Section Three
A s s e s s m e n t s
*
PLUMBING & ELECTRICAL:
New Hose Bibbs and
Power Outlets on roof
ROOFING: New Roofing
and Roof Structure Sloped 4%
*
WALLS: New Parapet Walls
*
MECHANICAL: New return
air duct located on the North
Side of the room
*.
* MECHANICAL: New high-
efficiency Mechanical Package
Units mounted on raised curbs,
with sheet metal skirting added
for future re-roofing projects.
* ENERGY: New high-efficiency ridig insulation.
R-38 or better at roof & R-19 at walls.
* PLUMBING: New Roof Drains and
Overflow Drains
* MECHANICAL: New supply air duct,
*
REMOD
WINDOWS: New Windows
located on the South Side of the room
LED
New LED lights
REMOD
OUTLETS
6"
Relocate electrical power outlets to REMOD INTERIORS
the classroom activity zones and
Remodel Classroom Interiors
teacher desk,
Floor Finishes (Carpet and Walk-Off Mat)
REMOD
P.A
Wall Finishes (New Tackboard, all walls)
Add Clasroom PA Speakers at
Cabinets (Teaching Wall Cabinets 22'x9')
Teacher Desk Ceiling.
Cabinet Counters (Counters with Accessible Sink)
Add Exterior Horns at end of Bldgs
REMOD
New walkway canopy with LED lights.
Occurs at Buildings B, C, G, H & J
WALKS
Remove and replace concrete walks.
Remove Roots under walks
Add Root Barriers along face of walk.
Bldg K = 1,800 SF
Bldg G, H & J = 1,100 SF/Ea.
DATA
Technology Cable Upgrades
Each Classroom has 10 to 12 Data Drops.
Remove and replace 6 data drops at the Teacher Stations
Phone (1)
Computer (1)
Printer (1)
Document Camera (1)
AV System, Projector (2)
BUILDING SECTION - DETAIL A
CANOPY
8' - 0"
8' - 0"
In the 1940’s when the school was built, energy efficiency was not a concern, the exposed and non-insulated ducts
absorb the heat of the summer and the coldness of the winter, and all this requires additional cooling and heating
to keep the rooms comfortable. The lack of any insulation requires the HVAC units to keep up with the demand and
the conditioned space quickly lose the temperature set points. These buildings are “energy hogs.”
14"
Upper Storage Cabinets
14"
/ V System,
Short Throw Projector
UpperAStorage
Cabinets
4' - 0"
8' - 0"
8' - 0"
4' - 0"
Adjustable
Book Shelves
Sliding
Marker Boards
20" Deep.
Adjustable Book Shelves
Base Cabinets
20" Deep.
30" Deep
Base Cabinets
30" Deep
34"
4' - 0"
A / V System, Short Throw Projector
Sliding Marker Boards
48"
4' - 0"
34"
8' - 0"
The solution is to build a new roof structure over the existing roof structure, also called a “Roof Cap”; refer to Detail
A in the Vision Plan. The new roof would have a constant slope of ½” per foot, and a series of roof drains would be
placed along the back side of a parapet wall. The new vertical walls would be faced with a continuous insulation
and filled with a high-performance insulation, and a continuous layer of high performance insulation would be
placed on the roof structure. New dual glazed low-e windows would replace the single pane clerestory windows.
Package HVAC equipment would be placed on roof curbs and the ducts would drop down into the structure
and placed in the building. A variable refrigerant flow (VRF) system could also be considered, and the location
and access to the refrigerant lines should carefully considered, if implemented. Tree maintenance and pruning is
required to keep the leaves from collecting on the roof surface.
ROOF
48"
The existing building envelope for the Classroom buildings is modest. To keep the scale of the buildings low, the
roofs were designed as an inverted gable, meaning the roof slopes were directed to the middle of the structure in
a V-Shape. This allowed the HVAC equipment and the roof mounted ducts to be partially hidden from view. This
building envelope desig n is not suitable for shedding rain water off the roof, since the equipment and the duct
supports impede efficient drainage. In most cases the rain water needs to pond for it to shed off and be drained. A
roof drain is located at the ends of the roofs. The ponding water, along with the high number of organics left from
the tree leaves, has accelerated the deterioration of the roofs. At some point the maintenance issue will turn into
a large repair problem. A solution needs to be implemented before it reaches the stage of a major repair, which
could render the classroom spaces unusable.
*
7' - 11 3/16"
Selma Herndon Elementary School - Roof Cap Detail
8' - 0"
F a c i l i t y
Livingston Union School District | Facilities Master Plan
3' - 0"
3' - 0"
3' - 2"
3' - 2"
TEACHING WALL CABINETS - DETAIL B
3' - 2"
3' - 2"
3' - 4"
3' - 4"22' - 0"3' - 2"
3' - 2"
3' - 2"
3' - 2"
3' - 0"
2' - 6"
3' - 0"
2' - 6"
22' - 0"
TEACHING WALL CABINETS - DETAIL B
The roof profile with HVAC ducts
and equipment supports trap tree
leaves and other debris. The lack of
positive drainage and the organics
are deteriorating the roof and structure.
MECHANICAL: Exposed metal ducts,
non-insulated and loosing energy.
The Duct Stands are secured with screws
penetrating to roofing, creating leak
opportunities.
Exposed wood and
wood connections with
Decay and Dry-Rot
ENERGY: Limited themal envelope (insulation)
Single pane windows
PLUMBING: Roof Drains are filled with
debris and leaves from trees.
Existing T-Bar Ceilings
Existing walkway canopy.
Remove and replace.
Presure treated 4x4 wood
equipment supports, supported
on roof curbs.
Existing Roof
33