Doors as Barriers to Fire and SmokeU.S. Government Printing Office, 1966 - 10 pages A study was made of means for improving dwelling unit entrance doors as fire and smoke barriers.Existing combustible doors and frames could be modified to enhance their fire resistance, but it did not appear practical to raise them to the level of rated commericial fire door assemblies.Fire retardant paints, except those consisting of heav * y, reinforced, intumescent-type coatings, provided little or no increase in fire resistance.Several modifications of existing doors were not effective in preventing the transmission of smoke.However, controlling the pressure levels on both sides of a door, as by suitable venting, appeared to offer a means of reducing smoke penetration into an area.It is recommended that current methods of fire tests of doors and criteria relating to their fire and smoke transmission be improved.(Author). |
Common terms and phrases
asb.-cement board Asbestos millboard asbestos-cement board Barriers to Fire Building Science Series Bureau of Standards combustible door and frame DOOR BOTTOM door edges door frames door top Doors as Barriers entrance doors existing doors F max FIGURE Fire and Smoke fire barrier fire door assembly fire exposure fire resistance fire retardant coating fire safety fire-retardant paint flame-through furnace chamber FURNACE PRESSURE furnace test frame glass fiber reinforcement glass fiber roving hardboard Interior enamel intumescent fire retardant INTUMESCENT STRIP limiting temperature rise metal and weather metal Sheet metal Model doors neutral pressure zone neutral zone NONCOMBUSTIBLE FACINGS OPTICAL DENSITY ordinary wood doors ovided panel spaces passage of flame phototube Radiation flux retardant paints Sheet metal Sheet smoke measurements smoke passage smoke transmission standard fire test standards organization steel fire door strip Sheet metal Test Method Tests of Door thermocouple transmission of smoke U.L. listed weather strip Sheet Woven glass fiber