Project Manual - Volume 2 of 3.pdf - Hall Construction
Project Manual - Volume 2 of 3.pdf - Hall Construction
Project Manual - Volume 2 of 3.pdf - Hall Construction
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New Jersey Schools Development Authority<br />
Design-Build Performance Specifications<br />
New Caruso Elementary School<br />
Keansburg Public Schools<br />
b. Deflection limits: Ro<strong>of</strong>ing assemblies shall withstand wind and snow loads with<br />
vertical deflections no greater than 1/240 <strong>of</strong> the span.<br />
(1) Provide ro<strong>of</strong>ing assemblies that will sustain the anticipated live load if drainage<br />
is obstructed.<br />
c. Allow for thermal movements resulting from ambient and surface temperature<br />
changes. Base calculations on surface temperatures <strong>of</strong> materials due to both solar<br />
heat gain and nighttime-sky heat loss.<br />
(1) Minimum temperature change (range): 120 deg F (67 deg C), ambient on<br />
material surfaces.<br />
3. Provide minimum design slope <strong>of</strong> ¼” per foot (1:48). To the extent possible, slope ro<strong>of</strong><br />
structure to provide positive drainage under design loading conditions.<br />
E. Weather Resistance<br />
1. General performance: Installed ro<strong>of</strong>ing and base flashings shall withstand specified<br />
uplift pressures, thermally induced movement, and exposure to weather without failure<br />
due to defective manufacture, fabrication, installation, or other defects in construction.<br />
Ro<strong>of</strong>ing and base flashings shall remain watertight.<br />
a. Accelerated weathering: Ro<strong>of</strong>ing system shall withstand 2000 hours <strong>of</strong> exposure<br />
when tested according to ASTM G 152, ASTM G 154, or ASTM G 155.<br />
b. Impact resistance: Ro<strong>of</strong>ing system shall resist impact damage when tested according<br />
to ASTM D 3746 or ASTM D 4272.<br />
F. Durability<br />
1. Life span: In accordance with project requirements and the following:<br />
a. Manufacturer approval <strong>of</strong> design: Where ro<strong>of</strong> covering manufacturer recommends or<br />
requires certain design features for satisfactory performance or for warranty, comply<br />
with manufacturer's requirements.<br />
b. Manufacturer Warranty<br />
(1) Special weathertightness warranty for ro<strong>of</strong>ing system: Manufacturer's standard<br />
form in which manufacturer agrees to repair or replace ro<strong>of</strong> assemblies that fail<br />
to remain weathertight, including leaks, within specified warranty period.<br />
(a) Warranty Period: 20 years from date <strong>of</strong> Substantial Completion.<br />
PRODUCTS<br />
A. Basis <strong>of</strong> Design: SBS Modified Bitumen Multi-Ply Membrane System<br />
1. Provide a complete ro<strong>of</strong>ing assembly including but not limited to ro<strong>of</strong>ing, auxiliary<br />
ro<strong>of</strong>ing materials, substrate board, vapor retarder, insulation, walkway pavers, and all<br />
related accessories.<br />
2. Provide the following:<br />
a. Provide hot-applied SBS modified bitumen multi-ply membrane ro<strong>of</strong>ing system in<br />
compliance with SDA Materials and Systems Standards and the following<br />
requirements.<br />
June 27, 2013 Section B3010.50 Page 2 <strong>of</strong> 3<br />
Low Slope Ro<strong>of</strong>ing
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