Vent Smoke Out Of Roof

Mounted on the roof smoke and heat vents are of two basic types.

Vent smoke out of roof.

This morning around 8 am i happened to notic there was a white smoke coming from the roof appeared to be coming from the a c vent but hard to tell. For geometric smoke ventilation requirements our systems are fully tested and certified to en12101 2 on roof pitches between 15 90. A 24 year old melt out type smoke vent. I checked in the attic and there was no smoky smell or smoke.

The discoloration is a result of material deterioration due to age and uv exposure. My a c was not on at the time tho a c work fine. These flat roof smoke ventilators open to 160 which exceeds the requirements of the new smoke vent standard bs. I had my roof replaced around 2 mos ago.

Full open position of vent is obtained within 5 minutes after initial exposure to 500f complies with ul standard 793 for automatically operated roof vents for smoke and heat. Typically automatic vents are installed with curbs to protect them from the weather and to make them more visible to people walking on the roof photo a. The picture was taken in chicago and that is the south end of the smoke vent. Available with either glazed or solid covers vent smoke ventilators come in a wide range of shapes and sizes appropriate for various site requirements and to meet building regulation requirements of 1 0m2 or 1 5m2 free vent area.

Roof window and flashing are not included. Automatic mechanically operated and dropout. Boca 99 sbcci 99 icbo 97 ibc ifc nfpa 204 m 98 requirements.