R2006-113 07-24-06 RESOLUTION NO. R2006-113
A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF
PEARLAND, TEXAS, AUTHORIZING THE CITY MANAGER OR HIS
DESIGNEE TO ENTER INTO A CONTRACT WITH RANDALL
PORTEFIELD ARCHITECTS TO ASSIST IN THE PROCUREMENT OF A
NEW ROOF FOR THE POLICE DEPARTMENT BUILDING USING THE
TEXAS MULTIPLE AWARD SCHEDULES ("TXMAS") BIDDING
PROCESS. •
BE IT RESOLVED BY THE CITY COUNCIL OF THE CITY OF PEARLAND,
TEXAS:
Section 1. That the City Manager or his designee enter into a contract with
Randal Portefield Architects to assist in the procurement of a new roof for the police
department building using the Texas Multiple Award Schedules ("TXMAS) bidding
process.
PASSED, APPROVED, AND ADOPTED this 24th day of July, A.D., 2006.
tee.
TOM REID
MAYOR
ATTEST:
Y NG , MC
SE ETARY
APPROVED AS TO FORM:
01/A..=
DARRIN M. COKER
CITY ATTORNEY
ROOF SURVEY
FOR
CITY OF PEARLAND POLICE DEPARTMENT
PEARLAND, TX
The contents of this report are considered to be
private data of Randall Porterfield Architects, and
are provided for the exclusive use of the City of
Pearland, Pearland, TX; therefore, the contents
herein may not be used or reproduced without
the specific written permission of Randall
Porterfield Architects.
July 7, 2006
SUBJECT: ROOF SURVEY FOR CITY OF PEARLAND POLICE DEPARTMENT
The enclosed report is based on our recent inspection of the subject facility. Its purpose is to
identify problem areas on the subject roof areas, and recommend solutions to these problems.
In addition, the potential effect each condition can have on the facility has been described.
The roof area survey included:
A. Interior and exterior examination of roof-related sheet metal, parapets, copings, flashings,
roof mat, deck system, and penetrations and/or projections through the roof system.
B. Cross-section analysis of core samples of the roof membrane.
C. Analysis of insulation and top side of deck system.
D. Moisture meter readings of insulation and/or membrane as required.
E. Bitumen chemical analysis.
F. Establishment of roof priorities if applicable.
G. Analysis of waterproofing requirements.
CITY OF PEARLAND POLICE DEPARTMENT, PEARLAND, TX PAGE 3
PART 2-RECOMMENDATIONS
2.01 Recommended Procedures: As the budget allows total replacement should be
considered; otherwise, if budget is limited, then the areas with leakage should be
reworked form the base sheet up until the budget will accommodate the replacement. All
of the piping should be placed on rollers to allow for expansion and contraction of the
system. At the time of reroofing the HVAC exposed ductwork should be coated to ensure
no moisture is allowed into the HVAC system and/or into the building below.
2.02 Design Criteria:
2.02.1 ASCE 7 Guidelines and Factory Mutual wind uplift guidelines for roofing field.
2.02.2 ANSI/SPRI Test RE-1, RE-2 and ES-1 for metal edge.
2.02.3 ANSI/SPRI Test RE-3 and ES-1 for coping.
2.02.4 Underwriters Laboratory Class A fire rating.
2.02.5 International Building Code guidelines.
2.02.6 International Energy Code.
2.02.7 Roof Assembly System:
a. Impervious to ponding water.
b. Elastomeric in nature to accommodate building movement and stresses
on all flashing surfaces.
c. Highly resistant to damage from foot traffic of maintenance personnel.
d. Designed for minimal low maintenance. Long-term maintenance burden
is known and can be reasonably budgeted.
e. Resistant to mechanical damage, particularly in the areas around the
air-handling units and vents.
f. Easily and securely flashed and made watertight if the addition of new
equipment requires penetration of the membrane and/or decking.
g. Unaffected by chemicals, oils and ultraviolet light.
h. Waterproofing integrity unaffected by moisture from any source.
i. Readily repairable if damaged.
j. Economical based on long-term performance.
•
CITY OF PEARLAND POLICE DEPARTMENT, PEARLAND, TX PAGE 4
k. Warranted by a reputable manufacturer.
•2.03 Required Design Chanqes:
2.03.1 Utilize factory finished galvanized metal for exposed metal to preclude the
possibility of corrosion and minimize long-term maintenance.
2.03.2 Utilize roofing materials which do not contain asbestos.
2.03.3 Remove any projections through the roof which are not being used.
2.03.4 Ensure that the proper support is provided for the rooftop air handler units.
2.03.5 Consider the feasibility of upgrading insulation "R" values to reduce power
usage.
2.03.6 Design perimeter edge detail to move water to the scuppers and away from
the edge metal and stripping plies.
CITY OF PEARLAND POLICE DEPARTMENT, PEARLAND, TX PAGE 5
PART 3 -BUDGETING ESTIMATES
The cost models are generated by a consideration of many issues: access, height, details and
penetrations, flashings, removal and disposal, design changes and historical records of other
quantifiable data.
TOTAL PROJECT BUDGETING ESTIMATES
Emergency Leak Repairs Budget Estimate $ 10,000
Reroofing Budget Estimate $ 140,000
Contingency $ 10,000
TOTAL PROJECT BUDGET ESTIMATE $ 160,000
If reroofing takes place immediately, then the emergency repair budget will not be
needed.
The cost data provided above is based upon current dollars, and should be an accurate
system comparison for budgeting the actual project cost. No allowance has been made
for possible inflation, deck replacement, or other contingencies.