This Old House Mdf Fire Rating For Garage Door

If the door is not solid wood or steel honeycomb and at least 1 3 8 thick then it must have a 20 minute fire rating.
This old house mdf fire rating for garage door. Most new garage doors are made of steel backed by rigid foam insulation. By the way cutting a hole in the door to install a pet door flap voids the 20 minute rating. Prehung on 4 9 16 inch 20 minute rated primed finger jointed frame with brickmould attached. Prehung on 4 9 16 in.
If you prefer the natural look of wood for your entry door jeld wen offers a selection of 20 minute fire rated doors with a 1 3 8 inch fire resistant core. Molded mdf solid core 20 minute fire rated door. Prices start at 250. Steel is also used.
Most are produced with an embossed wood grain pattern or with a smooth finish. It is not likely that any raised panel 1 3 8 door will ever have such a rating or qualify for proper garage house fire separation. Door to house this is the only place where any fire rating is specified. 20 minute nami fire rating label applied to door and frame.
The reason the inspector wants to see the tag is because then they know it is a 20 minute fire rated door and meets one of the choices for type of door for garage house fire separation. A good pick is thermatru s 90 minute fire rated steel version which comes in a variety of panel styles. Molded mdf solid core 20 minute fire rated door. Wide 20 minute rated primed finger jointed frame.
Panels made of 24 ga. 20 minute rated primed finger jointed frame with brickmould attached. Thermatru doors maumee oh. The suggested rough opening is 34 in.