- APPLICATION INSTRUCTIONS
- ORDER REFERENCES
Envirograf® soffit board ventilators are made in many shapes and sizes. The vents fit into existing vent openings and seal up in a fire, stopping flames and hot gases reaching any loft area. An important precaution in case of fire in the lower rooms of a building, where the windows have blown out or been left open. Otherwise flames could burn through plastic soffit vents and catch the felt alight — spreading fire to loft rooms being used as bedrooms or playrooms. Essential for loft conversions.
- Circular or rectangular grilles containing intumescent material that seals the vent openings in the event of a fire
- Designed to protect roof space from flames and hot gases that may enter from broken or open windows below
- Ideal for loft conversions, particularly for use over high-risk rooms such as kitchens
FIRE TEST PERFORMANCE
Tested to BS476 Part 22 (1987), achieving an integrity of 66 minutes.
Rectangular grille – push recess into opening in soffit board and secure in place. Available 72mm x 215mm overall to suit 47mm x 215mm opening. (Other sizes can be made to suit – prices on request)
Circular grille – push recess into opening in soffit board. Available 82mm diameter overall to suit 68mm hole diameter (Other sizes can be made to suit – prices on request).
Please use the links below to download relevant information as PDF documents:
|REF||ETERNAL DIAMETER||OPENING DIAMETER|
|REF||EXTERNAL DIMENSIONS||OPENING DIMENSIONS|
|ES/SV/RECT||72mm x 215mm||47mm x 215mm|
|ES/SV/RECL||70mm x 590mm||50mm x 540mm|