P1.1 This Part sets out the required standards for Regulations 27 and 28.
P1.2 The standards in P2 apply to all buildings, except -
P2.6 applies only to a building of purpose group 1; and
P2.7 and P2.8 apply to all buildings other than a building of purpose group 1.
P1.3 The standards in P3 apply to an unvented hot water storage system in all buildings.
COLLISION WITH PROJECTIONS
P2.1 Any projection on a building, and any part of a building capable of being projected, must be positioned and secured so that it does not cause a dangerous obstruction to people outside, or inside, the building in circulation spaces and a door which swings both ways across a route of passage must be glazed or have a vision panel.
COLLISION WITH GLAZING
P2.2* Glazing in a building positioned where accidental collision with it is likely, must be constructed and installed, or protected, to minimise the danger of collision and injury to people.
CLEANING OF WINDOWS AND ROOFLIGHTS
P2.3* In a building of purpose group 1, any window or part of a window more than 4 m above the adjacent ground must be constructed so that its external and internal glazed surfaces can be safely cleaned from -
a. inside the building; or
b. from a loadbearing surface; or
c. a window access system mounted on the building,
except -
a window in any part of a building in common occupation which complies with the standard in P2.4b.
P2.4* In a building of purpose groups 2 to 7 and in that part of a building of purpose group 1 which is in common occupation every window and rooflight, except for a rooflight within a roof access hatch must -
a. be constructed to comply with P2.3, or
b. have provision for cleaning from a portable ladder where no part of any external or internal glazed surface is more than 9 m above -
i. the adjacent ground; or
ii. an adjacent loadbearing surface
which has suitable unobstructed space for the use of such a ladder.
EMERGENCY STOPPING OF ESCALATORS AND PASSENGER CONVEYORS
P2.5* Escalators and passenger conveyors must be provided with devices capable of being readily operated which, when activated, can bring the equipment to a controlled halt in such a way that passengers will be able to maintain their balance.
DISCHARGE OF STEAM OR HOT WATER
P2.6 Any vent pipe of a hot water system in a building of purpose group 1 must be positioned so that any discharge will not endanger anyone inside or outside the building.
ACCESS TO MANUAL CONTROLS
P2.7 A manual control for operating a window or rooflight forming part of a building of purpose groups 2 to 7 must be positioned so that the device can be operated without endangering the user of the control.
ROOF ACCESS
P2.8* A roof forming part of a building of purpose groups 2 to 7 must be provided with a safe and suitable access thereto including provision thereon of a suitable warning visibly identifying any part of the roof which is not capable of bearing a concentrated load of 0.9 kN per 130 millimetres square,
except -
a roof having eaves which at any part is at a height of less than 4.5 m above the adjacent ground need be provided only with a suitable warning.
UNVENTED HOT WATER STORAGE SYSTEM
P3.1* An unvented hot water storage system must be so constructed as to prevent the temperature of the stored water at any time exceeding 100°C and to provide adequate protection from malfunctions of the system