34 Pa. Code § 57.11 - Story height
(a) C-4
occupancies shall be governed by the story height and construction type
limitations as follows:
(1)
Fireresistive construction modified.
(i) This shall be limited to three stories in
height with a maximum of 3,000 square feet per story between exterior walls or
2-hour fire walls. Exit corridors and stair towers shall not be included in the
3,000 square feet.
(ii) All general
provisions for fireresistive construction shall apply except that:
(A) Roof framing and sheathing may be of
wood; however, the roofing material shall be Class A, B, or C.
(B) Floor construction shall be of
incombustible material with a 1-hour fire rating.
(2)
Noncombustible construction
modified.
(i) This shall be limited
to two stories in height with a maximum of 3,000 square feet per story between
exterior walls or 2-hour fire walls. Exit corridors and stair towers shall not
be included in the 3,000 square feet.
(ii) Construction shall be 1-hour rated
construction in which bearing walls, columns, beams, other supporting members,
ceiling/roof assemblies, floor/ceiling assemblies, stairways, and other
openings through floors are of 1-hour rated construction.
(iii) Roof framing and sheathing may be of
wood; however, the roofing material shall be Class A, B, or
C.
(3)
Ordinary
construction modified.
(i) This
shall be limited to two stories in height with 3,000 square feet per story
between exterior walls or 2-hour fire walls. Exit corridors and stair towers
shall not be included in the 3,000 square feet.
(ii) Construction shall be 1-hour rated
construction in which bearing walls, columns, beams, other supporting members,
ceiling/roof assemblies, floor/ceiling assemblies, stairways, and other
openings through floors are of 1-hour rated construction.
(iii) Roofing shall be Class A, B, or
C.
(4)
Wood frame
construction modified.
(i) This
shall be limited to two stories in height with a maximum of 2,000 square feet
per story between exterior walls or 2-hour fire walls. Exit corridors and stair
towers shall not be included in the 2,000 square feet.
(ii) Construction shall be 1-hour rated
construction in which bearing walls, columns, beams, other supporting members,
ceiling/roof assemblies, floor/ceiling assemblies, stairways, and other
openings through floors are of 1-hour construction.
(iii) The roofing material shall be Class A,
B, or C.
(b)
Apartment units shall be separated from each other and all other portions of
the building by a minimum of 1-hour rated construction.
Notes
State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.
No prior version found.