AMENDROOF_GRANGER.doc

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

ARMY CORPS OF ENGINEERS

FORT WORTH DISTRICT

SPECIFICATIONS FOR POLYURETHANE ROOFING SYSTEM

GRANGER PROJECT OFFICE

3100 Granger Dam Road Granger, Texas 76530

PART 1. GENERAL

1.1 SCOPE OF WORK

The contractor shall remove 6200 SF of existing built up roof system complete with all roof flashing, coping and scuppers. The contractor shall install a new system complete with flashing , coping and scuppers to provide for a complete weather tight installation. All coping, flashing and scupper flashing shall be aluminum and attached in accordance with NRCA guidelines and requirements. Existing parapet walls range from 15” to 24” from the roof surface with 6 scuppers.

Contractor shall provide all labor, equipment, tools, supervision, and materials to remove the existing 4 Ply Built-Up Gravel roofing system which consists of approximately 6200 square feet of 4 Ply Built-Up roof surface and gravel from the building’s original metal roof system. Contractor shall be responsible for replacement of all roofs flashing and patching all penetrations that are found. All roof patches will be in compliance with the guidelines recommended by the National Roofing Contractors Association (NRCA). Prior to applying the new roofing surface, the contractor shall install approximately 6200 SF insulation board IAW with NRCA to provide for a smooth surface for applying the new system. The Contractor shall then proceed with the installation of a sprayed in place polyurethane foam insulation and Elastomeric (or equal) roof coating over the insulated roof decking. The new Polyurethane roofing system shall be installed to ensure proper flow to drains and scuppers, all flashing, coping and scuppers shall be tested to ensure a leak free installation.

SITE VISIT:

A formal site visit will be conducted on Friday July 24, 2009 at 11:00 am at the project site. The POC for this site visit is Mr. Randy Hammock cell number 254-760-4091. Note; No additional formal site visits will be conducted, therefore the bidders are encouraged to attend the site visit.

Bid due date remains unchanged.

(End of Summary of Changes)