Vent Smoke Out Of Roof

The discoloration is a result of material deterioration due to age and uv exposure.

Vent smoke out of roof.

These flat roof smoke ventilators open to 160 which exceeds the requirements of the new smoke vent standard bs. I checked in the attic and there was no smoky smell or smoke. Melt out heat smoke vents. 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.

Boca 99 sbcci 99 icbo 97 ibc ifc nfpa 204 m 98 requirements. 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. Mounted on the roof smoke and heat vents are of two basic types.

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. For aerodynamic smoke ventilation requirements our systems are fully tested and certified to en12101 2 on roof pitches between 15 90. Roof window and flashing are not included.

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. 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. My a c was not on at the time tho a c work fine.