Moisture removing system and method for structural roofs

Abstract

An improved system for removing moisture from a roof envelope made from low permeability membrane sheets that includes: a plurality of elongate membrane sheets positioned and attached, in adjacent rows, over a central region of the roof, to form central channels, with each channel having at least one one-way roof vent positioned near one end of that channel, and a perimeter attachment means. The perimeter attachment means is selected from: (a) a plurality of elongate membrane sheets that are position and attached to form at least one perimeter channel at each perimeter side of the roof; (b) at least on perimeter channel positioned and fastened along the perimeter sides of the roof parallel to the central region channels and fasteners bisecting the central field channels along all other perimeter sides of the roof; (c) fasteners or other attachment means bisecting the central region channels parallel to perimeter sides parallel to said central region channels and fasteners or other attachment means bisecting the central region channels perpendicular to the remaining perimeter sides of the roof; and (d) a fully adhered perimeter.

1 . A system for removing moisture from within a roof envelope made from membrane sheets with low permeability, said system comprising: (a) a plurality of elongate membrane sheets positioned and fastened, in adjacent rows, over a central region of a roof to form a plurality of central region channel, each said central region channel having at least one one-way roof vents positioned near an end of said roof channel, and (b) a perimeter attachment means. 
     
     
         2 . The moisture removing roof system of  claim 1 , wherein said perimeter attachment means is selected from group consisting of (a) a plurality of elongate membrane sheets positioned and fastened to form at least one perimeter channel along each perimeter side of the roof; (b) at least one said perimeter channels positioned and attached at the perimeter sides of the roof parallel to said central region channels and fasteners or other attachment means bisecting said central field channels at the remaining perimeter sides of the roof; (c) fasteners or other attachment means bisecting the central region channels parallel to perimeter sides parallel to said central region channels and fasteners or other attachment means bisecting the central region channels perpendicular to the remaining perimeter sides of the roof; and (d) a fully adhered perimeter. 
     
     
         3 . The moisture removing roof system of  claim 2 , wherein each perimeter roof channel has at least one one-way roof vent positioned near an end of said perimeter roof channel. 
     
     
         4 . The moisture removing roof system of  claims 1  or  2 , wherein said central region and perimeter channels are made from thermoset or thermoplastic materials. 
     
     
         5 . The moisture removing roof system of  claim 1 , wherein adjacent central region channels have said one-way roof vents positioned at opposite ends of said adjacent channels. 
     
     
         6 . The moisture removing roof system of  claim 2 , wherein each perimeter channel has a one-way roof vent at or near each channel end so that said vents are positioned in said perimeter channels at roof corners. 
     
     
         7 . The moisture removing roof system of  claims 1  or  2 , wherein any individual central region channel that has a roof occlusion at least partially penetrating into said channel has at least one one-way roof vent positioned on each side of said roof occlusion. 
     
     
         8 . A roof system with ventilation for removing moisture trapped within the roof envelope of said roof system comprising: (a) a plurality of elongate membrane sheets positioned and fastened, in adjacent rows, over a central region of a roof to form a plurality of central region channel, each said central region channel having at least one one-way roof vents positioned near an end of said roof channel so that any moisture trapped in each said central region channel may escape through said at least one roof vent, and (b) a perimeter attachment means. 
     
     
         9 . The moisture removing roof system of  claim 8 , wherein said perimeter attachment means is selected from group consisting of (a) a plurality of elongate membrane sheets positioned and fastened to form at least one perimeter channel along each perimeter side of the roof; (b) at least one said perimeter channels positioned and attached at the perimeter sides of the roof parallel to said central region channels and fasteners or other attachment means bisecting said central field channels at the remaining perimeter sides of the roof; (c) fasteners or other attachment means bisecting the central region channels parallel to perimeter sides parallel to said central region channels and fasteners or other attachment means bisecting the central region channels perpendicular to the remaining perimeter sides of the roof; and (d) a fully adhered perimeter. 
     
     
         10 . The moisture removing roof system of  claim 9 , wherein each perimeter roof channel has at least one one-way roof vent positioned near an end of said perimeter roof channel. 
     
     
         11 . The moisture removing roof system of  claims 8  or  9 , wherein said central region and perimeter channels are made from thermoset or thermoplastic materials. 
     
     
         12 . The moisture removing roof system of  claim 8 , wherein adjacent central region channels have said one-way roof vents positioned at opposite ends of said adjacent channels. 
     
     
         13 . The moisture removing roof system of  claim 9 , wherein each perimeter channel has a one-way roof vent at or near each channel end so that said vents are positioned in said perimeter channels at roof corners. 
     
     
         14 . The moisture removing roof system of  claims 8  or  9 , wherein any individual central region channel that has a roof occlusion at least partially penetrating into said channel has at least one one-way roof vent positioned on each side of said roof occlusion. 
     
     
         15 . A method for rendering a structural roof system more moisture resistant, said method comprising the steps of: (a) positioning and fastening a plurality of elongate membrane sheets in adjacent rows, over a central region of a roof to form a plurality of central region channel, each said central region channel having at least one one-way roof vents positioned near an end of said roof channel so that any moisture trapped in each said central region channel may escape through said at least one roof vent; and (b) securing said central regions channels to said roof with a perimeter attachment means. 
     
     
         16 . The method of  claim 15 , wherein said perimeter attachment means is selected from group consisting of: (a) a plurality of elongate membrane sheets positioned and fastened to form at least one perimeter channel along each perimeter side of the roof; (b) at least one said perimeter channels positioned and attached at the perimeter sides of the roof parallel to said central region channels and fasteners or other attachment means bisecting said central field channels at the remaining perimeter sides of the roof; (c) fasteners or other attachment means bisecting the central region channels parallel to perimeter sides parallel to said central region channels and fasteners or other attachment means bisecting the central region channels perpendicular to the remaining perimeter sides of the roof; and (d) a fully adhered perimeter. 
     
     
         17 . The method of  claim 16 , wherein each perimeter channel has at least one one-way roof vent positioned near an end of said perimeter roof channel for moisture to escape through said roof vent. 
     
     
         18 . The method of  claim 15  which further comprises: (d) positioning a one-way roof vent at or near an end of each perimeter channel over a corner of the roof. 
     
     
         19 . The method of  claim 14 , wherein adjacent central region channels have one-way roof vents positioned at opposite ends of said adjacent central region channels.