Roofing system

Claim 2

In a roofing system for sloping roofs, a plurality of rows of tiles formed of a molded resinous plastic material, said tiles having flat outer surfaces and tapered roof-engaging portions so that the forward end of each outer surface is pitched outwardly from the roof, first and second downwardly extending lips at the forward end of each tile, the second lip being spaced rearwardly from the first lip, first and second upwardly extending lips at the rearward end of each tile, the second upwardly extending lip being spaced forwardly from and shorter than the first rearward lip, the first forward lip of each tile interfitting between said two rearward lips, the first upwardly extending lip of each tile interfitting between the two forward lips to form a seal, a fastener passing through said first forward and first rearward lips of interfitting tiles in a direction substantially parallel to said flat outer surfaces to secure the tiles together, said resinous plastic material clinging to said fastener to form a watertight seal, and a second fastener substantially at right angles to said first fastener and passing through said firstmentioned rearward lip and into the roof to secure the rearward end of each tile to the roof.

Claim 3

In a roofing system for sloping roofs, a plurality of tiles formed of a molded resinous plastic material, said tiles having flat outer surfaces and tapered roof-engaging portions so that the forward end of each outer surface is pitched outwardly from the roof, first and second downwardly extending lips at the forward end of each tile, the second lip being spaced rearwardly from the first lip, first and second upwardly extending lips at the rearward end of each tile, the second upwardly extending lip being spaced forwardly from and shorter than said first rearward lip, the first forward lip of each tile interfitting between said two rearward lips of an adjacent tile, the first rearward lip of each tile interfitting between the two forward lips of an adjacent tile to form a seal, a fastener passing into the forward end of the first fOrward lip and the first rearward lip of interfitting tiles to secure the tiles together, said resinous plastic material clinging to said fastener to form a watertight seal, some of said tiles being located intermediate a row and other tiles terminating a row, one side edge of each of said intermediate tiles having a downwardly facing groove and the other side edge an upwardly facing groove, the side edges of intermediate tiles overlapping to form a seal, both side edges of each row terminating tile having upwardly facing grooves, and a filler piece between each row terminating tile and the adjacent intermediate tile in the same row, each filler piece being fabricated by cutting off both side edges of an intermediate tile so that flat portions of the filler piece overlap the upwardly facing grooves of the row terminating tile and the adjacent intermediate tile.

Claim 4

In a roofing system for sloping roofs, a plurality of tiles formed of a molded resinous plastic material, said tiles having flat outer surfaces and tapered roof-engaging portions so that the forward end of each outer surface is pitched outwardly from the roof, first and second downwardly extending lips at the forward end of each tile, the second lip being spaced rearwardly from the first lip, first and second upwardly extending lips at the rearward end of each tile, the second upwardly extending lip being spaced forwardly from and shorter than said first rearward lip, the first forward lip of each tile interfitting between said two rearward lips of an adjacent tile, the first rearward lip of each tile interfitting between the two forward lips of an adjacent tile to form a seal, a fastener passing into the forward end of the first fOrward lip and the first rearward lip of interfitting tiles to secure the tiles together, said resinous plastic material clinging to said fastener to form a watertight seal, some of said tiles being located intermediate a row and other tiles terminating a row, one side edge of each of said intermediate tiles having a downwardly facing groove and the other side edge an upwardly facing groove, the side edges of intermediate tiles overlapping to form a seal, both side edges of each row terminating tile having upwardly facing grooves, and a filler piece between each row terminating tile and the adjacent intermediate tile in the same row, each filler piece being fabricated by cutting off both side edges of an intermediate tile so that flat portions of the filler piece overlap the upwardly facing grooves of the row terminating tile and the adjacent intermediate tile.

Claim 5

In a roofing system for sloping roofs, a plurality of rows of tiles formed of a molded resinous plastic material, said tiles having flat outer surfaces and tapered roof-engaging portions so that the forward end of each outer surface is pitched outwardly from the roof, a downwardly extending lip at said forward end of each tile, an upwardly extending lip at the rearward end of each tile fitting behind the forward lip of an adjacent tile to form a seal, a fastener passing into the forward end of said adjacent tile and said rearward lip to secure the tiles together, said resinous plastic material clinging to said fastener to form a watertight seal, some of said tiles being located intermediate a row and other tiles terminating a row, one side edge of each of said intermediate tiles having a downwardly facing groove and the other side edge an upwardly facing groove, the side edges of intermediate tiles overlapping to form a seal, both side edges of each row terminating tile having upwardly facing grooves, and a filler piece between each row terminating tile and the adjacent intermediate tile in the same row, each filler piece being fabricated by cutting off both side edges of an intermediate tile so that flat portions of the filler piece overlap the upwardly facing grooves of the row terminating tile and the adjacent intermediate tile.

Claim 6

In a roofing system for sloping roofs, a plurality of rows of tiles formed of a molded resinous plastic material, said tiles having flat outer surfaces and tapered roof-engaging portions so that the forward end of each outer surface is pitched outwardly from the roof, a downwardly extending lip at said forward end of each tile, an upwardly extending lip at the rearward end of each tile fitting behind the forward lip of an adjacent tile to form a seal, a fastener passing into the forward end of said adjacent tile and said rearward lip to secure the tiles together, said resinous plastic material clinging to said fastener to form a watertight seal, some of said tiles being located intermediate a row and other tiles terminating a row, one side edge of each of said intermediate tiles having a downwardly facing groove and the other side edge an upwardly facing groove, the side edges of intermediate tiles overlapping to form a seal, both side edges of each row terminating tile having upwardly facing grooves, and a filler piece between each row terminating tile and the adjacent intermediate tile in the same row, each filler piece being fabricated by cutting off both side edges of an intermediate tile so that flat portions of the filler piece overlap the upwardly facing grooves of the row terminating tile and the adjacent intermediate tile.

Claim 7

A roofing system according to claim 3, the forward end of each tile having a second downwardly extending lip spaced rearwardly from and longer than said forward lip to act as a foot for said tile, the rearward end of each tile having a second upwardly extending lip spaced forwardly from and shorter than said first rearward lip, the first forward lip interfitting between the two rearward lips of each adjacent tile and the first rearward lip interfitting between the two forward lips of each adjacent tile to form a double seal.

Claim 8

In a roofing system for sloping roofs, a plurality of rows of tiles formed of a molded resinous plastic material, said tiles having flat outer surfaces and tapered roof-engaging portions so that the forward end of each outer surface is pitched outwardly from the roof, a downwardly extending lip at said forward end of each tile, an upwardly extending lip at the rearward end of each tile fitting behind the forward lip of an adjacent tile to form a seal, a fastener passing into the forward end of said adjacent tile and said rearward lip to secure the tiles together, said resinous plastic material clinging to said fastener to form a watertight seal, a rearward edge of each tile further having an extension overlying the roof and securable thereto by fasteners passing therethrough, and a second upwardly extending lip on said rearward edge spaced forwardly from and shorter than the first upwardly extending lip, the downwardly extending lip at the forward end of the adjacent tile interfitting between said two upwardly extending lips to form a seal.

Claim 9

In a roofing system for sloping roofs, a plurality of rows of tiles formed of a molded resinous plastic material, said tiles having flat outer surfaces and tapered roof-engaging portions so that the forward end of each outer surface is pitched outwardly from the roof, a downwardly extending lip at said forward end of each tile, an upwardly extending lip at the rearward end of each tile fitting behind the forward lip of an adjacent tile to form a seal, a fastener passing into the forward end of said adjacent tile and said rearward lip to secure the tiles together, said resinous plastic material clinging to said fastener to form a watertight seal, a rearward edge of each tile further having an extension overlying the roof and securable thereto by fasteners passing therethrough, and a second upwardly extending lip on said rearward edge spaced forwardly from and shorter than the first upwardly extending lip, the downwardly extending lip at the forward end of the adjacent tile interfitting between said two upwardly extending lips to form a seal.

Claim 10

In a roofing system, a plurality of rectangular intermediate tiles of identical size and shape, the main portion of each tile being substantially flat, each intermediate tile having front and rear edges of comPlementary cross-sectional shape so that the front and rear edges of adjacent tiles interfit to form a seal, one side edge of each tile having a downwardly open groove and the other side a complementary upwardly open groove, whereby adjacent side-by-side tiles interfit to form a seal, identical row terminating tiles having a special shape to conform to an end of one portion of the roof, each row terminating tile having front and rear edges with cross-sectional shapes similar to said intermediate tiles, at least one side edge of each row terminating tile having an upwardly open recess, and a filler piece extending between said last-mentioned side edge of each row terminating tile and the next adjacent complete intermediate tile, said filler piece being formed by cutting off both side edges of an intermediate tile so that the sides of the remaining flat portion overlap the upwardly open grooves of said row terminating tile and the adjacent intermediate tile.

Claim 11

In a roofing system, a plurality of rectangular intermediate tiles of identical size and shape, the main portion of each tile being substantially flat, each intermediate tile having front and rear edges of comPlementary cross-sectional shape so that the front and rear edges of adjacent tiles interfit to form a seal, one side edge of each tile having a downwardly open groove and the other side a complementary upwardly open groove, whereby adjacent side-by-side tiles interfit to form a seal, identical row terminating tiles having a special shape to conform to an end of one portion of the roof, each row terminating tile having front and rear edges with cross-sectional shapes similar to said intermediate tiles, at least one side edge of each row terminating tile having an upwardly open recess, and a filler piece extending between said last-mentioned side edge of each row terminating tile and the next adjacent complete intermediate tile, said filler piece being formed by cutting off both side edges of an intermediate tile so that the sides of the remaining flat portion overlap the upwardly open grooves of said row terminating tile and the adjacent intermediate tile.

Claim 12

In a sealing construction for overlapping relatively rigid tiles of a roofing system formed of rows of tiles which are formed of a molded resinous plastic material, a downwardly extending lip at the forward end of one tile, a first upwardly extending lip on another tile, a shorter upwardly extending lip on said other tile spaced forwardly from said first lip, the inner portion of said first upwardly extending lip being reduced in cross section to give it flexibility, a recess in the forward portion of said first tile for receiving said first upwardly extending lip, and a hooked outer end on said downwardly extending lip engageable under said second upwardly extending lip whereby the tiles may be connected and sealed together by swinging the first tile downwardly into place.

Claim 13

In a sealing construction for overlapping relatively rigid tiles of a roofing system formed of rows of tiles which are formed of a molded resinous plastic material, a downwardly extending lip at the forward end of one tile, a first upwardly extending lip on another tile, a shorter upwardly extending lip on said other tile spaced forwardly from said first lip, the inner portion of said first upwardly extending lip being reduced in cross section to give it flexibility, a recess in the forward portion of said first tile for receiving said first upwardly extending lip, and a hooked outer end on said downwardly extending lip engageable under said second upwardly extending lip whereby the tiles may be connected and sealed together by swinging the first tile downwardly into place.

Claim 14

A roofing system according to claim 7, the rear edge of said second tile having a rearward extension overlying the roof and securable thereto by a fastener extending therethrough.

Claim 15

In a roofing system for sheathed sloping roofs, a plurality of rows of tiles formed of a molded resinous plastic material, said tiles having flat outer surfaces and laterally spaced downwardly extneding tapered roof-engaging portions engageable along their bottom edges with the roof sheathing so that the forward end of each outer surface is pitched outwardly from the roof, downwardly extending means at said forward end of each tile, upwardly extending means at the rearward end of each tile, one of said means comprising a pair of spaced parallel lips defining a groove therebetween and the other of said means comprising a lip fitted in the grooves of adjacent tiles, means holding said last named lips in their said grooves and fastener means extending through the rear ends of said tiles into the sheathing in locations rearwardly of the forwardmost one of said lips.

Claim 16

In a roofing system for sheathed sloping roofs, a plurality of rows of tiles formed of a molded resinous plastic material, said tiles having flat outer surfaces and laterally spaced downwardly extneding tapered roof-engaging portions engageable along their bottom edges with the roof sheathing so that the forward end of each outer surface is pitched outwardly from the roof, downwardly extending means at said forward end of each tile, upwardly extending means at the rearward end of each tile, one of said means comprising a pair of spaced parallel lips defining a groove therebetween and the other of said means comprising a lip fitted in the grooves of adjacent tiles, means holding said last named lips in their said grooves and fastener means extending through the rear ends of said tiles into the sheathing in locations rearwardly of the forwardmost one of said lips.

Claim 17

A roofing system according to claim 9 in which said one means is disposed at the rearward end of each tile and said other means is disposed at the forward end of each tile.

Claim 18

A roofing system according to claim 10 in which the forwardmost lip of said pair of lips is shorter than the rearward most lip of said pair of lips.

Claim 19

A roofing system according to claim 9 in which said holding means comprises a nail driven into at least one of said lips.

Claim 20

A roofing system according to claim 9 in which said holding means comprises a nail driven through at least two of said lips.

Claim 21

A roofing system according to claim 9 in which the tiles of each row are staggered with respect to the tiles of the adjacent rows.

Claim 22

A roofing system according to claim 9 including a sealant disposed in the grooves of said tiles between the bottom of the grooves and the lips received therein.