Abstract: A roll-form spacer product providing an air space and drainage passageways within a building structure. Preferably, the spacer product is a thermoplasic web of material having hollow spacer elements formed integrally thereon. A first set of spacer elements projects outwardly from one face of the web and a second set of spacer elements projects from the other face of the web. The first and second sets of spacer elements are offset, project in opposite directions, and create air space and drainage passageways along each face. Thus, in a wall or roof construction, air, vapor and water are provided with exit paths extending along both the inner sheathing member and the outer building material. In addition, the web can also be provided with apertures for creating transverse paths therethrough.

Abstract: A roll-form roof ridge vent having alignment means to facilitate ease of installation. The indeterminate-length, single-sheet vent is provided with a pliable medial hinge strip, or a set of expandable live hinges, which enable the otherwise straight vent to be laterally and/or angularly repositioned from its substantially straight configuration. Thus, lateral adjustments can be made to the positioning of the vent as it is being installed so that the vent is centered throughout its length over the roof ridge. The lateral adjustments do not result in buckling of the vent or unwanted distortion.

Abstract: A roll-form roof ridge vent having a plurality of hollow cusps and a reinforced nail line. The cusps space the upper surface of the vent from the underlying roof to provide a path of ventilation therebetween. The reinforced nail line permits the use of standard pneumatic roofing nail guns to apply nails to the vent and overlying cap shingles. The reinforced vent resists compression and prevents nail heads of nails driven into hollow cusps of the vent from sinking past the upper surface of the vent. The nail line reinforcement material can be a fabric, elastomeric or other type of material.

Abstract: An adjustable-pitch sectional roof ridge vent formed as a one-piece, plastic, injection-molded body having an elongate top wall and a pair of opposed outer sidewalls depending outwardly and downwardly from peripheral longitudinal edges of the top wall. Each of the outer sidewalls has a lowermost edge, a plurality of ventilation openings, and an upturned flange projecting from the lowermost edge. The vent has a pair of opposed, integrally-formed end walls which depend from opposite ends of the top wall and which are each formed by a plurality of separate, spaced apart wall segments extending across the end of the top wall in substantially end-to-end single file alignment. Each pair of adjacent wall segments are spaced apart to form an open gap therebetween to enable ready flexing of the vent, and selected ones of the wall segments have an undulating configuration such that they interconnect to the top wall via a sinusoidal shaped juncture.

Abstract: An improved roll-form vent for buildings comprises a sequentially thermoformed polymeric vent which provides multiple venting air flow paths between the interior of a building and ambient atmosphere. The vent includes projections extending from a web and a plurality of vent openings that cooperate with screening to bar entry into the building of water, insects and foreign matter. A method of making the vent includes steps of providing a web of material of indeterminate running length, heating the web, sequentially thermoforming the web, cooling the web and rolling the formed vent for storage, shipment and use.

Abstract: An improved roll-form vent for buildings comprises a sequentially thermoformed polymeric vent which provides multiple venting air flow paths between the interior of a building and ambient atmosphere. The vent includes projections extending from a web and a plurality of vent openings that cooperate with screening to bar entry into the building of water, insects and foreign matter. A method of making the vent includes steps of providing a web of material of indeterminate running length, heating the web, sequentially thermoforming the web, cooling the web and rolling the formed vent for storage, shipment and use.

Abstract: A building structure of particular utility in wooden roof structures comprises an inner sheathing member, a membrane affixed to and overlaying the inner sheathing member, and an openwork member overlaying the membrane and supporting shingles away from the inner sheathing member. A method of installing a wooden roof structure so as to retard deterioration due to entrapped moisture involves affixing to a deck a layer of roofing felt, positioning over the felt an openwork matrix leaving multiple vapor flow paths therethrough, and affixing over the matrix a layer of shingles.