Jm One Way Roof Vents

The one way vent allows trapped air pressure to escape while the two way breather combined with the one way vent will help reduce moisture.

Jm one way roof vents.

The omg olyvent is engineered to prolong the life of the roof system by reducing moisture within the roof system and trapped air pressure within the building. 45 mil 1 14 mm thick reinforced tpo thermoplastic polyolefin membrane with 30 mil 0 76 mm thick factory applied peel and stick adhesive. At johns manville we provide our customers with the most complete set of products found in the commercial roofing industry. Molded one piece black polyethylene deck flange and body with weatherproof cap note.

Trapped air pressure and moisture can cause a reduction in thermal protection of the insulation and roof membrane system leading to roof deck damage. Z application servicesjm guarantee services details01 current details all systemsbituminous liquid applieddfe dynaf author. The first and most important difference is the geometry of the two systems kelly s vents are one way valves a breather valve that are positioned approximately 5 from the perimeter and are designed to transfer the negative pressure created by the vortex from the wind coming over the perimeter edge the negative zone underneath the membrane. For built up or modified bitumen systems black abs plastic resin deck flange and body with weatherproof gray abs plastic resin cap note.

Two part cold application insulation adhesive. Jm standard details fp 10 one way roof vent embrane compatible jm epdm ballast jm epdm anchor disc and acceptable fastener for mechanically jm epdm membrane 4 100 mm minimum beyond fasteners jm epdm bonding cement for adhered spec. Sbs is the most customizable of our low slow commercial roofing products with glass polyester and composite reinforcements. It can be installed with the widest variety of application methods including cold applied heat weld self adhered mechanically fastened and hot applied applications.

Jm one step foamable adhesive is a two component polyurethane adhesive used for attaching insulation or cover boards to the roof deck or to other insulation boards. We offer a full line of specialty products to support sbs and app modified bitumen and epdm pvc and tpo single ply membrane systems. The unit qualifies for all johns manville peak advantage guarantees for total system responsibility industry practice recommends the use of one vent per 1 000 sq ft 93 m2 of roofing area for vapor pressure control. The one way silicone rubber valve also prevents the entry of snow and wind blown rain.

Compatible with the following insulations cover boards and substrates1. For single ply systems and one way silicone rubber diaphragm that permits construction below roof membrane to breath.