Rolled roof vent and method of making same

Static structures (e.g. – buildings) – Enclosure or cover – with supplemental fluid-guiding port... – Attic vent

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52198, 52252, 454365, 126671, E04B 700

Patent

active

056735219

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.

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patent: 5425672 (1995-06-01), Rotter

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