Fire Resistance of Our Blocks - Thomas Armstrong

1 Thomas Armstrong ( concrete Blocks ) Limited following tables show the nominal fire Resistance periodsfor our various block types. The figures are in accordance with BS 5628 3 and BS EN 1996 1 wall Non-Loadbearing WallNo Finish VG plaster No Finish VG plaster90 1 hours 2 hours hours 3 hours100 2 hours 4 hours 2 hours 4 hours140 2 hours 4 hours 3 hours 6 hoursSolid Dense BlocksHistorically, buildings formed frommasonry have proven time and againto be among the safest and mostreliable fire -resistant building is true both during theconstruction phase and for the entirelifetime of the of the concrete Blocks in our rangeare non-combustible with zero spreadof flame and are classed as categoryA1 in accordance with BS EN Blocks & Insulite BlocksBlockmmLoadbearing wall Non-Loadbearing WallNo Finish VG plaster No Finish VG plaster90 1 hours 2 hours 2 hours 4 hours100 2 hours 4 hours 2 hours 6 hours140 3 hours 4 hours 4 hours 6 hoursHollow Dense BlocksLoadbearing wall Non-Loadbearing WallNo Finish VG plaster No Finish VG plaster140 3 hours 4 hours N/A N/A190 4 hours 4 hours 30 mins 1 hour215 6 hours 6 hours 30 mins 2 hoursBlockmmCellular Dense BlocksNon-Loadbearing wallNo Finish VG plaster100 2 hours 3 hours140 3 hours 6 hoursBlockmmFire

2 Resistance of Our BlocksAirtec Aerated BlocksBlockmmLoadbearing wall Non-Loadbearing WallNo Finish VG plaster No Finish VG plaster100 2 hours 3 hours 4 hours 4 hours140 3 hours 3 hours 4 hours 4 hours215 6 hours 6 hours 6 hours 6 hours VG vermiculite / gypsum plaster or pearlite /gypsum plaster 13mm thick applied to both facesof the single leaf wall.