Cor-A-Vent Product Guide

COR-A-VENT ® S-400 Soffit/Eave Vents Simple Solutions for all Your Eave Venting Details. The science of a good ridge and soffit vent system depends upon the equalization or “balance” of its two components – the soffit/eave (intake) air and the ridge (exhaust) air. This principle of good venting practice works well with most traditional roof designs. However, many contemporary house and roof designs are limited in how well they can be naturally ventilated. This is a result of restriction in the amount of, or placement of critical intake ventilation. In the interest of modern architecture and good ventilation practices, COR-A-VENT ® has developed various unique soffit venting applications using our S-400 Strip Vent. All ridge vents, work best with soffit/eave (intake) vents. For the top performance, place the intake vents low on the structure, typically at the overhangs. With new construction or when re-roofing, all other attic exhaust vents such as gable-end, roof, or turbine vents should either be blocked off or removed. The stack effect (rising warmer air) is enhanced and thus maximum updraft (ventilation) is obtained when no other opening(s) can distort the air pattern between the intake and the exhaust vents. *Net Free Vent Area • There really are as many ways to install S-400 Strip Vent as there are eave construction details • 1" x 1 1 / 2 " x 4' cross section gives you maximum soffit/eave ventilation in a minimum space • 10 sq. in. NFVA* per lineal foot • S-400 fits narrow spaces where other vents can’t, like zero overhangs • The durable 4' Polypropylene (PP) sections are available in black, white or tan, 24 – 4’ pieces (96 l.f.) per carton • Self-cleaning – vertical flute orientation doesn’t show the dirt • Crush resistant so you can install with a power nail gun • Pair up S-400 with any of COR-A-VENT’s ridge vent products for an unbeatable system • Can be installed in multiple layers for additional ventilation 2 x 6 ROOF RAFTER RIDGE CAP V-600 or V-600E RIDGE VENT ORIGINAL SHEATHING 2 x 2 INSULATION RAILING 2 x 2 FIRING STRIPS @ O.C. - RAFTERS S-400 STRIP VENT AIR AIR FLOW AIR FLOW AIR FLOW RIGID FOAM INSULATION CONTINUOUS WATERPROOFING MEMBRANE 2" AIR-WAY COR-A-VENT ® S-400 WITH SHED ROOF DETAIL AIR FLOW RAFTER INSULATION BLOCKING S-400 STRIP VENT AIR FLOW COR-A-VENT ® S-400 ST IP VENT APPLICATION USING ENGINEERED TRUSS S-400 STRIP VENT AIR FLOW INSULATION AIR VENTILATION CHUTE TRUSS COR-A-VENT ® S-400 ZERO OVERHANG SOFFIT DETAIL INSULATION S-400 STRIP VENT AIR VENTILATION CHUTE AIR FLOW RAFTER COR-A-VENT ® S-400 WITH OVERHANG SOFFIT DETAIL S-400 STRIP VENT AIR VENTILATION CHUTE AIR FLOW RAFTER INSULATION Cold Roof Application Wood Overhang (Typical) Engineered Truss Zero Overhang (Salt Box/Cape Cod) Shed Roof Figuring Your Ventilation Needs: V-600: Square footage of building footprint X .48 = Lineal Feet V-600 needed 20 Example: 25' x 50' = 1250 Sq.F. 1250 x .48 = 600 600 ÷ 20 = 30 L.F. V-600 needed The above formulas will give the amount of V-600 ridge vent needed for a 1/150 vent ratio, provided an equal or greater amount of soffit venting is used. For a 1/300 ratio, (building code minimum) use half the amount of ridge vent. Note: Code interpretations may vary. Consult your local building dept. For the best appearance and performance install COR-A-VENT ridge and soffit vents continuously at the ridge and in the soffits. Maintaining an unrestricted air passageway between the soffit and ridge is crucial to the performance of the vent system, and must not be blocked or restricted. COR-A-VENT recommends a minimum 2" air space between the roof sheathing and vent chute or insulation. Note: Should you need any assistance in designing your ventilation system, fax or mail a sketch and information to our technical services department. COR-A-VENT will respond with recommendations for your particular building design. This material may be duplicated only for the purposes of specifying COR-A-VENT products. No permission is given to duplicate or otherwise copy this material for any other purpose without the express written permission of COR-A-VENT, Inc. © 2005 COR-A-VENT, Inc. 01/20/15 1" 1 1 / 2 " (END VIEW ) (EDGE VIEW ) 4'-0" COR-A-VENT, Inc. • P.O. Box 428 • Mishawaka, IN 46546-0428 Phone: (800) 837-8368 • Fax: (800) 645-6162 info@cor-a-vent.com • www.cor-a-vent.com