A class a door can have a small viewing panel.
Class a and b fire doors.
These doors should hold integrity for an hour and stability and insulation for 30 minutes each.
If you own a commercial or non domestic property there are strict regulations and guidelines to follow ensuring the doors can withstand certain heats.
The six classes.
Class b 1 5 hour approved for doors in vertical shall openings not exceeding 1 200 sq.
Class a 3 hour approved for doors in dividing fire walls with openings not exceeding 1 200 sq.
Class a 15 15 minutes.
Doors direct class b fire doors have a two hour fire rating and are supplied with the doors pre hung in a steel frame.
Class a 30 30 minutes.
These doors typically have a fire resistant core.
Doors to be supplied with a minimum of 4 heavy duty fire rated stainless steel hinges.
Class b fire doors are usually specified in commercial and industrial buildings.
Matching steel frame made of 1 6mm thick pre galvanised steel complete with 30mm wide by 48mm deep rebate complete with 5 fixing.
Worryingly the fire door inspection scheme fdis recently highlighted that three quarters of all fire doors inspected in 2019 were condemned as not fit for purpose.
Class a 60 60 minutes.
With a class d fire door the stability integrity and insulation rating requires 2 hours with an impact test.
They can maintain integrity for two hours and stability and insulation for an hour each.
Please read door type information fire door on the home page for a guide on fire door requirements and product information before placing your order.
A class d fire door is a 2 hour fire door with a fire resistant core that can withstand an impact test with a mass of 27kg without creating an opening wider than 25mm between the door and frame.
Fire certification is available on request.
Allandel class e fire door 44mm thick complete with mdf face finish or a veneer of your choice and hardwood timber edging.
Matching steel frame made of 1 6mm thick pre galvanised steel complete with 30mm wide by 48mm deep rebate complete with 5 fixing.
A door having a 1 or 1 hr fire endurance rating suitable for use as a closure in a class b opening such as fire exits and passageways.
Standard door specifications for class b fire doors double and single drawing for illustration purposes only does not include ironmongery.
Doors to be supplied with a minimum of 5 heavy duty fire rated stainless steel hinges.
Allandel class b fire door 44mm thick complete with mdf face finish or a veneer of your choice and hardwood timber edging.