10259947
Description
Mind Map by Eleanor Sarah Chambers, updated more than 1 year ago
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Created by Eleanor Sarah Chambers
almost 7 years ago
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Approved Document B
Volume 1
- B3 Protection if Openings and Fire-Stopping
- Section 7 - Protection of Openings
and Fire-Stopping
- Openings for
Pines
- Proprietary Seals = has
been shown by test to
protect walls, floors and
cavity barriers.
- Pipes with a Restricted
Diameter = fire stopping
to be used around pipe
to keep opening as small
as possible
- 160mm or smaller
depending on
circumstance
- 160mm or smaller
depending on
circumstance
- Sleeving = Non-combustible
pipe can be used as a sleeve
around a smaller lead,
aluminium, aluminium alloy,
fibre cement or uPVC pipe.
- Proprietary Seals = has
been shown by test to
protect walls, floors and
cavity barriers.
- For a fire protecting
element to be effective the
area should be adqeuatley
sealed ot fire stopped
- Ventiliation Ducts, Flues etc.
- Where circulation is
occuring in a dwellling
house taller than 4.5m
need to comply with 2.16
- If it passes through a
compartment wall check B
Volume 2
- If it passes through a
compartment wall check B
Volume 2
- If a flue/duct contains flues/ducts
and passes through compartment
wall/floor or built into a wall then it
needs to be resistance at least half
of wall/door
- Where circulation is
occuring in a dwellling
house taller than 4.5m
need to comply with 2.16
- Fire-Stopping
- In addition to any other
precautions in this document the
following must also be fire-stopped.
- Joints between
fire-separating elements
(fire barries)
- openings that pass
through
fire-separating
element
- Few as possible
- Small as
practical
- Fire stopped
- Few as possible
- Joints between
fire-separating elements
(fire barries)
- Materials used for fire stopped
should be supported by ones of
limited combustability
- In all cases where
unsupported span
is less than 100mm
- Where non-rigid
materials have been
used.
- In all cases where
unsupported span
is less than 100mm
- Brands of fire
stopping & sealing
systems my be used
on the premis that
they have been
tested.
- There are other
products whos original
use was not for fire
stopping but are good at
it can be used.
- Cement mortar
- Gypsum-based plaster
- cement-based or
gypsum-based
cermiculite/perlite
plaster
- Intrumescent
mastics
- Cement mortar
- There are other
products whos original
use was not for fire
stopping but are good at
it can be used.
- In addition to any other
precautions in this document the
following must also be fire-stopped.
- Openings for
Pines
- Section 7 - Protection of Openings
and Fire-Stopping
- B4 External Fire
Spread
- (1) The external walls of the building shall adequatly resist the
spread of fire over the walls and from one building to another,
having regard to the height, use and position of the building
(2) The roof of the building shall adequatley resit the spread of
fire over the roof and from one building to another, having
regard to the use and position of the building.
- Construction of external walls and sepiration between them
- (1) The external walls of the building shall adequatly resist the
spread of fire over the walls and from one building to another,
having regard to the height, use and position of the building
(2) The roof of the building shall adequatley resit the spread of
fire over the roof and from one building to another, having
regard to the use and position of the building.
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