Types of doors used in building construction are
- Roller shutter
- Most commonly found type.
- All close against a rebate on the door jamb.
- Four commonly found types
- Pin hinges allow door to swing in any direction.
- Door jamb not fitted with a rebate.
- Often partially glazed using wired glass or copper glazing bars.
- Found in restaurants, department stores and hotels.
- Present an obstruction to firefighting operations unless dealt.
- Usually 4 or 2 ‘wings’.
- Designed to be collapsed down.
- Essential they are used in conjunction with a hinged door.
- Solid or lattice construction.
- Widely used in commercial buildings.
- Can slide on one or both sides of an opening or into a central recess.
- Lattice type usually for security or to protect an area such as a lift or lift shaft.
- Usually lightweight construction.
- Similar in design to hinged doors.
- Two or more leaves hinged together.
- Whole door opens to one side only.
- Often used to separate two rooms.
- Door is counter balanced and pivoted so it rises upwards.
- Lies horizontal when open.
- Generally fits flush to the opening when closed.
- Usually found on garages.
- Nearly always made of steel
- Small examples can be raised by hand.
- Large examples usually operated by means of gearing and handle or chain and block.
- Usually found on commercial premises.
- A standard fire door will:
- Serve to contain the outbreak of fire.
- Restrict the spread of fire gases into otherwise unaffected parts of the building.
- A closed door restricts oxygen movement, thus helping to starve the fire.