reglab/statecodes huggingface dataset:
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 23 - Wood › Section 2308 - CONVENTIONAL LIGHT-FRAME CONSTRUCTION › Subsection 2308.3 - Braced wall lines

Current through Register 1525, July 5, 2024
Buildings shall be provided with exterior and interior
				  braced wall lines as described in Section 2308.9.3 and installed in accordance
				  with Sections 2308.3.1 through 2308.3.4.
2308.3.1
Spacing.
Spacing of
				braced wall lines shall not exceed 35 feet (10 668 mm) o.c. in both the
				longitudinal and transverse directions in each
story
.
2308.3.2
Braced wall line connections.
Wind and seismic lateral forces
				shall be transferred from the roofs and floors to braced wall lines and from
				the braced wall lines in upper stories to the braced wall lines in the
story
below in accordance with is section.
Braced wall line top plates shall be fastened to joists,
				  rafters or full-depth blocking above in accordance with Table 2304.9.1, Items
				  11, 12, 15 or 19 as applicable based on the orientation of the joists or
				  rafters to the braced wall line. Braced wall line bottom plates shall be
				  connected to joists or blocking below in accordance with Table 2304.9.1, Item
				  6, or to foundations in accordance with Section 2308.3.3. At exterior gable end
				  walls, braced wall panel sheathing in the top
story
shall be
				  extended and fastened to roof framing where the spacing between parallel
				  exterior braced wall lines is greater than 50 feet (15 240 mm).
Exception:
Where roof trusses are used and are
				  installed perpendicular to an exterior braced wall line, lateral forces shall
				  be transferred from the roof diaphragm to the braced wall by blocking of the
				  ends of the trusses or by other
approved
methods providing
				  equivalent lateral force transfer. Blocking shall be a minimum of 2 inches (51
				  mm) nominal in thickness and equal to the depth of the truss at the wall line
				  and shall be fastened to the braced wall line top plate as specified in Table
				  2304.9.1, Item 11.
2308.3.3
Sill anchorage.
Where foundations are required by Section
				2308.3.4, braced wall line sills shall be anchored to concrete or masonry
				foundations. Such anchorage shall conform to the requirements of Section 2308.6
				except that such anchors shall be spaced at not more than 4 feet (1219 mm) o.c.
				for structures over two
stories above
grade
				plane
. The anchors shall be distributed along the length of the braced
				wall line. Other anchorage devices having equivalent capacity are permitted.
2308.3.3.1
Anchorage to all-wood
				foundations.
Where all-wood foundations are used, the force transfer
				from the braced wall lines shall be determined based on calculation and shall
				have a capacity greater than or equal to the connections required by Section
				2308.3.3.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 23 - Wood › Section 2308 - CONVENTIONAL LIGHT-FRAME CONSTRUCTION › Subsection 2308.4 - Design of elements

Current through Register 1525, July 5, 2024
Combining of engineered elements or systems and
				  conventionally specified elements or systems is permitted subject to the
				  following limits:
2308.4.1
Elements exceeding limitations of conventional construction.
When a
				building of otherwise conventional construction contains structural elements
				exceeding the limits of Section 2308.2, these elements and the supporting load
				path shall be designed in accordance with accepted engineering practice and the
				provisions of this code.
2308.4.2
Structural elements or systems not described herein.
When a
				building of otherwise conventional construction contains structural elements or
				systems not described in Section 2308, these elements or systems shall be
				designed in accordance with accepted engineering practice and the provisions of
				this code. The extent of such design need only demonstrate compliance of the
				nonconventional elements with other applicable provisions of this code and
				shall be compatible with the performance of the conventionally framed
				system.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 23 - Wood › Section 2308 - CONVENTIONAL LIGHT-FRAME CONSTRUCTION › Subsection 2308.5 - Connections and fasteners

Current through Register 1525, July 5, 2024
Connections and fasteners used in conventional construction
				  shall comply with the requirements of Section 2304.9.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 23 - Wood › Section 2308 - CONVENTIONAL LIGHT-FRAME CONSTRUCTION › Subsection 2308.6 - Foundation plates or sills

Current through Register 1525, July 5, 2024
Foundations and footings shall be as specified in Chapter
				  18. Foundation plates or sills resting on concrete or masonry foundations shall
				  comply with Section 2304.3.1. Foundation plates or sills shall be bolted or
				  anchored to the foundation with not less than
				  1/2-inch-diameter (12.7 mm)
				  steel bolts or
approved
anchors spaced to provide equivalent
				  anchorage as the steel bolts. Bolts shall be embedded at least 7 inches (178
				  mm) into concrete or masonry, and spaced not more than 6 feet (1829 mm) apart.
				  There shall be a minimum of two bolts or anchor straps per piece with one bolt
				  or anchor strap located not more than 12 inches (305 mm) or less than 4 inches
				  (102 mm) from each end of each piece. A properly sized nut and washer shall be
				  tightened on each bolt to the plate.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 23 - Wood › Section 2308 - CONVENTIONAL LIGHT-FRAME CONSTRUCTION › Subsection 2308.7 - Girders

Current through Register 1525, July 5, 2024
Girders for single-story construction or girders supporting
				  loads from a single floor shall not be less than 4 inches by 6 inches (102 mm
				  by 152 mm) for spans 6 feet (1829 mm) or less, provided that girders are spaced
				  not more than 8 feet (2438 mm) o.c. Spans for built-up 2-inch (51 mm) girders
				  shall be in accordance with Table 2308.9.5 or 2308.9.6. Other girders shall be
				  designed to support the loads specified in this code. Girder end joints shall
				  occur over supports.
Where a girder is spliced over a support, an adequate tie
				  shall be provided. The ends of beams or girders supported on masonry or
				  concrete shall not have less than 3 inches (76 mm) of
				  bearing.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 23 - Wood › Section 2308 - CONVENTIONAL LIGHT-FRAME CONSTRUCTION › Subsection 2308.11 - Additional requirements for conventional construction in Seismic Design Category B or C

Current through Register 1525, July 5, 2024
Structures of
conventional light-frame
				  construction
in
Seismic Design Category
B or C, as
				  determined in Section 1613, shall comply with Sections 2308.11.1 through
				  2308.11.3, in addition to the provisions of Sections 2308.1 through
				  2308.10.
2308.11.1
Number of
				stories.
Structures of
conventional light-frame
				construction
shall not exceed two
stories above
grade plane
in
Seismic Design Category
C.
2308.11.2
Concrete or
				masonry.
Concrete or masonry walls and stone or masonry veneer shall not
				extend above a basement.
Exceptions:
1. Stone and masonry veneer is permitted to
				be used in the first two
stories above
grade
				plane
or the first three
stories above
grade
				plane
where the lowest
story
has concrete or masonry
				walls in
Seismic Design Category
B, provided that structural
				use panel wall bracing is used and the length of bracing provided is one- and
				one-half times the required length as determined in Table
				2308.9.3(1).
2. Stone and masonry
				veneer is permitted to be used in the first
story
above
grade plane
or the first two
stories above
grade plane
where the lowest
story
has concrete or masonry walls in
Seismic Design
				Category
B or C.
3. Stone
				and masonry veneer is permitted to be used in both stories of buildings with
				two
stories above grade plane
in
Seismic Design
				Categories
B and C, provided the following criteria are met:
3.1. Type of brace per Section 2308.9.3 shall
				be Method 3 and the allowable shear capacity in accordance with Table 2306.3
				shall be a minimum of 350 plf (5108 N/m).
3.2. Braced wall panels in the second
story
shall be located in accordance with Section 2308.9.3 and
				not more than 25 feet (7620 mm) on center, and the total length of braced wall
				panels shall be not less than 25 percent of the braced wall line length. Braced
				wall panels in the first
story
shall be located in accordance
				with Section 2308.9.3 and not more than 25 feet (7620 mm) on center, and the
				total length of braced wall panels shall be not less than 45 percent of the
				braced wall line length.
3.3.
				Hold-down connectors shall be provided at the ends of each braced wall panel
				for the second
story
to first
story
connection with an allowable design of 2,000 pounds (8896 N). Hold-down
				connectors shall be provided at the ends of each braced wall panel for the
				first story to foundation connection with an allowable capactiy of 3,900 pounds
				(17 347 N). In all cases, the hold- down connector force shall be transferred
				to the foundation.
3.4. Cripple
				walls shall not be permitted.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 23 - Wood › Section 2308 - CONVENTIONAL LIGHT-FRAME CONSTRUCTION › Subsection 2308.12 - Additional requirements for conventional construction in Seismic Design Category D or E

Current through Register 1525, July 5, 2024
Structures of
conventional light-frame
				  construction
in
Seismic Design Category
D or E, as
				  determined in Section 1613, shall conform to Sections 2308.12.1 through
				  2308.12.9, in addition to the requirements for
Seismic Design
				  Category
B or C in Section 2308.11.
2308.12.1
Number of stories.
Structures of
conventional light-frame construction
shall not
				exceed one
story
above
grade
				plane
in
Seismic Design Category
D or E.
2308.12.2
Concrete or masonry.
Concrete or masonry walls and stone or masonry veneer shall not extend above a
				basement.
Exception:
Stone and masonry veneer is permitted
				  to be used in the first
story
above
grade plane
in
Seismic Design Category
D,
				  provided the following criteria are met:
1. Type of brace in accordance with Section
				2308.9.3 shall be Method 3 and the allowable shear capacity in accordance with
				Table 2306.3 shall be a minimum of 350 plf (5108 N/m).
2. The bracing of the first
story
shall be located at each end and at least every 25 feet
				(7620 mm) o.c. but not less than 45 percent of the braced wall line.
3. Hold-down connectors shall be provided at
				the ends of braced walls for the first floor to foundation with an allowable
				capacity of 2,100 pounds (9341 N).
4. Cripple walls shall not be
				permitted.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2401 - GENERAL › Subsection 2401.1 - Scope

Current through Register 1525, July 5, 2024
The provisions of this chapter shall govern the materials,
				  design, construction and quality of glass, light- transmitting ceramic and
				  light-transmitting plastic panels for exterior and interior use in both
				  vertical and sloped applications in buildings and structures.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2402 - DEFINITIONS › Subsection 2402.1 - Definitions

Current through Register 1525, July 5, 2024
The following words and terms shall, for the purposes of
				  this chapter and as used elsewhere in this code, have the meanings shown
				  herein.
DALLE GLASS.
A decorative composite glazing
				  material made of individual pieces of glass that are embedded in a cast matrix
				  of concrete or epoxy.
DECORATIVE GLASS.
A carved, leaded or Dalle
				  glass or glazing material whose purpose is decorative or artistic, not
				  functional; whose coloring, texture or other design qualities or components
				  cannot be removed without destroying the glazing material and whose surface, or
				  assembly into which it is incorporated, is divided into
				  segments.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2403 - GENERAL REQUIREMENTS FOR GLASS › Subsection 2403.1 - Identification

Current through Register 1525, July 5, 2024
Each pane shall bear the manufacturer's
mark
designating the type and thickness of the glass or
				  glazing material. The identification shall not be omitted unless
approved
and an affidavit is furnished by the glazing
				  contractor certifying that each light is glazed in accordance with
approved construction documents
that comply with the
				  provisions of this chapter. Safety glazing shall be identified in accordance
				  with Section 2406.2.
Each pane of tempered glass, except tempered spandrel glass,
				  shall be permanently identified by the manufacturer. The identification
mark
shall be acid etched, sand blasted, ceramic fired, laser
				  etched, embossed or of a type that, once applied, cannot be removed without
				  being destroyed.
Tempered spandrel glass shall be provided with a removable
				  paper marking by the manufacturer.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2403 - GENERAL REQUIREMENTS FOR GLASS › Subsection 2403.2 - Glass supports

Current through Register 1525, July 5, 2024
Where one or more sides of any pane of glass are not firmly
				  supported, or are subjected to unusual load conditions, detailed
construction documents
, detailed shop drawings and analysis or
				  test data assuring safe performance for the specific installation shall be
				  prepared by a
registered design
				  professional
.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2403 - GENERAL REQUIREMENTS FOR GLASS › Subsection 2403.3 - Framing

Current through Register 1525, July 5, 2024
To be considered firmly supported, the framing members for
				  each individual pane of glass shall be designed so the deflection of the edge
				  of the glass perpendicular to the glass pane shall not exceed
				  1/175 of the glass edge
				  length or 3/4 inch (19.1 mm),
				  whichever is less, when subjected to the larger of the positive or negative
				  load where loads are combined as specified in Section 1605.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2403 - GENERAL REQUIREMENTS FOR GLASS › Subsection 2403.4 - Interior glazed areas

Current through Register 1525, July 5, 2024
Where interior glazing is installed adjacent to a walking
				  surface, the differential deflection of two adjacent unsupported edges shall
				  not be greater than the thickness of the panels when a force of 50 pounds per
				  linear foot (plf) (730 N/m) is applied horizontally to one panel at any point
				  up to 42 inches (1067 mm) above the walking surface.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2403 - GENERAL REQUIREMENTS FOR GLASS › Subsection 2403.5 - Louvered windows or jalousies

Current through Register 1525, July 5, 2024
Float, wired and patterned glass in louvered windows and
				  jalousies shall be no thinner than nominal
				  3/16 inch (4.8 mm) and no
				  longer than 48 inches (1219 mm). Exposed glass edges shall be smooth.
Wired glass with wire exposed on longitudinal edges shall not
				  be used in louvered windows or jalousies.
Where other glass types are used, the design shall be
				  submitted to the
building official
for
				  approval.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2404 - WIND, SNOW, SEISMIC AND DEAD LOADS ON GLASS › Subsection 2404.1 - Vertical glass

Current through Register 1525, July 5, 2024
Glass sloped 15 degrees (0.26 rad) or less from vertical in
				  windows, curtain and window walls, doors and other exterior applications shall
				  be designed to resist the wind loads in Section 1609 for components and
				  cladding. Glass in glazed curtain walls, glazed storefronts and glazed
				  partitions shall meet the seismic requirements of ASCE 7, Section 13.5.9. The
				  load resistance of glass under uniform load shall be determined in accordance
				  with ASTM E 1300.
The design of vertical glazing shall be based on the
				  following equation:
F
gw <=
F
ga
(Equation 24-1)
where:
F
gw = Wind load on
				  the glass computed in accordance with Section 1609.
F
ga = Short duration
				  load on the glass as determined in accordance with ASTM E
				  1300.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2404 - WIND, SNOW, SEISMIC AND DEAD LOADS ON GLASS › Subsection 2404.2 - Sloped glass

Current through Register 1525, July 5, 2024
Glass sloped more than 15 degrees (0.26 rad) from vertical
				  in skylights, sunrooms, sloped roofs and other exterior applications shall be
				  designed to resist the most critical of the following combinations of
				  loads.
F
g
=
							 W
o
- D
(Equation 24-2)
F
g
=
							 W
i
+ D +
0.5
S
(Equation 24-3)
F
g
=
0.5
W
i
+ D +
							 S
(Equation 24-4)
where:
D
= Glass dead load psf
				  (kN/m2).
For glass sloped 30 degrees (0.52 rad) or less from
				  horizontal,
= 13
t
g (For SI:
				  0.0245
t
g).
For glass sloped more than 30 degrees (0.52 rad) from
				  horizontal,
= 13
t
g cos [THETA]
				  (For SI: 0.0245
t
gcos [THETA]).
F
g = Total load, psf
				  (kN/m2) on glass.
S = Snow load, psf (kN/m2) as
				  determined in Section 1608.
t
g = Total glass
				  thickness, inches (mm) of glass panes and plies.
W
i = Inward wind
				  force, psf (kN/m2) as calculated in Section
				  1609.
W
o= Outward wind
				  force, psf (kN/m2) as calculated in Section
				  1609.
[THETA] = Angle of slope from horizontal.
Exception:
Unit skylights shall be designed in
				  accordance with Section 2405.5.
The design of sloped glazing shall be based on the following
				  equation:
F
g
<= F
ga
(Equation 24-5)
where:
F
g = Total load on
				  the glass determined from the load combinations above.
F
ga = Short duration
				  load resistance of the glass as determined according to ASTM E 1300 for
				  Equations 24-2 and 24-3; or the long duration load resistance of the glass as
				  determined according to ASTM E 1300 for Equation 24-4.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2404 - WIND, SNOW, SEISMIC AND DEAD LOADS ON GLASS › Subsection 2404.3 - Wired, patterned and sandblasted glass

Current through Register 1525, July 5, 2024
2404.3.1
Vertical wired glass.
Wired glass sloped 15 degrees (0.26 rad) or less from vertical in windows,
				curtain and window walls, doors and other exterior applications shall be
				designed to resist the wind loads in Section 1609 for components and cladding
				according to the following equation:
F
gw
<
0.5
F
ge
(Equation 24-6)
where:
F
gw = Is the wind
				  load on the glass computed per Section 1609.
F
ge = Nonfactored
				  load from ASTM E 1300 using a thickness designation for monolithic glass that
				  is not greater than the thickness of wired glass.
2404.3.2
Sloped wired glass.
Wired glass sloped more than 15 degrees (0.26 rad) from vertical in skylights,
				sunspaces, sloped roofs and other exterior applications shall be designed to
				resist the most critical of the combinations of loads from Section 2404.2.
For Equations 24-2 and 24-3:
F
g
<
0.5
F
ge
(Equation 24-7)
For Equation 24-4:
F
g
<
0.3
F
ge
(Equation 24-8)
where:
F
g = Total load on
				  the glass.
F
ge = Nonfactored
				  load from ASTM E 1300.
2404.3.3
Vertical patterned glass.
Patterned glass sloped 15 degrees (0.26 rad)
				or less from vertical in windows, curtain and window walls, doors and other
				exterior applications shall be designed to resist the wind loads in Section
				1609 for components and cladding according to the following equation:
F
gw
<
1.0
F
ge
(Equation 24-9)
where:
F
gw
=
Wind load on the glass computed per Section 1609.
F
ge = Nonfactored
				  load from ASTM E 1300. The value for patterned glass shall be based on the
				  thinnest part of the glass. Interpolation between nonfactored load charts in
				  ASTM E 1300 shall be permitted.
2404.3.4
Sloped patterned glass.
Patterned glass sloped more than 15 degrees (0.26 rad) from vertical in
				skylights, sunspaces, sloped roofs and other exterior applications shall be
				designed to resist the most critical of the combinations of loads from Section
				2404.2.
For Equations 24-2 and 24-3:
F
g
<
1.0
F
ge
(Equation 24-10)
For Equation 24-4:
F
g
<
0.6
F
ge
(Equation 24-11 )
where
F
g = Total load on
				  the glass.
F
ge = Nonfactored
				  load from ASTM E 1300. The value for patterned glass shall be based on the
				  thinnest part of the glass. Interpolation between the nonfactored load charts
				  in ASTM E 1300 shall be permitted.
2404.3.5
Vertical sandblasted
				glass.
Sandblasted glass sloped 15 degrees (0.26 rad) or less from
				vertical in windows, curtain and window walls, doors, and other exterior
				applications shall be designed to resist the wind loads in Section 1609 for
				components and cladding according to the following equation:
F
g
<
0.5
F
ge
(Equation 24-12)
where:
F
g = Total load on
				  the glass.
F
ge = Nonfactored
				  load from ASTM E 1300. The value for sandblasted glass is for moderate levels
				  of sandblasting.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2404 - WIND, SNOW, SEISMIC AND DEAD LOADS ON GLASS › Subsection 2404.4 - Other designs

Current through Register 1525, July 5, 2024
For designs outside the scope of this section, an analysis
				  or test data for the specific installation shall be prepared by a
registered design professional
.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2405 - SLOPED GLAZING AND SKYLIGHTS › Subsection 2405.1 - Scope

Current through Register 1525, July 5, 2024
This section applies to the installation of glass and other
				  transparent, translucent or opaque glazing material installed at a slope more
				  than 15 degrees (0.26 rad) from the vertical plane, including glazing materials
				  in skylights, roofs and sloped walls.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2405 - SLOPED GLAZING AND SKYLIGHTS › Subsection 2405.2 - Allowable glazing materials and limitations

Current through Register 1525, July 5, 2024
Sloped glazing shall be any of the following materials,
				  subject to the listed limitations.
1.
				For monolithic glazing systems, the glazing material of the single light or
				layer shall be laminated glass with a minimum 30-mil (0.76 mm) polyvinyl
				butyral (or equivalent) interlayer, wired glass, light-transmitting plastic
				materials meeting the requirements of Section 2607, heat-strengthened glass or
				fully tempered glass.
2. For
				multiple-layer glazing systems, each light or layer shall consist of any of the
				glazing materials specified in Item 1 above.
Annealed glass is permitted to be used as specified within
				  Exceptions 2 and 3 of Section 2405.3.
For additional requirements for plastic skylights, see
				  Section 2610. Glass-block construction shall conform to the requirements of
				  Section 2101.2.5.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2405 - SLOPED GLAZING AND SKYLIGHTS › Subsection 2405.3 - Screening

Current through Register 1525, July 5, 2024
Where used in monolithic glazing systems, heat-strengthened
				  glass and fully tempered glass shall have screens installed below the glazing
				  material. The screens and their fastenings shall:
(1) be capable of supporting twice the weight
				of the glazing;
(2) be firmly and
				substantially fastened to the framing members and
(3) be installed within 4 inches (102 mm) of
				the glass. The screens shall be constructed of a noncombustible material not
				thinner than No. 12 B&S gage (0.0808 inch) with mesh not larger than 1 inch
				by 1 inch (25 mm by 25 mm). In a corrosive atmosphere, structurally equivalent
				noncorrosive screen materials shall be used. Heat- strengthened glass, fully
				tempered glass and wired glass, when used in multiple-layer glazing systems as
				the bottom glass layer over the walking surface, shall be equipped with
				screening that conforms to the requirements for monolithic glazing systems.
Exception:
In monolithic and multiple-layer
				  sloped glazing systems, the following applies:
1. Fully tempered glass installed without
				protective screens where glazed between intervening floors at a slope of 30
				degrees (0.52 rad) or less from the vertical plane shall have the highest point
				of the glass 10 feet (3048 mm) or less above the walking surface.
2. Screens are not required below any glazing
				material, including annealed glass, where the walking surface below the glazing
				material is permanently protected from the risk of falling glass or the area
				below the glazing material is not a walking surface.
3. Any glazing material, including annealed
				glass, is permitted to be installed without screens in the sloped glazing
				systems of commercial or detached noncombustible greenhouses used exclusively
				for growing plants and not open to the public, provided that the height of the
				greenhouse at the ridge does not exceed 30 feet (9144 mm) above
				grade.
4. Screens shall not be
				required within individual
dwelling units
in Groups R-2, R-3
				and R-4 where fully tempered glass is used as single glazing or as both panes
				in an insulating glass unit, and the following conditions are met:
4.1. Each pane of the glass is 16 square feet
				(1.5 m2) or less in area.
4.2. The highest point of the glass is 12
				feet (3658 mm) or less above any walking surface or other accessible
				area.
4.3. The glass thickness is
				3/16 inch (4.8 mm) or
				less.
5. Screens shall
				not be required for laminated glass with a 15-mil (0.38 mm) polyvinyl butyral
				(or equivalent) interlayer used within individual
dwelling
				units
in Groups R-2, R-3 and R-4 within the following limits:
5.1. Each pane of glass is 16 square feet
				(1.5 m2) or less in area.
5.2. The highest point of the glass is 12
				feet (3658 mm) or less above a walking surface or other accessible
				area.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2405 - SLOPED GLAZING AND SKYLIGHTS › Subsection 2405.4 - Framing

Current through Register 1525, July 5, 2024
In Type I and II construction, sloped glazing and skylight
				  frames shall be constructed of noncombustible materials. In structures where
				  acid fumes deleterious to metal are incidental to the use of the buildings,
approved
pressure-treated wood or other
approved
noncorrosive materials are permitted to be used for
				  sash and frames. Framing supporting sloped glazing and skylights shall be
				  designed to resist the tributary roof loads in Chapter 16. Skylights set at an
				  angle of less than 45 degrees (0.79 rad) from the horizontal plane shall be
				  mounted at least 4 inches (102 mm) above the plane of the roof on a curb
				  constructed as required for the frame. Skylights shall not be installed in the
				  plane of the roof where the roof pitch is less than 45 degrees (0.79 rad) from
				  the horizontal.
Exception:
Installation of a skylight without a
				  curb shall be permitted on roofs with a minimum slope of 14 degrees (three
				  units vertical in 12 units horizontal) in Group R-3 occupancies. All unit
				  skylights installed in a roof with a pitch flatter than 14 degrees (0.25 rad)
				  shall be mounted at least 4 inches (102 mm) above the plane of the roof on a
				  curb constructed as required for the frame unless otherwise specified in the
				  manufacturer's installation instructions.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2405 - SLOPED GLAZING AND SKYLIGHTS › Subsection 2405.5 - Unit skylights

Current through Register 1525, July 5, 2024
Unit skylights shall be tested and labeled as complying with
				  AAMA/WDMA/CSA 101/ I.S.2/A440. The
label
shall state the name
				  of the manufacturer, the
approved
labeling agency, the product
				  designation and the performance grade rating as specified in AAMA/WDMA/CSA
				  101/I.S.2/A440. If the product manufacturer has chosen to have the performance
				  grade of the skylight rated separately for positive and negative design
				  pressure, then the
label
shall state both performance grade
				  ratings as specified in AAMA/WDMA/CSA 101/I.S.2/A440 and the skylight shall
				  comply with Section 2405.5.2. If the skylight is not rated separately for
				  positive and negative pressure, then the performance grade rating shown on the
label
shall be the performance grade rating determined in
				  accordance with AAMA/WDMA/CSA 101/I.S.2/A440 for both positive and negative
				  design pressure and the skylight shall conform to Section 2405.5.1.
2405.5.1
Unit skylights rated for the
				same performance grade for both positive and negative design pressure.
The design of unit skylights shall be based on the following equation:
F
g
							 <=
PG
(Equation 24-13)
where:
F
g = Maximum load on
				  the skylight determined from Equations 24-2 through 24-4 in Section 2404.2.
PG
= Performance grade rating of the
				  skylight.
2405.5.2
Unit
				skylights rated for separate performance grades for positive and negative
				design pressure.
The design of unit skylights rated for performance
				grade for both positive and negative design pressures shall be based on the
				following equations:
F
gi <=
PG
Pos
(Equation 24-14)
F
go <=
PG
Neg
(Equation 24-15)
where:
PG
Pos = Performance
				  grade rating of the skylight under positive design pressure;
PG
Neg = Performance
				  grade rating of the skylight under negative design pressure; and
F
gi and
F
go are determined in accordance with
				  the following:
For
W
o >=
D
,
where:
W
o = Outward wind
				  force, psf (kN/m2) as calculated in Section
				  1609.
D
= The dead weight of the glazing, psf
				  (kN/m2) as determined in Section 2404.2 for glass,
				  or by the weight of the plastic, psf (kN/m2) for
				  plastic glazing.
F
gi = Maximum load on
				  the skylight determined from Equations 24-3 and 24-4 in Section 2404.2.
F
go = Maximum load on
				  the skylight determined from Equation 24-2.
For
W
o <
D
,
where:
W
o = Is the outward
				  wind force, psf (kN/m2) as calculated in Section
				  1609.
D
= The dead weight of the glazing, psf
				  (kN/m2) as determined in Section 2404.2 for glass,
				  or by the weight of the plastic for plastic glazing.
F
gi = Maximum load on
				  the skylight determined from Equations 24-2 through 24-4 in Section 2404.2.
F
go =
				  0.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2406 - SAFETY GLAZING › Subsection 2406.1 - Human impact loads

Current through Register 1525, July 5, 2024
Individual glazed areas, including glass mirrors, in
				  hazardous locations as defined in Section 2406.4 shall comply with Sections
				  2406.1.1 through 2406.1.4.
2406.1.1
Impact test.
Except as provided in Sections 2406.1.2 through
				2406.1.4, all glazing shall pass the impact test requirements of Section
				2406.2.
2406.1.2
Plastic
				glazing.
Plastic glazing shall meet the weathering requirements of ANSI
				Z97.1.
2406.1.3
Glass
				block.
Glass-block walls shall comply with Section 2101.2.5.
2406.1.4
Louvered windows and
				jalousies.
Louvered windows and jalousies shall comply with Section
				2403.5.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2406 - SAFETY GLAZING › Subsection 2406.2 - Impact test

Current through Register 1525, July 5, 2024
Where required by other sections of this code, glazing shall
				  be tested in accordance with CPSC 16 CFR 1201. Glazing shall comply with the
				  test criteria for Category I or II as indicated in Table 2406.2(1).
Exception:
Glazing not in doors or enclosures
				  for hot tubs, whirlpools, saunas, steam rooms, bathtubs and showers shall be
				  permitted to be tested in accordance with ANSI Z97.1. Glazing shall comply with
				  the test criteria for Class A or B as indicated in Table 2406.2(2).
TABLE 2406.2(1) MINIMUM CATEGORY CLASSIFICATION OF
				  GLAZING USING CPSC 16 CFR 1201
EXPOSED SURFACE
AREA OF ONE SIDE
OF ONE LITE
GLAZING IN
STORM OR
COMBINATION
DOORS
(Category class)
GLAZING IN
DOORS
(Category class)
GLAZED PANELS REGULATED BY
ITEM 7 OF
SECTION 2406.4
(Category class)
GLAZED PANELS REGULATED BY
ITEM 6
							 OF
SECTION 2406.4
(Category
							 class)
DOORS AND
ENCLOSURES
REGULATED BY ITEM
5 OF SECTION 2406.4
(Category
							 class)
SLIDING GLASS
DOORS PATIO
							 TYPE
(Category class)
9 square feet or less
I
I
No requirement
I
II
II
More than 9 square feet
II
II
II
II
II
II
For SI: 1 square foot = 0.0929
							 m2.
TABLE 2406.2(2) MINIMUM CATEGORY CLASSIFICATION OF
				  GLAZING USING ANSI 97.1
EXPOSED SURFACE AREA OF
ONE SIDE OF
							 ONE LITE
GLAZED PANELS REGULATED
BY ITEM 7 OF
							 SECTION 2406.4
(Category class)
GLAZED PANELS REGULATED
BY ITEM 6 OF
							 SECTION 2406.4
(Category class)
DOORS AND ENCLOSURES REGULATED
BY
							 ITEM 5 OF SECTION 2406.4a
(Category
							 class)
9 square feet or less
No requirement
B
A
More than 9 square feet
A
A
A
For SI: 1 square foot = 0.0929
							 m2;
a. Use is only permitted by the
							 exception to Section 2406.2.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2406 - SAFETY GLAZING › Subsection 2406.3 - Identification of safety glazing

Current through Register 1525, July 5, 2024
Except as indicated in Section 2406.3.1, each pane of safety
				  glazing installed in hazardous locations shall be identified by a
				  manufacturer's designation specifying who applied the designation, the
				  manufacturer or installer and the safety glazing standard with which it
				  complies, as well as the information specified in Section 2403.1. The
				  designation shall be acid etched, sand blasted, ceramic fired, laser etched,
				  embossed or of a type that once applied, cannot be removed without being
				  destroyed. A label as defined in Section 202.1 and meeting the requirements of
				  this section shall be permitted in lieu of the manufacturer's
				  designation.
Exceptions:
1. For other than tempered glass,
				manufacturer's designations are not required, provided the
building
				official
approves the use of a certificate, affidavit or other
				evidence confirming compliance with this code.
2. Tempered spandrel glass is permitted to be
				identified by the manufacturer with a removable paper designation
2406.3.1
Multi-pane assemblies.
Multi-pane glazed assemblies having individual panes not exceeding 1 square
				foot (0.09 m2) in exposed areas shall have at least
				one pane in the assembly marked as indicated in Section 2406.3. Other panes in
				the assembly shall be marked "CPSC 16 CFR 1201 " or "ANSI Z97.1," as
				appropriate.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2406 - SAFETY GLAZING › Subsection 2406.4 - Hazardous locations

Current through Register 1525, July 5, 2024
The following shall be considered specific hazardous
				  locations requiring safety glazing materials:
1. Glazing in swinging doors except jalousies
				(see Section 2406.4.1).
2. Glazing
				in fixed and sliding panels of sliding door assemblies and panels in sliding
				and bifold closet door assemblies.
3. Glazing in storm doors.
4. Glazing in unframed swinging
				doors.
5. Glazing in doors and
				enclosures for hot tubs, whirlpools, saunas, steam rooms, bathtubs and showers.
				Glazing in any portion of a building wall enclosing these compartments where
				the bottom exposed edge of the glazing is less than 60 inches (1524 mm) above a
				standing surface.
6. Glazing in an
				individual fixed or operable panel adjacent to a door where the nearest exposed
				edge of the glazing is within a 24-inch (610 mm) arc of either vertical edge of
				the door in a closed position and where the bottom exposed edge of the glazing
				is less than 60 inches (1524 mm) above the walking surface.
Exceptions:
1. Panels where there is an intervening wall
				or other permanent barrier between the door and glazing.
2. Where access through the door is to a
				closet or storage area 3 feet (914 mm) or less in depth. Glazing in this
				application shall comply with Section 2406.4, Item 7.
3. Glazing in walls perpendicular to the
				plane of the door in a closed position, other than the wall towards which the
				door swings when opened, in one- and two-family
dwellings
or
				within
dwelling units
in Group R-2.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2406 - SAFETY GLAZING › Subsection 2406.5 - Fire department access panels

Current through Register 1525, July 5, 2024
Fire department glass access panels shall be of tempered
				  glass. For insulating glass units, all panes shall be tempered
				  glass.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2407 - GLASS IN HANDRAILS AND GUARDS › Subsection 2407.1 - Materials

Current through Register 1525, July 5, 2024
Glass used as a handrail assembly or a
guard
section shall be constructed of either single fully
				  tempered glass, laminated fully tempered glass or laminated heat- strengthened
				  glass. Glazing in railing in-fill panels shall be of an
approved
safety glazing material that conforms to the
				  provisions of Section 2406.1.1. For all glazing types, the minimum nominal
				  thickness shall be 1/4 inch
				  (6.4 mm). Fully tempered glass and laminated glass shall comply with Category
				  II of CPSC 16 CFR 1201 or Class A of ANSI Z97.1, listed in Chapter 35.
2407.1.1
Loads.
The panels and
				their support system shall be designed to withstand the loads specified in
				Section 1607.7. A safety factor of four shall be used.
2407.1.2
Support.
Each handrail
				or
guard
section shall be supported by a minimum of three
				glass balusters or shall be otherwise supported to remain in place should one
				baluster panel fail. Glass balusters shall not be installed without an attached
				handrail or
guard
.
Exception:
A top rail shall not be required
				  where the glass balusters are laminated glass with two or more glass plies of
				  equal thickness and the same glass type when
approved
by the
building official
. The panels shall be designed to withstand
				  the loads specified in Section 1607.7.
2407.1.3
Parking garages.
Glazing materials shall not be installed in handrails or
guards
in parking garages except for pedestrian areas not
				exposed to impact from vehicles.
2407.1.4
Glazing in wind-borne debris
				regions.
Glazing installed in in-fill panels or balusters in
wind-borne debris regions
shall comply with the following:
2407.1.4.1
Ballusters and in-fill
				panels.
Glass installed in exterior railing in-fill panels or balusters
				shall be laminated glass complying with Category II of CPSC 16 CFR 1201 or
				Class A of ANSI Z97.1.
2407.1.4.2
Glass supporting top rail.
When the top rail is supported by
				glass, the assembly shall be tested according to the impact requirements of
				Section 1609.1.2. The top rail shall remain in place after impact.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2408 - GLAZING IN ATHLETIC FACILITIES › Subsection 2408.1 - General

Current through Register 1525, July 5, 2024
Glazing in athletic facilities and similar uses subject to
				  impact loads, which forms whole or partial wall sections or which is used as a
				  door or part of a door, shall comply with this section.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2408 - GLAZING IN ATHLETIC FACILITIES › Subsection 2408.2 - Racquetball and squash courts

Current through Register 1525, July 5, 2024
2408.2.1
Testing.
Test methods
				and loads for individual glazed areas in racquetball and squash courts subject
				to impact loads shall conform to those of CPSC 16 CFR 1201 or ANSI Z97.1,
				listed in Chapter 35, with impacts being applied at a height of 59 inches (1499
				mm) above the playing surface to an actual or simulated glass wall installation
				with fixtures, fittings and methods of assembly identical to those used in
				practice.
Glass walls shall comply with the following
				  conditions:
1. A glass wall in a
				racquetball or squash court, or similar use subject to impact loads, shall
				remain intact following a test impact.
2. The deflection of such walls shall not be
				greater than 11/2 inches (38
				mm) at the point of impact for a drop height of 48 inches (1219 mm).
Glass doors shall comply with the following
				  conditions:
1. Glass doors shall
				remain intact following a test impact at the prescribed height in the center of
				the door.
2. The relative
				deflection between the edge of a glass door and the adjacent wall shall not
				exceed the thickness of the wall plus
				1/2 inch (12.7 mm) for a drop
				height of 48 inches (1219 mm).
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2408 - GLAZING IN ATHLETIC FACILITIES › Subsection 2408.3 - Gymnasiums and basketball courts

Current through Register 1525, July 5, 2024
Glazing in multipurpose gymnasiums, basketball courts and
				  similar athletic facilities subject to human impact loads shall comply with
				  Category II of CPSC 16 CFR 1201 or Class A of ANSI Z97.1, listed in Chapter
				  35.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2409 - GLASS IN ELEVATOR HOISTWAYS AND ELEVATOR CARS › Subsection 2409.1 - Glass in elevator hoistway enclosures

Current through Register 1525, July 5, 2024
Glass in elevator hoistway enclosures and hoistway doors
				  shall be laminated glass conforming to ANSI Z97.1 or CPSC 16 CFR.
2409.1.1
Fire-resistance-rated
				hoistways.
Glass installed in hoistways and hoistway doors where the
				hoistway is required to have a fire-resistance rating shall also comply with
				Section 715.
2409.1.2
Glass
				hoistway doors.
The glass in glass hoistway doors shall be not less than
				60 percent of the total visible door panel surface area as seen from the
				landing side.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2409 - GLASS IN ELEVATOR HOISTWAYS AND ELEVATOR CARS › Subsection 2409.2 - Glass visions panels

Current through Register 1525, July 5, 2024
Glass in vision panels in elevator hoistway doors shall be
				  permitted to be any transparent glazing material not less than
				  1/4 inches (6.4 mm) in
				  thickness conforming to Class A in accordance with ANSI Z97.1 or Category II in
				  accordance with CPSC 16 CFR. The area of any single vision panel shall not be
				  less than 24 square inches (15 484 mm2) and the
				  total area of one or more vision panels in any hoistway door shall be not more
				  than 85 square inches (54 839
				  mm2).
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 24 - Glass and Glazing › Section 2409 - GLASS IN ELEVATOR HOISTWAYS AND ELEVATOR CARS › Subsection 2409.3 - Glass in elevator cars

Current through Register 1525, July 5, 2024
2409.3.1
Glass types.
Glass in
				elevator car enclosures, glass elevator car doors and glass used for lining
				walls and ceilings of elevator cars shall be laminated glass conforming to
				Class A in accordance with ANSI Z97.1 or Category II in accordance with CPSC 16
				CFR.
Exception:
Tempered glass shall be permitted to
				  be used for lining walls and ceilings of elevator cars provided:
1. The glass is bonded to a nonpolymeric
				coating, sheeting or film backing having a physical integrity to hold the
				fragments when the glass breaks.
2.
				The glass is not subjected to further treatment such as sandblasting; etching;
				heat treatment or painting that could alter the original properties of the
				glass.
3. The glass is tested to
				the acceptance criteria for laminated glass as specified for Class A in
				accordance with ANSI Z97.l or Category II in accordance with CPSC 16
				CFR.
Code of Massachusetts Regulations › 780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS › Chapter 25 - Gypsum Board and Plaster › Section 2501 - GENERAL › Subsection 2501.1 - Scope

Current through Register 1525, July 5, 2024
2501.1.1
General.
Provisions of this chapter shall govern the materials, design,
				construction and quality of gypsum board, lath, gypsum plaster and cement
				plaster.
2501.1.2
Performance.
Lathing, plastering and gypsum board construction shall be
				done in the manner and with the materials specified in this chapter, and when
				required for fire protection, shall also comply with the provisions of Chapter
				7.
2501.1.3
Other
				materials.
Other
approved
wall or ceiling coverings
				shall be permitted to be installed in accordance with the recommendations of
				the manufacturer and the conditions of approval.