ADDENDUM NO. TWO
Connally High School Roof Recover and HVAC
CONNALLY ISD
To: Plans and Specifications for:
Connally High School Roof Recover and HVAC
Connally ISD
Connally, Texas
April 20, 2015
Page 1 of 1
Attachments: 3
Claycomb Associates, Inc.
Dallas, Texas 75240
6600 LBJ Freeway, Suite 200
This addendum is generally separated into sections for convenience; however, all contractors, subcontractors, material
suppliers and other parties shall be responsible for the entire addenda. The failure to list an item or items in all affected
sections of the addenda does not relieve any party affected from performing as per instructions, provided the information is set
forth one time in any place in the addenda.
This document shall become part of the construction documents.
PROJECT MANUAL
00 10 10 – CONSTRUCTION MANAGER REQUIREMENTS
1. Refer to attached sketch showing start additional start dates for portions of work.
07 72 00 – ROOF ACCESSORIES
2. Add this section in its entirety.
PROJECT DRAWINGS
SHEET 5.1
1. Replace this sheet entirely.
a. Added portions of existing high walls to be covered per details.
b. Added note to General Notes:
i.
#11. ROOFING CONTRACTOR SHALL INCLUDE ROOF DRAIN SCREEN COVERS AT ALL EXISTING
ROOF DRAIN LOCATIONS.
ii.
#12. ROOFING CONTRACTOR SHALL ADJUST ROOF DRAIN AS REQUIRED FOR NEW ROOF AND
INSULATION.
END OF ADDENDUM
Contractor may start on May 16, 2015
Contractor may start on May 1, 2015
ROOF ACCESSORIES 07 72 00
PART 1.
GENERAL:
1.1 DESCRIPTION:
A. Work Included: Miscellaneous roof accessories including, but not limited to roof curbs and pipe supports.
1.2 SUBMITTALS:
A.
PART 2.
Submit Shop Drawings or Manufacturer's current production and installation literature before delivering to site.
PRODUCTS:
2.1 MATERIALS:
PART 3.
A.
Premanufactured Metal Roof Curb:
1. Model CRC-5 modified as manufactured by Custom Curb, Inc., Chattanooga, TN, 1-800-251-3001.
Fabricate curbs with 18 gauge galvanized steel with continuous mitered and welded corner seams and
integral base plate. Provide continuous treated 2x4 wood nailer secured to frame with two rows of
screws at 6" o.c. staggered, and 1-1/2" thick, 3 pound density fiberglas insulation. Curb to match slope
of roof and have level top surface with a minimum height of 8" above roof insulation. Size metal roof
curbs to receive all roof top mechanical equipment.
B.
Pipe Supports on Roof
1. Premanufactured Model 3-RAH-7 as manufactured by Miro. Spaced no greater than 8 feet on center.
Provide 24” x 24” roof protection pads under all pipe supports.
C.
Fall Protection Safety Rails
1. Safety Rail System by www.safetyrailssystems.com. Provide OSHA Compliant, freestanding and
portable Safety Rail System comprised of Bases with Rubber Pads, Rail Sections and Locking Pins
(secures Rail Section to Base). Refer to drawings for location and sizes.
EXECUTION:
3.1 SURFACE CONDITIONS:
A.
Inspection:
1. Inspect installed work and verify that all work is complete to point where this installation may commence.
2. Verify that roof accessories may be installed in accordance with original design, pertinent codes and
regulations, reference standards, Shop Drawings, and manufacturer's recommended installation
procedures.
B.
Discrepancies:
1. In event of discrepancy, notify Architect.
2. Do not proceed until discrepancies have been resolved.
3.2 WORKMANSHIP:
A.
B.
General: Form sheet metal items accurately and to dimensions and shapes required.
Weatherproofing: All installations shall be watertight and weathertight.
3.3 INSTALLATION:
A.
General: Each specified manufactured item shall be installed as detailed and as recommended by the
manufacturer in current installation instructions.
B.
Dissimilar Metals: Separate by painting areas in contact with heavy bituminous coating or other permanent
separation recommended by manufacturer.
END OF SECTION
CONNALLY ISD, HIGH SCHOOL ROOF RECOVER & HVAC
CLAYCOMB ASSOCITES, INC.
04/10/15
#21500
ROOF ACCESSORIES 07 72 00-1