24C-013 NSC_780 CMR NARRATIVE780 CMR NARRATIVE
In Compliance with Chapter 34
Northampton Survival Center 265 Prospect Street
Northampton, MA 01060
Owner
City of Northampton
Architect
Nelligan White Architects PLLC
20 West 20th Street
New York, NY 10011
(212) 675-0500
Engineer
Mechanical
Lindgren & Sharples, P.C.
435 Cottage Street
Springfield, MA 01104-4005
Tel: (413) 732-4336.
Structural
Ryan Hellwig, PE
28 Aldrich Street
Northampton, MA 01060
Tel: (413) 584-4594
August 18, 2010
Project Description:
The Northampton Survival Center, 265 Prospect Street, Northampton, MA.,
currently occupies a portion of a combined facility at the above address.
The remaining spaces in the current combined facility are occupied by the
Department of Public Works. The entire facility is comprised of three
connected buildings, two wood frame buildings to the north and south ends
of a long center building that is made of combined wood frame and
masonry construction. Use and occupancy of the building as The
Northampton Survival Center will continue and expand to include all of the
central masonry and wood frame building and will replace the southern wood frame addition with a new, larger wood frame addition. These
portions of the facility will be leased to The Northampton Survival Center by
the City of Northampton. The use and occupancy of the Northern most
building of the current combined facility is to be determined and, with the
exception of adding a sprinkler system and relocating the south façade
entry door, no work will be done in this building as a part of this project. The
proposed project comprises a total renovation of the existing central part of
the existing facility, removal of the southern wood frame portion, and
replacing it with a new addition that will house the administrative offices
and spaces for The Survival Center. The existing building to be renovated
contains no basement, and entry and exit, to and from the building, is at
grade. The site of the building remains essentially the same with
improvements including planting, new fencing on the west front perimeter
of the site, pedestrian walks and cross walks.
There are no existing drawings or written building history for the current
facility that we were able to locate. We have commissioned and completed
an overall site survey and borings in the area of the new addition to test the
soil quality in preparation for the renovation. The survey data is reflected on the site plan drawing that is a part of the construction document set and
the survey of the entire site will be included in the Building Department
Submission. The renovation will include demolition of the existing wood
frame addition and replacement with a slightly larger wood frame addition
with an entrance at grade and no basement. This section will be used for
administration of the facility, interviewing of clients, workshops and
instruction for clients, and general business. The renovation will also
include a total renovation of the middle portion of the existing facility,
altering it from its current combined occupancy of The Northampton
Survival Center and DPW equipment garage to the single occupancy of The Northampton Survival Center. This section will include capacity for
public distribution of food and the storage of food. Food will not be
prepared for public consumption at this facility.
The entire facility, including the northern most ajoining building, will be
provided with an automatic sprinkler system as required. (See mechanical
drawings and Chapter 34 Narrative by Lindgren and Sharples, PC,
mehanical engineers for the project.)
All entrances and exits are at grade and comply with accessibility standards and laws.
780 CMR – Massachusetts State Building Code
The following is a summary of Code related items as regulated by 780
CMR including Chapter 34 for alterations to an existing building:
Zoning:
Map/Block Lots for all lots in project: 24C-0130001
Zoning District: URB (100)
Construction Classification:
The existing construction is Type VB and this project intends to match
or improve this classification.
Automatic Sprinkler System:
The entire building group, including the new renovation and addition,
and the northern unused portion of the building. will be provided with
an automatic sprinkler system as part of this project.
Section Item Required Proposed
304.1 Use Group B & M & S Existing to
remain.
503.1
Table
503
Height and Area Limitations
for Construction
Classification 5B
1 Story,
9000 sq. ft
total
renovated
tenancy, 1 story,
16 ft. high, 5000
sq. ft.
602.1
Table
602
Protection of Exterior Walls
≥10ft
0 hour Automatic
Sprinkler System
602.2
Table
601
Protection of Structural
Members
0 hour Automatic
Sprinkler System
602.2
Table
601
Roof/Clg, Flr/Clg
Assemblies
0 hour Automatic
Sprinkler System
704.8 Exterior Wall Allowable
Area of Openings –
Unprotected (Also see
Mech Eng Chapter 34)
>5ft - 10ft =
10%
> than 25 – 30ft
= 70%
less than 10%
less than 30%
803.5
Table
803.5
Interior finish requirements
Corridors to exits
Rooms or spaces
Class B
Class C
Class B
Class C
804.5.1 Interior Floor Finish - Use
Group B
Class II or
better
Class II or better
903.2.2
C 148
5.26G
Fire Suppression System
Requirement
Required for
bldgs greater
than 7500 sq. ft.
Provided—see
above note
906.2 Portable Fire Extinguisher Required Will comply
1003.2
1208.2
Use Group Ceiling Heights
in exit access and
occupiable rooms
>7’-6” Ceiling height 8’-
0” & greater
provided
1004.1 Maximum Floor Area for
Group M
Areas 60 gross
87.5 provided
Group S
Group B
Storage 300
gross
100 gross
350 provided
200 provided
1013.3.1 Path of Egress Travel
Distance
100ft 80ft max.
1014.1 Two Means of Egress are
Provided
All egress path
of travel are less
than 100 ft.
1203.1 Ventilation Requirement—
Please see Mechanical
Engineer’s Chapter 34
Analysis accompanying this
submission
Mechanical or
natural
Mechanical
CHAPTER 34:
Alteration, Addition, and
Change of Use of Existing
Buildings
3400.3 Applicability
New Addition
Addition is not a
separate
building
Will continue
Use Group B &
M
Complies with
requirements of
780 CMR 34
3400.4 Egress is new and
conforming
3400.5 Hazardous Means of
Egress
None
3400.6 Unsafe Lighting/Ventilation Please see
mechanical
engineers Chap
34 report for
ventilation and
lighting
compliance
Will comply
3402.1.1 Existing Building
Investigation and
Evaluation for Building
Permit Application
Will comply
3402.1.2 Investigation and
Evaluation Submittal
This report will
be submitted for
consideration
3404.3 New Building Systems will
conform to 780 CMR for
new construction
New work and
modifications will
comply with 780
CMR
3404.4 Alterations and Repairs New work and
modifications will
comply.
3404.5 Number Means of Egress in
compliance with 1014.0
Will Comply
3404.6 Exit Capacity to comply
with 1005.1
New work and
modifications will
comply.
3404.7 Exit Sign and Lighting to
comply with 1023. See
Mechanical Engineer’s
Chap 34 report
New work and
modifications will
comply.
3404.9 Height and Area Limitations
to comply with 504, 505,
506
New work and
modifications will
comply.
3404.11 Fire Protection Systems to
comply with 780 CMR
3404.3 and 780 CMR
3404.12 as applicable
New work and
modifications will
comply.
3404.18 Accessibility for Persons
with Disability
All new work and
modifications will
comply.
3404.19 Energy Conservation
Measures Please see
Mechanical Engineer’s
Chap 34 Report
New work will
maintain or
increase energy
conservation
End of Review