, to form a continuous slip sheet layer covering the roof; a plurality of adjacent first sheets of extensible reinforcing fabric overlying and covering said, slip sheet layer each of said first sheets of fabric overlapping adjacent sheets, each lap of fabric being sealed with elastomeric polymer, each lap of fabric directly overlying each slip sheet lap, to form a continuous first layer of fabric covering the roof; a plurality of rows spaced apart fasteners, said fasteners securing said first layer of fabric and said slip sheet layer to the roof, said rows of fasteners including one row along each lap of said first layer of fabric and at least one row between said laps, each row of fasteners being staggered in relation to adjacent rows so as to provide a triangular hold-down pattern; a first coat of elastomeric polymer applied to and completely filling the voids in said first layer of fabric; a plurality of adjacent second sheets of extensible reinforcing fabric overlying and covering said first coated layer of fabric, each sheet of said second sheets of fabric overlapping adjacent sheets to form a continuous second layer of fabric covering the roof, each of the laps in said second layer of fabric being staggered in relation to the laps in said first layer of fabric; and a second coat of elastomeric polymer applied to and completely filling the voids in said second layer of fabric, said first and second coats of elastomeric polymer bonding said first and second layers of fabric together to form a continuous weatherproof membrane. - View Dependent Claims (11, 12)
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13. A method of constructing a weatherproof membrane for a roof, comprising:
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laying out a plurality of adjacent slip sheets to overlie and cover the roof; overlapping adjacent slip sheets; sealing each lap of said slip sheets with an elastomeric polymer to form a continuous slip sheet layer covering the roof; laying out a plurality of first sheets of extensible reinforcing fabric to overlie and cover said slip sheet layer; overlapping adjacent sheets of said first sheets of fabric; sealing with lap of said first sheets of fabric with an elastomeric polymer to form a continuous first layer of fabric covering the roof; inserting a plurality of fasteners through said first sheets of fabric and said slip sheets into the roof; coating said first layer of fabric with a first coat of elastomeric polymer so as to completely fill the voids in said first layer of fabric; laying out a plurality of second sheets of extensible reinforcing fabric to overlie and cover said first coat of polymer; overlapping adjacent sheets of said second sheets of fabric to form a continuous second layer of fabric over the roof; and coating said second layer of fabric with a second coat of elastomeric polymer to completely fill the voids in said second layer of fabric and to bond said first and second layers of fabric together.
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14. A method of constructing a weatherproof membrane for a roof, comprising:
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laying out a plurality of adjacent slip sheets to overlie and cover the roof; overlapping adjacent slip sheets; sealing each lap of said slip sheets with an elastomeric polymer to form a continuous slip sheet layer covering the roof; laying out a plurality of first sheets of extensible reinforcing fabric to overlie and cover said slip sheets layer. overlapping adjacent sheets of said first sheets of fabric so that each lap of fabric directly overlies one of said laps of said slip sheets; sealing each lap of said first sheets of fabric with an elastomeric polymer to form a continuous first layer of fabric covering the roof; inserting a plurality of rows of spaced apart fasteners through said first sheets of fabric and said slip sheets into the roof, one row of fasteners extending along each lap of said first sheets of fabric and at least one row extending between the lap rows, with the fasteners in each row staggered in relation to adjacent rows; starve coating said first layer of fabric with an elastomeric polymer so as to starve-fill the voids in said first layer of fabric, whereafter said starve coating is allowed to dry; recoating said first layer of fabric with a first full coat of elastomeric polymer, so as to completely fill the voids in said first layer of fabric; laying out of plurality of second sheets of extensible reinforcing fabric to overlie and cover said first full coat of elastomeric polymer, while said first full coat is still wet; overlapping adjacent sheets of said second sheets of fabric, each of centered over the laps of said first sheets of fabric so the laps in said second sheets of fabric being staggered in relation to the laps in said first sheets of fabric; pushing said second sheets of fabric into the wet first full coat of elastomeric polymer to form a continuous second layer of fabric covering the roof, whereafter said first full coat of elastomeric polymer is allowed to dry; coating said second layer of fabric with a second full coat of elastomeric polymer so as to completely fill the voids in said second layer of fabric, whereafter said second full coat of elastomeric polymer is allowed to dry; and recoating said second layer of fabric with a fabric coat of elastomeric polymer. - View Dependent Claims (15, 16)
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Specification