Fire Code of the Philippines Ebook - SafetySignsPH.com Fire Code of the Philippines eBook - SafetySignsPH | Page 93

2-hour fire resistance rating and all discharge directly outside
without travel through the open fire area storey.
c. Vertical openings between the open fire area storey and the floors
below shall be enclosed with the construction having a 2-hour fire
resistance rating. Other details shall be in accordance with the
applicable provisions of Section 10.2.5.2 of this IRR.
SECTION 10.2.5.7
RAMPS
A. Application
A ramp shall be permitted as component in a means of egress when it
conforms to the general requirements of Section 10.2.5.2 of this IRR and to
the special requirements of this Section.
B. Dimensional Criteria
The following dimensional criteria shall apply to ramps:
Table 5: DIMENSIONAL CRITERIA FOR NEW RAMPS
Dimensional Criteria
mm
in
Feature
Minimum width clear of all
obstructions, except projections
not more than 4½ in. (114 mm) at
or below handrail height on each side
Maximum slope
Maximum cross slope
Maximum rise for a single ramp run
44
1120
1 in 12
1 in 48
760
30
C. Protective Enclosure
1. When a ramp inside a building is used as an exit or exit component, it
shall be protected by separation from other parts of the building as
specified in Section 10.2.5.2 "B" of this IRR.
2. Fixed wired glass panels in steel sash may be installed in such a
separation in a building fully provided with approved, supervised
sprinkler system.
3. There shall be no enclosed usable space under ramps in an exit
enclosure nor shall the open space under such ramps be used for any
purpose.
D. Other Details
1. A ramp and the platforms and landings associated therewith shall be
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