Technical Data
Trimline Shingle-Over Ridge Vents are intended to be installed, in conjunction with eave, cornice or soffit vents, to provide natural ventilation of enclosed attic and rafter spaces.
The ridge vents are intended for use on roofs with a minimum slope of 2 units vertical to 12 horizontal up to a maximum slope of 20 units vertical to 12 units horizontal.
The ridge vents are composed of multiple layers of corrugated plastic with a thin StormStop® membrane bonded to it. The corrugated plastic is identified as Diversi-BoardTM, manufactured by Diversi-Plast® and is a high-density polyethylene with a nominal weight of 140 to 160 lb. (64 to 73 kg) per 1000 feet squared (93 meters squared). The vent consists of multiple layers of 2, 2-1/2 or 3 in. (51, 64 or 76 mm) wide corrugated Diversi-Board sheets that are bonded together along each edge of a flat layer of Diversi-Board of varying width. The ridge vent incorporates a groove in the center of the sheet for the full length of the vent.
High density polyethylene corrugated plastic resin has a brittleness temperature to -103 degrees F (ASTM D746) and a deflection temperature of +162 degrees at 66 PSI (ASTM D648). Has been tested and found to have a burn rate of 2.5 inches/minute (ASTM D635-91), a self ignition temperature of 734 degrees F (ASTM D1929-91a) and labeled "excellent" for a smoke density of 9.3% average (ASTM D2843-93).
The StormStop membrane is a spun bound non-absorbent polypropylene material. This material is rated to have excellent long-term dimensional stability and operates at temperatures up to 300 degrees F.
Corrugated plastic products fit the definition for "articles" which are manufactured items in solid form which do not release or otherwise result in exposure to a hazardous chemical under normal conditions of use. Material safety data sheets are not necessary for corrugated plastic.