780 CMR: 9 Edition Massachusetts State Building Code Codes-160120... · 780 CMR: 9thEdition Massachusetts State Building Code Presented to: BSA Codes Committee DATE: January 20, 2016

780 CMR: 9th Edition Massachusetts State Building Code

Presented to:

BSA Codes Committee

DATE: January 20, 2016

This course is registered with AIA CES

for continuing professional education.

Credit(s) earned on completion of this

course will be reported to AIA CES for

AIA members. Certificates of

Completion for both AIA members and

non-AIA members are available upon

request.

Questions related to specific materials, methods,

and services will be addressed at the conclusion

of this presentation.

Course Overview

• Review impactful changes to the base language

between the 2009 and 2015 I-Codes.

• 2015 International Building Code

• 2015 International Existing Building Code

• 2015 International Mechanical Code

• 2015 International Energy Conservation Code

• 2013 ASHRAE Standard 90.1

• Grace Period, no longer

• 2012 Jurisdictions

Chapter 1: Conflicting Provisions between Codes and

Standards

2015 IBC Section 102.4

• 102.4.1 Conflicts. Where conflicts occur

between provisions of this code and

referenced codes and standards, the

provisions of this code shall apply.

• 102.4.2 Provisions in Referenced Codes

and Standards. Where the extent of the

reference to a referenced code or

standard includes subject matter that is

within the scope of this code or the

International Codes listed in Section

101.4, the provisions of this code or the

International codes listed in Section 101.4,

as applicable, shall take precedence over

the provisions in the referenced code or

standard.

Chapter 1: Flood zones

2015 IBC Section 104.2.1

• 104.2.1 Determination of substantially improved or substantially damaged

existing buildings and structures in flood hazard areas. For applications for

reconstruction, rehabilitation, repair, alteration, addition or other improvement of

existing buildings or structures located in flood hazard areas, the building official

shall determine if the proposed work constitutes substantial improvement or

repair of substantial damage. Where the building official determines that the

proposed work constitutes substantial improvement or repair or substantial

damage and where required by this code, the building official shall require the

building to meet the requirements of Section 1612.

• Section 1612 references Flood Loads.

• Substantially Improved and Substantially Damaged are defined in Chapter 2 and

by Federal Regulations.

• A substantial improvement is work that equals or exceeds 50% of the market

value of the building.

Chapter 1: Change of Use or Occupancy


• No building or structure shall be used or

occupied, and no change in the existing

occupancy classification of a building or

structure or portion thereof shall be

made, until the building official has

issued a certificate of occupancy

therefore as provided herein.


• No building or structure shall be used or

occupied, and no change in the existing use or

occupancy classification of a building or

structure or portion thereof shall be made,

until the building official has issued a

certificate of occupancy therefore as provided

herein.

Chapter 4: Egress Travel Through an Atrium

2015 IBC Section 404.9 Exit Access

Travel Distance

� Egress not through an atrium shall

comply with Section 1017

� Egress through an atrium at the level of

discharge shall comply with Section

1017

� Egress through an atrium not at the

level of discharge shall not exceed 200

feet

� Maximum of 50% of interior exit

stairways are permitted to egress

through an atrium on the level of

discharge

Chapter 5: General Building Height and Area Limitations

2009 IBC

� 503.1 General. The building height and

area shall not exceed the limits

specified in Table 503…

2015 IBC

� 503.1 General. Unless otherwise specifically

modified in Chapter 4 and this chapter,

building height, number of stories and

building area shall not exceed the limits

specified in Sections 504 and 506…




Chapter 5: Incidental Uses-General Provisions

2009 IBC

� 508.2.5 Separation of incidental

accessory occupancies. The incidental

accessory occupancies listed in Table

508.2.5 shall be separated from the

remainder of the building or be equipped

with an automatic fire-extinguishing

system, or both, in accordance with Table

508.2.5

2015 IBC

� 509.1 General. Incidental uses located

within single occupancy or mixed

occupancy buildings shall comply with

the provisions of this section. Incidental

uses are ancillary functions associated

with a given occupancy that generally

pose a greater level of risk to that

occupancy and are limited to those uses

listed in Table 509.

Chapter 5: Incidental Uses-General Provisions

Chapter 5: Horizontal Building Separation

2009 IBC

� Section 509.2 Condition 2.

� The building below the horizontal

assembly is no more than one story

above grade plane.

2015 IBC

� Section 510.2

� Condition 2, which limits the height

of the building below the horizontal

assembly, is deleted.

Table 601, Footnote d: An approved automatic sprinkler system in accordance with Section

903.3.1.1 shall be allowed to be substituted for 1-hour fire-resistance rated construction,

provided such system is not otherwise required by other provisions of the code OR used for

an allowable area increase in accordance with Section 506.3 or an allowable height increase

in accordance with Section 504.2. The 1-hour substitution for the fire resistance of exterior

walls shall not be permitted.

Chapter 6 – One-Hour Substitution

Chapter 7: Structural Stability of Fire Walls

2009 IBC

� 706.2 Structural stability. Fire walls shall

have sufficient structural stability under

fire conditions to allow collapse of

construction on wither side without

collapse of the wall for the duration of

time indicated by the required fire-

resistance rating.

2015 IBC

� 706.2 Structural Stability. Fire walls shall

be designed and constructed to allow

collapse of the structure on either side

without collapse of the wall under fire

conditions. Fire walls designed and

constructed in accordance with NFPA 221

shall be deemed to comply with this

section.

Chapter 7: Vertical Openings

• Vertical openings in Section 708 of the 2009 IBC have been moved to Section 712.

• There was a significant reformatting of vertical openings between the 2009 and 2012 IBC. The

code now places an emphasis on the presence of vertical openings rather than on shaft

enclosures, recognizing that the use of shaft enclosures is just one of many acceptable

protective measures that can be utilized to address the hazards related to vertical openings.

Chapter 7: Membrane Penetrations

Section 713.4.1.2 in 2009 IBC

moved to Section 714.4.2 in 2015

IBC and two exceptions are

added:6. Noncombustible items that are cast

into concrete building elements and that

do not penetrate both top and bottom

surfaces of the element

7. The ceiling membrane of 1- and 2-hour

fire-resistance-rated horizontal

assemblies is permitted to be interrupted

with the double wood top plate of a wall

assembly that is sheathed with Type X

gypsum wallboard, provided that all

penetrating items through the double

top plates are protected in accordance

with Section 714.1.1 or 714.4.1.2 and the

ceiling membrane is tight to the top

plates.

Chapter 7: Ducts Transitioning between Shafts

Section 717.1.1 Ducts and Air

Transfer Openings. Ducts

transitioning horizontally between

shafts shall not require a shaft

enclosure provided that the duct

penetration into each associated

shaft is protected with dampers

comply with this section.

Ducts are now expressly allowed

to exit a shaft, transition

horizontally, and enter another

shaft without continuous shaft

construction.

Chapter 10: Reorganization

KEY

Yellow – Reorganization

Green – Addition

Blue – Deletion

Chapter 10: Sections 1006 and 1007

Provisions in Sections 1014, 1015 and 1021 in the 2009 IBC relocated to

Sections 1006 and 1007 in 2015 IBC. Provisions include:

� Numbers of exits and exit access doorways

� Exit and exit access doorway configuration

Chapter 10: Section 1007

1007.1.1 Measurement Point. The separation distance required in Section 1007.1.1 shall

be measured in accordance with the following:

1. The separation distance to exit or exit access doorways shall be measured to any point

along the width of the doorway.

2. The separation distance to exit access stairways shall be measured to the closest riser.

3. The separation distance to exit access ramps shall be measured to the start of the ramp

run.

Chapter 10: Stairs

Exit Access Stairway. An interior stairway that is not a required interior exit stairway.

Interior Exit Stairway. An exit component that serves to meet one or more means of

egress design requirements, such as required number of exits or exit access travel

distance, and provides for a protected path of egress travel to the exit discharge or

public way.

Chapter 10: Stairway Extension

2009 IBC

� 1022.2.1 Extension. interior exit

stairways and ramps are extended

to an exit discharge or a public way

by an exit passageway, the interior

exit stairway and ramp shall be

separated from the exit passageway

by a fire barrier constructed in

accordance with Section 707 or a

horizontal assembly constructed in

accordance with Section 711, or

both.

2015 IBC

� 1023.3.1 Exception 2. Separation

between an interior exit stairway or

ramp and the exit passageway

extension shall not be required where

there are no openings into the exit

passageway extension.

Chapter 14: Water-Resistive Barriers2015 IBC Section 1403.5

Vertical and lateral flame propagation.

Exterior walls on buildings of Type I, II, III

or IV construction that are greater than 40

feet (12,192 mm) in height above grade

plane and contain a combustible water-

resistive barrier shall be tested in

accordance with and comply with the

acceptance criteria of NFPA 285. For the

purposes of this section, fenestration

products and flashing of fenestration

products shall not be considered part of

the water-resistive barrier.

Exceptions:

Walls in which the water-resistive barrier is the

only combustible component and:

1. The exterior wall has a wall covering of brick,

concrete, stone, terra cotta, stucco or steel

with minimum thicknesses in accordance

with Table 1305.2.

2. The water-resistive barrier has a

• Peak heat release rate < 150 kW/m2

• Total heat release < 20 MJ/m2

• Effective heat of combustion < 18 MJ/kg

• Flame spread index < 25

• Smoke-developed index < 450

Chapter 30: Elevator Lobbies

2009 IBC Section 708.14.1

� Lobbies shall be provided where shaft

enclosure connects >3 stories

� Lobby enclosure shall separate elevator shaft

enclosure doors from each floor by fire

partitions

2015 IBC Section 3006

� Hoistway protection required where:

� No automatic sprinkler system

� Building contains Group I-1, I-2 or

I-3 occupancy

� High-rise building with hoistway

connecting >3 stories

� Hoistway protection includes:

� Enclosed elevator lobbies

� Additional door complying with

Section 716.5.3.1

� Hoistway pressurization

2009 IBC

� 3007.5 Standpipe Hose connection. A Class I

standpipe hose connection in accordance with

section 905 shall be provided in the exit enclosure

having direct access from the fire service access

elevator lobby.

2015 IBC

� 3007.10 Standpipe Hose Connection. A

Class I standpipe hose connection in

accordance with section 905 shall be

provided in the interior exit stairway and

ramp having direct access from the fire

service access elevator lobby.

� 3007.10.1 Access. The exit enclosure

containing the standpipe shall have access

to the floor without passing through the

fire service access elevator lobby

Chapter 30: Standpipe Access

International Energy Conservation Code

2015 International Energy Conservation Code (IECC)

Chapter 4 – Commercial Energy Efficiency

• Section 401: General

• Section 402: Building Envelope Requirements

• Section 403: Building Mechanical Envelope

• Section 404: Service Water Heating

• Section 405: Electric Power and Lighting Systems

• Section 406: Additional Efficiency Package Options

• Section 407: Total Building Performance

• Section 408: System Commissioning

Section C401: General

C401.2 Application

� Additional requirements of Section 406 “Additional Energy Package Options”

have been added to the prescriptive compliance method

� Total Building Performance compliance method requires the building energy

cost to be no more than 85% of the standard reference design building

Table C402.1.4 Opaque Thermal Envelope Assembly

� Walls above grade: U-value for Metal Buildings change from 0.069 to 0.052

� Heated Slabs: F-factor changes from 0.86 to from 0.65

� Unheated Slabs: F-factor changes from 0.73 to from 0.54

Section C402: Building Envelope Requirements

C402.4.1 Fenestration Maximum Area

� Maximum Vertical fenestration area is limited to 30% (reduction from

previous 40%) with increase to 40% when automatic daylight control is

provided)

C402.5 Air Leakage – Thermal envelope

� Continues Air Barrier throughout the building thermal envelope

requirement is now in the Code

� Fenestration air leakage criteria are established and testing standards

are identified

Table C403.2.3 Minimum Efficiency Requirements

� Increase in minimum efficiency requirements of the HVAC Equipment

C403.2.6.1 Demand Controlled Ventilation

� Occupancy of the spaces requiring DCV is reduced from 40 to 25 people per

1000 SF

C403.2.Energy Recovery Ventilation Systems

� No longer based on system capacity >5000 CFM and %% OA>70%. Now

depends on annual hours of operation (< or > than 8000 hours), climate

zone, system capacity and % of outside air. For ventilation systems operating

over 8000 hours per year (i.e. residential ventilation) in Massachusetts

energy recovery is required for ALL system capacities, with ANY %% of

outside air

C403.3.1&2 Economizer Control

� Two-position economizer control is no longer allowed

Section C403: Building Mechanical Systems

C405.1 Electric Power and Lighting Systems – General

� In dwelling units in commercial buildings minimum number of lighting

fixtures containing high efficiency lamps is increased from 50% to 75%

C405.2 Lighting controls

� The lighting control requirements are significantly expanded

� Lighting Controls Required include Occupancy Sensors, Time Control,

Daylight Responsive Controls, Accent Lighting Controls, Exterior Lighting

Controls.

C405.2.3 Daylight - Responsive Controls

� Except for healthcare and dwelling and sleeping units daylight responsive

controls are required for all spaces with more than 150W of general lighting

� Excludes Decorative Lighting, Sleeping Areas, Patient Areas in Health Care

Section C405: Electrical Power and Lighting Systems

C405.4 Interior Lighting Power Requirements

� A Space-by-space method of compliance is introduced in addition to the

Building Area Method of compliance.

� LPD allowances have been reduced (i.e. Office Building went from 0.9 to

0.82 w/sf)


ASHRAE 90.1 - 2013: Electrical Power and Lighting Systems

• Zones for exterior lighting are added.

• Garages required to have automatic shutoff and dimming


• Control requirements for exterior lighting.

C406.1 Requirements

� Prescriptive compliance method will in addition require the building to

comply with one of the following:

• Increase efficiency of HVAC equipment by 10% above minimum

requirements

• Reduce LPD to 90% of code allowance

• Enhanced digital lighting controls

• Generate on-site renewable energy - no less than 0.5 watts per SF of

conditioned area

• Dedicated Outdoor Air System (DOAS) with supply air temperature

reset control

� High Efficiency Service Water heating – no less than 60% of hot water

requirements to be satisfied by waste heat recovery or solar water

heating system

Section C406: Additional Efficiency Package Options

Total Building Performance compliance method requires the building energy cost to be no

more than 85% of the standard reference design building

Section C407: Total Building Performance


Example:


Example:

• Key ASHRAE 90.1 – 2013 Baseline Modeling Inputs

• ASHRAE 90.1 – 2013 Appendix G

• WWR 40%

• Glazing Type – Double Pane

• U-Glass = 0.42

• SHGC= 0.40

• Mechanical System – Floor by Floor Chilled Water VAV with Hot Water Heating

• LPD = 0.82 (Per ASHRAE 90.1 – 2013)

• Boiler 82% Efficient

• Chiller 0.585 kw/Ton Full Load and 0.380 IPLV

• Miscellaneous Load (Office Power) 1.06 W/GSF


Example:

LIGHTS

20%

EQUIP

22%

HEATING

24%

COOLING

13%

PUMPS

8%

FANS

10%

HOT WTR

3%

Baseline


Example:

• Proposed Building Modeling Iterations

• Increase WWR 60% with ASHRAE Baseline Glass

• Improve Glazing – Triple Pane (Viracon VE1-85)• U-winter = 0.14

• U-summer = 0.14

• SHGC= 0.44

• VT= 65%

• Condensing Boiler Plant – 95% Seasonal Efficiency

• Magnetic Bearing (Or Equivalent) Chiller 0.548 kw/Ton Full load and 0.314 IPLV

• Enthalpy Wheel Ventilation Air Energy Recovery 65% Efficiency

• Daylight Harvesting


Example:


Example: Energy Recovery Baseline

2007 2013





Section C407:

Total Building Performance

Example:

The IECC now requires commissioning of the mechanical and electrical

systems

Section C408: System Commissioning

International Mechanical Code

Chapter 2 International Mechanical Code

2009 IMC

ENVIRONMENTAL AIR. Air that is conveyed

to or from occupied areas through ducts

which are not part of the heating or air-

conditioning system, such as ventilation for

human usage, domestic kitchen range

exhaust, bathroom exhaust, and domestic

clothes dryer exhaust.

2015 IMC

ENVIRONMENTAL AIR. Air that is conveyed

to or from occupied areas through ducts

which are not part of the heating or air-

conditioning system, such as ventilation for

human usage, domestic kitchen range

exhaust, bathroom exhaust, domestic

clothes dryer exhaust, and parking garage

exhaust.

• Further clarifies that parking garage exhaust outlets can be 3 feet from a property line,

3 feet from operable windows and 10 feet from mechanical air intakes.

306.5 Equipment and Appliances on Roofs or Elevated Structures

� Permanent access is required to equipment and appliances on a roof or

elevated structure higher than 16 feet above grade

401.2 Ventilation Required

� Mechanical ventilation is required in the dwelling units if

infiltration is less than 5 ACH when tested in accordance with IECC.

Maximum envelope leakage allowed by IEEC is less than 0.4

CFM/SF which typically will results in less than 5 ACH. Mechanical

ventilation implicitly is required for all residential dwelling units.

401.4 Intake Opening Locations

� Minimum clearance between an air intake opening and any public way

is measured from the opening to the lot line, not center line of the

public way

2015 International Mechanical Code (IMC)

2015 International Mechanical Code (IMC)

• Example of exterior wall leakage rate 0.4

CFM/SF of exterior skin VS 5 AC/hr for

allowable natural ventilation of residential

units

404.1 Enclosed Parking garages ventilation

� CO detectors are required to be used in conjunction with NO2

detectors

505 Domestic Kitchen Exhaust

� Where ducted hoods are used they should be exhausted

independent of all other systems, the cleanout shall be provided at

the bottom of the shaft, no offsets of ductwork in the shafts

(similar to dryer exhaust)

2015 IMC - Continuation

� Rockwood Edwards, P.E.

� President, Cosentini Code

Robert Leber, P.E.

Senior Vice President

[email protected]

Rockwood Edwards, P.E.

Vice President

[email protected]

� Sr. Fire Protection Engineer, Cosentini Code

� [email protected]

Questions

This concludes The American Institute of Architects

Continuing Education Systems Course

Documents

780 CMR: 9 Edition Massachusetts State Building Code Codes-160120... · 780 CMR: 9thEdition Massachusetts State Building Code Presented to: BSA Codes Committee DATE: January 20, 2016