F-Shape Rake Edge Metal for Asphalt Shingle Roof Systems

Abstract

A roof system includes a roof deck including a rake edge, an underlayment, a plurality of asphalt shingles, and a one-piece metal apparatus. The one-piece metal apparatus includes a stem, an upper arm, and a lower arm that form an F-shape. The upper arm and lower arm of the one-piece metal apparatus are above the underlayment, and the stem is situated outside and adjacent to the rake edge of the roof deck. The stem, the upper arm, and the lower arm form a three-sided space to accept a thickness of the overlapping rows of the plurality of asphalt shingles. The end of the overlapping rows of the plurality of asphalt shingles are situated within the space formed by the stem, the upper arm, and the lower arm of the one-piece metal apparatus.

What is claimed is: 
     
         1 . A roof system comprising:
 a roof deck,
 wherein the roof deck comprises a rake edge, 
   an underlayment,
 wherein the underlayment is above the roof deck, 
   a plurality of asphalt shingles,
 wherein the plurality of asphalt shingles are above the underlayment, 
 wherein the plurality of asphalt shingles comprise overlapping rows,
 wherein the overlapping rows of the plurality of asphalt shingles have a thickness, and 
 wherein the overlapping rows of the plurality of asphalt shingles have an end at the rake edge of the roof deck, and 
 
   a one-piece metal apparatus,
 wherein the one-piece metal apparatus comprises a stem, an upper arm, and a lower arm,
 wherein the stem, the upper arm, and the lower arm form an F-shape, 
 wherein the stem, the upper arm, and the lower arm are configured to form a three-sided space to accept the thickness of the overlapping rows of the plurality of asphalt shingles, 
 
   wherein the upper arm and the lower arm of the one-piece metal apparatus are above the underlayment,   wherein the stem of the one-piece metal apparatus is situated outside and adjacent to the rake edge of the roof deck, and   wherein the end of the overlapping rows of the plurality of asphalt shingles are situated within the space formed by the stem, the upper arm, and the lower arm of the one-piece metal apparatus.   
     
     
         2 . The roof system of  claim 1 , wherein the one-piece metal apparatus comprises aluminum, aluminum alloy, copper, copper alloy, steel, or steel alloy. 
     
     
         3 . The roof system of  claim 2 , wherein the one-piece metal apparatus comprises an aluminum alloy extrudate. 
     
     
         4 . The roof system of  claim 1 , wherein the upper arm has a length, the lower arm has a length, and the length of the lower arm is greater than the length of the upper arm. 
     
     
         5 . The roof system of  claim 1 , wherein the lower arm has a thickness, and the thickness of the lower arm is configured to allow the lower arm to be mechanically fastened to the roof deck with a standard roofing fastener. 
     
     
         6 . The roof system of  claim 1 , wherein the stem of the one-piece metal apparatus comprises a bottom portion that is angled away from a rake edge of the roof deck. 
     
     
         7 . The roof system of  claim 1 , wherein the rake edge of the roof deck has a length, and wherein the one-piece metal apparatus has a length that is substantially equal to the length of the rake edge. 
     
     
         8 . A roof system comprising:
 a roof deck,
 wherein the roof deck comprises a rake edge,
 wherein the rake edge of the roof deck has a length, 
 
   an underlayment,
 wherein the underlayment is above the roof deck, 
   a plurality of asphalt shingles,
 wherein the plurality of asphalt shingles are above the underlayment, 
 wherein the plurality of asphalt shingles comprise overlapping rows,
 wherein the overlapping rows of the plurality of asphalt shingles have a thickness, and 
 wherein the overlapping rows of the plurality of asphalt shingles have an end at the rake edge of the roof deck, and 
 
   a one-piece metal apparatus,
 wherein the one-piece metal apparatus comprises a stem, an upper arm, and a lower arm,
 wherein the stem, the upper arm, and the lower arm form an F-shape,
 wherein the upper arm has a length, the lower arm has a length, and the length of the lower arm is greater than the length of the upper arm, 
 wherein the lower arm has a thickness, 
  wherein the thickness of the lower arm is configured to allow the lower arm to be mechanically fastened to the roof deck with a standard roofing fastener, 
 
 wherein the stem, the upper arm, and the lower arm are configured to form a three-sided space to accept the thickness of the overlapping rows of the plurality of asphalt shingles, 
 wherein the stem of the one-piece metal apparatus comprises a bottom portion that is angled away from the upper arm and the lower arm and is configured to divert water away from a structure supporting a roof deck, 
 
 wherein the one-piece metal apparatus has a length that is substantially equal to the length of the rake edge, 
 wherein the one-piece metal apparatus comprises an aluminum alloy extrudate, 
   wherein the upper arm and the lower arm of the one-piece metal apparatus are above the underlayment,   wherein the stem of the one-piece metal apparatus is situated outside and adjacent to the rake edge of the roof deck,   wherein the end of the overlapping rows of the plurality of asphalt shingles are situated within the space formed by the stem, the upper arm, and the lower arm of the one-piece metal apparatus, and   wherein the lower arm of the one-piece metal apparatus is fastened to the roof deck with a standard roofing fastener.   
     
     
         9 . An apparatus comprising,
 a one-piece metal apparatus comprising   a stem,   an upper arm, and   a lower arm,
 wherein the stem, the upper arm, and the lower arm form an F-shape, wherein the stem, the upper arm, and the lower arm form a three-sided space that is configured to accept a thickness of overlapping rows of a plurality of asphalt shingles. 
   
     
     
         10 . The apparatus of  claim 9 , wherein the one-piece metal apparatus comprises aluminum, aluminum alloy, copper, copper alloy, steel, or steel alloy. 
     
     
         11 . The apparatus of  claim 10 , wherein the one-piece metal apparatus comprises an aluminum alloy extrudate. 
     
     
         12 . The apparatus of  claim 9 , wherein the upper arm has a length, the lower arm has a length, and the length of the lower arm is greater than the length of the upper arm. 
     
     
         13 . The apparatus of  claim 9 , wherein the lower arm has a thickness, and the thickness of the lower arm is configured to allow the lower arm to be mechanically fastened to the roof deck with a standard roofing fastener. 
     
     
         14 . The apparatus  claim 9 , wherein the stem of the one-piece metal apparatus comprises a bottom portion that is angled away from the upper arm and the lower arm and is configured to divert water away from a structure supporting a roof deck.