A roof vent device for providing air intake to the valley of a roof where the valley of the roof extend from the soffit to the roof ridge. The device comprises a support surface mounted in contact with valley flashings on the roof. The support surface extends axially along the hip beam of the roof and joined by the jack rafters. At least one additional layer not as wide as the support surface but axially equal in length increase the space between the hip beam and the device's central axis. The additional layers do not extend as far as central axis of the support surface, thus creating an open space between the hip beam and the support surface. A pivot point in the central axis of the support surface permits the support surface to conform to any valley flashing used.

A ridge vent comprising a pair of opposing vent parts each fabricated from a plurality of stacked, interconnected layers of a corrugated plastic sheet material and a top panel extending between and connected to the opposing vent parts, with the entire assembled ridge vent being rolled into a spiral or coil, and secured in that configuration for later installation on a roof. The assembled ridge vent is rolled into the spiral configuration from an initially planar configuration by engaging a leading end of the ridge vent and rolling the ridge vent onto a drum or mandrel to form a tight, uniform spiral. The rolled vent can then be labeled and banded or packaged. The fabrication process from bulk rolls of sheet material to packaged roof vents can be substantially continuous and automated. Roof vents of various lengths or widths can be manufactured with only minor adjustments or substitutions in the fabrication equipment. The ridge vent is installed by placing the roll on the peak of the roof with the free end of the spiral extending over the top of the spiral and oriented away from the direction of installation. The blank is unrolled to expose a portion of the ridge vent, which is fastened to the roof. This process is repeated until the desired length is installed. Foam end caps and air deflectors optionally may be installed.

Ventilating material for covering a vent opening in a roof consists of multiple panels that interconnect with each other to condense the venting material for transport by permitting it to be folded into multiple layers. A fastening band extends around all but one of the panels and a second fastening band extends around all of the panels to thereby hold the panels together for transport. After the bundle is placed on the roof of a building structure, the second fastener is released to release the first panel, while the remaining panels remain bundled together by the other fastener. The method of creasing and folding the materials to permit multiple ply corrugated material to be folded to form the bundle of venting material is also disclosed. The folding process may also be used, according to still another aspect of the invention, to make a transport container of multiple ply corrugated material.

A ridge type roof vent. A roof vent is provided for use on a ridge of a roof. The vent has grillee portions flexibly located longitudinally along the lateral edges. The grille portions have at their distal end a set of flexible teeth adapted to fit on shingles and down between shingles in the gaps therebetween, so as to prevent passage between the grille and the shingle of any debris, insects, or vermin. The grille portions have void defining structures therein adapted to receive therethrough a nail guide and support, which guide is suitable for locating a nail to affix the vent to a roof. The vent is manufactured in a flat configuration, and thus it is capable of being easily packed and shipped. When folded at the hinged bends by the installer, the vent provides full venting capability while protecting against passage therethrough of unwanted debris, insects, or vermin.

A ventilating system for a roof made of a multi-plied weatherproof material. The weatherproof material includes a planar ply and a second ply joined such that a multiplicity of air passages is defined thereby. The air passages extend generally transversely to longitudinal axes of the embodiments. Each embodiment can be transported and stored in a spiral conformation. The spiral conformation is achieved by rolling the embodiment in a direction generally parallel to the longitudinal axis. A series of embodiments include a top panel and one or more lateral vents, rolled such that the one or more lateral vents are radially exposed. When shipped and stored in a spiral conformation, the embodiment with radially exposed lateral vents is more quickly and easily installed on a roof. Another embodiment, also conformable to a spiral for shipping and storing, is advantageously used to enhance ventilation by ventilating the eave.