Division 5.7 – Additions and alterations to existing nonresidential buildings

•July 1, 2012 : 2,000 sq ft additions, $500,000 alterations

•2013 Code: 1,000 sq ft additions, $200,000 alterations

•New Division 5.7“Additions and alterations to existing nonresidential buildings” (State definitions)

DIVISION 5.7 ADDITIONS AND ALTERATIONS TO EXISTING NONRESIDENTIAL BUILDINGS

This is a new division proposed to include standards for additions and alterations to existing nonresidential buildings. The reason for this proposal is to extend the benefits of reduction in greenhouse gas emissions, water use, and polluting finish products to a larger class of buildings than newly constructed buildings. It is modeled after similar provisions recently adopted locally by the City of Los Angeles for its considerable body of construction projects. It proposes and scopes some of the provisions from Divisions 5.3 through 5.5 for which cost benefit analysis was prepared last cycle for the mandatory code. The provisions are those readily applicable to additions and renovations.

SECTION 5.701 – ADMINISTRATION

CALGreen Section: 5.701.1 Scope. For those occupancies subject to section 103 of this code, the provisions of this division shall apply to the planning, design, operation, construction, use and occupancy of additions to buildings or structures unless otherwise indicated in this code. The provisions of this Division shall only apply to the portions of the building being added or altered within the scope of the permitted work. Compliance for additions and alterations is required on or after the dates shown in Table 5.701

TABLE 5.701

Notes:

1) The effective date of the 2013 California Building Standards Code is currently projected to be January 1, 2014.

2) This division does not apply to additions and alterations of qualified historical buildings.

Intent: Scope for additions and alterations to existing nonresidential buildings is limited to 2000 s.f. for additions and $500,000 for alterations, with that limit to drop in the next edition of the code. At the request of the Division of the State Architect, this section also includes an exception for qualified historic buildings regulated by that agency.

Existing Law or Regulation:

Building standards generally apply to additions and alterations for which a permit is applied. CALGreen has an exception, applying only to newly constructed buildings, so this division aligns CALGreen with other Parts of Title 24. There may be a more stringent local ordinance in place.

Compliance Method:

Determine if the addition or alteration triggers compliance (see Section 5.701 above and Section 7.502 Definitions) then comply with the specific provisions applicable.

Enforcement:

Plan Intake: The reviewer and/or plan checker should review the plans, specifications for the areas of additions and construction cost estimates for alterations for to confirm the need for compliance.

On-Site Enforcement: The inspector should review the permit set of plans and product data sheets for compliance with specific provisions, following.

 SECTION 5.702 – DEFINITIONS

CALGreen Section: 5.702.1 Definitions. Unless otherwise stated, the following words and terms shall, for the purposes of this code, have the meanings shown in this division. Refer also to definitions in Chapter 2 of this code.

ADDITION. An extension or increase in floor area of an existing building or structure.

ALTERATION OR ALTER. Any construction or renovation to an existing structure other than repair for the purpose of maintenance or addition.

ARB (CARB). TheCalifornia Air Resources Board.

Intent:

Section 5.702.1 Definitions.

CBSC is including definitions of addition and of alteration, which are exclusive of each other, taken from the building Code.

SECTION 5.703 GREEN BUILDING

CALGreen Section: 5.703.1 Scope. Building additions and alterations shall be designed to include the green building measures specified as mandatory in the application checklists for alterations or additions contained in this code.

5.703.2 Phased projects. For shell buildings and others constructed for future tenant improvements, only those code measures relevant to the building components and systems considered to be new construction (or newly constructed) shall apply.

5.703.2.1 Tenant improvements. The provisions of this code shall apply to the initial tenant or occupant improvements to a project and to subsequent tenant improvements subject to Section 5.701.1.

Intent:

Section 5.703.1 Scope.

CBSC is proposing that the mandatory provisions in this division be found in the checklists in the appendix in the code.

Section 5.703.2 Phased projects and 5.703.2.1 Tenant improvements. CBSC is proposing to clarify for the code user the application of the provisions of this division to shell buildings and tenant improvements.

 Shell Building Apply Cal Green >> If first tenant move apply Cal Green  >  Second T.I. >1000 sqft or >$200,000.00 work Cal Green Applies

CALGreen Section: 5.710.6.1 Storm water pollution prevention. Additions that disturb soil of less than one acre shall prevent the pollution of stormwater runoff from the construction activities through one or more of the following measures:

5.106.1.1 Local ordinance. Comply with a lawfully enacted stormwater management and/or erosion control ordinance.

5.106.1.2. Best management practices (BMP). Prevent the loss of soil through wind or water erosion by implementing an effective combination of erosion and sediment control and good housekeeping BMP.

1. Soil loss BMP that should be considered for implementation as appropriate for each project include, but are not limited to, the following:

a.    Scheduling construction activity

b.    Preservation of natural features, vegetation and soil

c.    Drainage swales or lined ditches to control stormwater flow

d.    Mulching or hydroseeding to stabilize disturbed soils

e.    Erosion control to protect slopes

f.     Protection of storm drain inlets (gravel bags or catch basin inserts)

g.    Perimeter sediment control (perimeter silt fence, fiber rolls)

h.    Sediment trap or sediment basin to retain sediment on site

i.     Stabilized construction exits

j.     Wind erosion control

k.    Other soil loss BMP acceptable to the enforcing agency

2. Good housekeeping BMP to manage construction equipment, materials, and wastes that should be considered for implementation as appropriate for each project include, but are not limited to, the following:

a.    Material handling and waste management

b.    Building materials stockpile management

c.    Management of washout areas (concrete, paints, stucco, etc.)

d.    Control of vehicle/equipment fueling to contractor’s staging area

e.    Vehicle and equipment cleaning performed off site

f.     Spill prevention and control

g.    Other housekeeping BMP acceptable to the enforcing agency

Intent:

The intent of this section means to prevent pollution from storm water runoff similar to that for new construction, where an addition disturbs less than one acre of soil. It recognizes that a local ordinance may govern, and it adds best management practices that can be used to prevent soil loss. This brings renovation projects in line with new construction projects disturbing similar amounts of soil to prevent soil and sediment from entering receiving waters.

Compliance and Enforcement:

See § 5.106.1 of this guide

CALGreen Section: 5.710.6.1 Storm water pollution prevention. Additions that disturb soil of less than one acre shall prevent the pollution of stormwater runoff from the construction activities through one or more of the following measures:   5.106.1.1 Local ordinance. Comply with a lawfully enacted stormwater management and/or erosion control ordinance.   5.106.1.2. Best management practices (BMP). Prevent the loss of soil through wind or water erosion by implementing an effective combination of erosion and sediment control and good housekeeping BMP.   1. Soil loss BMP that should be considered for implementation as appropriate for each project include, but are not limited to, the following: a.    Scheduling construction activity b.    Preservation of natural features, vegetation and soil c.    Drainage swales or lined ditches to control stormwater flow d.    Mulching or hydroseeding to stabilize disturbed soils e.    Erosion control to protect slopes f.     Protection of storm drain inlets (gravel bags or catch basin inserts) g.    Perimeter sediment control (perimeter silt fence, fiber rolls) h.    Sediment trap or sediment basin to retain sediment on site i.     Stabilized construction exits j.     Wind erosion control k.    Other soil loss BMP acceptable to the enforcing agency   2. Good housekeeping BMP to manage construction equipment, materials, and wastes that should be considered for implementation as appropriate for each project include, but are not limited to, the following: a.    Material handling and waste management b.    Building materials stockpile management c.    Management of washout areas (concrete, paints, stucco, etc.) d.    Control of vehicle/equipment fueling to contractor’s staging area e.    Vehicle and equipment cleaning performed off site f.     Spill prevention and control g.    Other housekeeping BMP acceptable to the enforcing agency

Intent: The intent of this section means to prevent pollution from storm water runoff similar to that for new construction, where an addition disturbs less than one acre of soil. It recognizes that a local ordinance may govern, and it adds best management practices that can be used to prevent soil loss. This brings renovation projects in line with new construction projects disturbing similar amounts of soil to prevent soil and sediment from entering receiving waters.     Compliance and Enforcement: See § 5.106.1 of this guide

CALGreen Section: 5.106.5.2 Designated parking. Provide designated parking for any combination of low-emitting, fuel efficient, and carpool/van pool vehicles as follows:

[Table 5.106.5.2 not shown – refer to Code]

5.106.5.2.1 Parking stall marking. Paint, in the paint used for stall striping, the following characters such that the lower edge of the last word aligns with the end of the stall striping and is visible beneath a parked vehicle:

CLEAN AIR/ VANPOOL/EV

Note:  Vehicles bearing Clean Air Vehicle stickers from expired HOV lane programs may be considered eligible for designated parking spaces.

Intent:

This code provision is to ensure that newly constructed projects provide designated parking

for clean air vehicles (low-emitting, fuel efficient, and carpool/van pool vehicles) which gives reserved parking to those who drive clean air vehicles. The intent is to promote the use of clean air vehicles in an attempt to conserve natural resources and reduce green house gas

emissions.

Clean Air Resource Board

Change for 2012: 2012 modifications, proposed by CARB, are to delete the definition for a PZEV vehicle, which does not qualify, and change the stall marking designation to read CLEAN AIR/VANPOOL/EV to reflect qualifying vehicles that shall be permitted to park there. Based on comment made at the Green Building Code Advisory Committee (GB CAC), CBSC has worked with ARB to shorten the stall marking language and clarify which vehicles are eligible for the parking.

Existing Law or Regulation:

There is NO current law or regulation for this code provision. However, there are some jurisdictions that have adopted ordinances.

Compliance Method:

Design Team: Construction documents (site plan) should reflect the location of the required

number of designated parking stalls with the marking “CLEAN AIR/VANPOOL/EV” toward the back of the stall, similar to an accessible symbol, so that the writing can be seen when a clean air vehicle is parked. Lettering should be at least 8 inches high. The parking stalls can be located anywhere on the site without preferential location.

Suggestion: The plans should reflect the total number of required vehicular spaces and refer to TABLE 5.106.5.2 to ensure that the correct number of designated parking stalls is being provided. Include all parking spaces in the calculation. As approved by the enforcing

agency, some compact stalls may also be marked for clean air vehicles.

Examples:

1.   55 total parking spaces: based on TABLE 5.106.5.2 – Provide 6 clean air/vanpool/ev spaces which fall within the range.

2.   240 total parking spaces: based on TABLE 5.106.5.2, calculate 240 x 8 percent =

19.2 – Provide 20 clean air/vanpool/ev spaces.  8%

Enforcement:

Plan Intake: The reviewer and/or plan checker should review the plans and confirm that the correct number and configuration of “CLEAN AIR/VANPOOL/EV” parking stalls are included on the drawings.

On-Site Enforcement: The inspector should review the permit set of plans to verify that the correct number of clear air vehicle parking stalls have been provided and marked.

CALGreen Section: 5.710.6.3 Designated parking. For projects that add 10 or more vehicular parking spaces, provide designated parking for any combination of low-emitting, fuel- efficient, and carpool/van pool vehicles as shown in Table 5.106.2.2 of Division 5.1 based on the number of additional spaces.

5.106.5.2.1 Parking stall marking. Paint, in the paint used for stall striping, the following characters such that the lower edge of the last word aligns with the end of the stall striping and is visible beneath a parked vehicle:

CLEAN AIR/ VANPOOL/EV

Note:  Vehicles bearing Clean Air Vehicle stickers from expired HOV lane programs may be considered eligible for designated parking spaces.

Intent:

Change for 2012: The intent of this section and subsections requires additional designated

parking stalls when 10 or more parking spaces are added as part of an addition or alteration project, thus encouraging additional building occupants to use alternate forms of transportation to standard automobiles.

Compliance and Enforcement: See § 5.106.5.2 of this guide