Fire Resistant Door Vents

This is a photograph from a test conducted in a fire research laboratory.

Fire resistant door vents. By the tone of your question you seem to realize that a variety of smoke and heat dampers are available. Vents are vulnerable to wildfires when embers and flames enter into the enclosed attic or crawl spaces and ignite combustible materials in those areas. Dryer vent grill bird guards inserts stop birds nesting in dryer vents and bathroom exhaust vents 3 inch to 8 inch 2 pack 4 6 out of 5 stars 227 8 99 8. We offer a range of intumescent grilles and dampers with an added smoke control shutter.

Select fire resistant shrubs such as hedging roses bush. Seal attic and ground vents with pre cut plywood or commercial seals. When a wildfire nears and the vent reaches the critical temperature the intumescent coating on the matrix structure expands creating an insulating barrier from fire and embers. Flame ember resistant vents naturally provide less airflow than regular unprotected vents and brandguard vent airflow ratings nfva are approximately 30 that of the same size standard 1 4 screened vent and are listed within each products description.

Eaves and soffits should be protected with ignition resistant or non combustible materials. Do not use fiberglass or plastic mesh because they can melt and burn. Smoke protection is also vital. Some require electrical wiring controlled by an alarm system and some use a heat activated mechanism only.

Wherever ventilation is needed through a fire resisting wall or where ductwork runs through that wall an intumescent fire damper should be fitted at that point to maintain fire compartmentation. Bulk packs 0 drop down door seals 0 electrical protection 0 fire door closers 0 fire door glazing seals 0 fire door hinges 0 fire door kits 0 fire door safety week 1 fire exit panic hardware 1 fire pillows and barriers 0 fire rated foam 0 fire rated packers 0 fire wraps and collars 0 infection control 0 intumescent grilles 63 intumescent. It shows fire penetrating a frieze block vent with flames entering into what would be the attic. Cover all vent openings with 1 16 inch to 1 8 inch metal mesh.

Shut all windows and doors leaving them unlocked. These fire resistant air transfer grilles are developed to allow the free circulation of air at room temperature through construction elements walls doors etc while at the same time offering effective protection against flames smoke and gases in case of fire. An ember catching screen blocks dangerous embers during ember attacks long before the fire arrives.