RFP No. 018-25/16 -?Roofing Improvements Project Addendum No. 2 Addendum No. 3

Location:	California
Posted:	Apr 21, 2026
Due:	Apr 30, 2026
Agency:	Glendale Unified School District
Type of Government:	State & Local
Category:	Y - Construction of Structures and Facilities Z - Maintenance, Repair or Alteration of Real Property
Publication URL:	To access bid details, please log in.

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ADDENDUM NO. 2

Date:

Project Name:

Bid No.:

April 21, 2026

Summer Roofing Project at Various Sites

018-25/26

TO: PROSPECTIVE BIDDERS

This Addendum supersedes, supplements and has precedence over all portions of the

bidding documents with which it differs. Acknowledgement of this Addendum is

required in the Bid Form in the space provided. Failure to acknowledge and respond to

any addenda issued by the District may, in the District’s sole discretion, render the

Bidder to be deemed non-responsive or incomplete.

I. REVISED SPECIFICATIONS

a. Specification 07550

i. Specification has been updated in Section 1.2-N-3 to show updated

scope of work for metal roof portables.

b. Specification 07550

i. Specification has been updated in Section 1.2-P to show updated

scope of work for site-specific AC duct sealing.

II. ADDED DETAIL MAPS

a. Detail maps have been posted for each site indicating alterations to

mechanical units and vents, as marked on job walk. All to be included in

Base Bid.

III. REVISED SITE MAPS

a. Benjamin Franklin Elementary- Roof sections added to scope (4

overhangs)

b. Glenoaks Avenue Elementary- Roof section added to scope (1 overhang)

END OF ADDENDUM NO. 2

ADDENDUM NO. 2 - 018-25/26

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SECTION 075500

MODIFIED BITUMINOUS MEMBRANE ROOFING

GLENDALE UNIFIED SCHOOL DISTRICT

SUMMER 2026 ROOFING PROJECTS

PART 1 GENERAL

1.1 SECTION INCLUDES

A. Cold Applied 2-Ply Thermoplastic Hybrid Roof System (KEE-Stone HP).

B. Accessories.

C. Edge Treatment and Roof Penetration Flashings.

1.2 SCOPE OF WORK

A. Provide all labor, equipment, and miscellaneous materials to install District purchased and

furnished roofing materials over the properly prepared substrate.

B. DISTRICT SUPPLIED MATERIAL

Note that this project includes the installation of owner-supplied material; the District has

acquired roofing material through the CMAS (California Multiple Award Schedules) program.

C. All products listed in 2.1, D will be furnished by the District. All products not listed in 2.1, D

are to be furnished by the Contractor. All products listed in 2.1, D will be manufactured by

The Garland Company and purchased by Glendale Unified School District. Any material or

accessories required for the installation of the roof system in excess of the district provided

material must be supplied by the Contractor. It is up to the Contractor to determine the

precise amount of material required for the completion of this project; and to provide excess

material, as required.

D. Contractor to comply with Roof Site Maps to determine scopes of work for each building.

Contractor responsible to determine deck type. Color-coded site map for reference only.

E. Contractor to provide fenced staging area with sand bags and no fabric screens.

F. Contractor to maintain clean jobsite with daily cleaning of nails and screws.

G. Contractor to inspect all conduit and condensate lines at start of job. Contractor to

immediately report any damaged, disconnected, or missing lines to The District. Contractor

to verify all condensate lines are in working order and must repair any broken or

disconnected lines prior to finishing job.

H. Contractor to maintain dedicated seam checker to inspect all newly welded seams. Seam

checker to maintain daily log of activity.

I. Contractor to install surface protection to prevent overspray of all sealants and adhesives.

J. Contractor is responsible for protecting and cleaning all interior space throughout duration of

project.

K. All vent covers to be removed and replaced with new.

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L. All drain bowls are to be replaced with new cast iron drain bowls and cast iron drain covers.

Drains must be lead flashed. Drains must be tested after installation to ensure no leaks.

M. Contractor to raise all mechanical units and increase curb height to 8” minimum above

installed roof system on all units marked on job walk, as deemed necessary by Garland.

Pricing to be included in base bid.

N. Roof Replacement Scope of Work

1. Prior to any work, the contractor is to test the drains. Contractor to ensure the drains,

downspouts, and leader heads are not clogged and are not leaking. Downspouts and

leader heads are to be un-clogged by contractor prior to installing roofing. Leaks due to

internal plumbing issues are to be documented with photos and the District and Garland

Representative are to be notified immediately, in writing.

2. Remove the existing roof system to the structural deck. District to mark any non-

functioning equipment. All marked equipment to be removed during demolition.

3. All portables with existing metal roofing are not to be removed. Leave metal roofing in

place and fill with rigid insulation between standing seams. Proceed with mechanically-

fastened Dens-Deck Prime and roof system installation.

4. Repair any damaged decking as required. Contractor to include 7% deck replacement in

the base bid. If the amount of deck replacement exceeds 7%, the contractor is to receive

a change order equal to the unit price for deck replacement per sq ft multiplied by the sq

ft in excess of the amount included in the base bid amount. If the amount of deck

replacement is less than 7%, the contractor is to provide a credit.

5. Mechanically fasten, or adhere with Insul-Lock HR, ½” DensDeck Prime coverboard per

approved wind-uplift pattern. Attachment method to be approved by Garland.

O. Roof Installation Scope of Work

1. Install one ply Flexbase E 80 set in GreenLock membrane adhesive applied at a

minimum 2.5 gal/100sf

a. If the slope exceeds 3:12, contractor to install Greenlock Flashing Adhesive at

a rate of 3 gal per sq.

2. Install one ply KEE-Stone HP set in KEE-Lock Spatter Spray foam adhesive applied per

product wind uplift criteria and datasheets.

3. Flashings:

a. Base Flashing Ply: Flexbase E 80.

b. Base Flashing Adhesive: Greenlock Plus Flashing Adhesive applied at 3 gal

per sq.

c. Cap Sheet Flashing Ply: KEE Stone HP NF Flashing

d. Cap Sheet Flashing Ply Adhesive: KEE Lock Flashing Adhesive applied at a

rate of 3 gal per sq.

e. Flashing Plies: All flashing plies to be terminated with termination bar set in

butyl tape. Fasten termination bar every 2” o.c. Caulk above the termination

bar and flashing plies.

f. Edge Metal: Replace all. Comply with manufacturer detail. All edge metal

shall be replaced with KEE Clad Metal fabricated from Garland KEE Clad Metal

Flat Stock. No gravel stop or high-rise at edge, unless approved by Garland. All

new drip edge to overlap existing stucco/fascia minimum 2”.

g. Counterflashing: All flashing plies to be terminated as high as possible under

the existing counterflashing metal with termination bar set in butyl tape. Caulk

above the termination bar and flashing plies. Fasten termination bar every 2”

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o.c. Install 22 gauge, galvanized skirt metal flashing to existing counterflashing

metal.

h. Parapet Walls: Install wood nailer as needed to create 8” minimum height.

Wrap the flashing plies up and over the wood nailer, extending down the

exterior wall 2”. Cap sheet flashing ply to be on walls in excess of 2.5 feet,

Flexbase E 80 set in Greenlock Flashing adhesive only to extend up the wall

2.5 feet and terminate with a termination bar. KEE Stone HP NF Flashing ply

to extend up the entire wall set in KEE Lock Flashing Adhesive.

i. Lead Flashings: Install new Garland KEE Boots. Clamp and caulk and install

an umbrella cover, clamped and caulked. No pitch pockets permitted. All “L”

metal to receive a wood block prior to the pipe boot install. Wood block to be

sealed, with pipe boot, clamped, caulked, and umbrella clamped and caulked.

j. Expansion Joint: Install all new expansion joints.

k. Drains: replace all drain bodies and install all new cast iron drain covers.

l. Scuppers: Install new metal lining per manufacturer details. Seal exterior

leader head.

4. Duct Work & Metal Pans: All seams / fasteners / joints and base plates to be sealed with

Garland Polyester and Cool-Sil coating at 2 gallons per 100SF. Coat all equipment, duct,

and metal pans with Cool-Sil at 2 gallons per 100SF.

5. Sheet Metal: All sheet metal to be ANSI SPRI ES-1 compliant. All metal to be

manufactured by The Garland Company.

a. Coping: Replace all existing coping caps, as well as install coping cap metal at all

parapet walls. Install wood nailer as required. Install 22 gauge, kynar coping –

fabricated from RMER SS Flat Stock. Coping to be fastened with metal cleats per

approved wind-uplift calculations. No exposed fasteners. District to determine color.

All coping to receive self-adhered underlayment.

b. Gutters: Replace all existing gutters, unless otherwise noted. Install 22 gauge, kynar

gutters – fabricated from RMER SS Flat Stock. All gutters to match existing shape or

to be 5”x5”x5” box gutters (district option).

c. All downspouts and leader heads are to receive metal mesh covers to prevent all

debris from entering. All leader heads and scuppers to be sealed on exterior.

d. Perimeter Edge: Remove and replace all edge metal. All edge metal shall be

replaced with KEE Clad Metal fabricated from Garland KEE Clad Metal Flat Stock.

No gravel stop or rise permitted at low edge of roofs.

e. Wood fascia replacement to be priced per linear foot, unless otherwise noted. All new

fascia to be primed and painted to match existing color.

f. Interior Walls: Install new 22 gauge, reglet skirt metal flashing. Flashing plies to be

set as high as possible. Terminate materials with termination bar set in butyl tape

fastened every 6” o.c.. Seal above the term bar and flashing plies with Tuff-Stuff MS

Sealant. Fasten skirt metal to existing counterflashing metal. Fabricate from RMER

SS Flat Stock. Seal all voids and penetrations with Tuff-Stuff MS Sealant.

6. Place all conduit on new rubber blocks, Garland WPG C-Port, no wood supports unless

approved by Garland. Condensate lines may be placed on pressure-treated wood blocks

with slip sheet if rubber blocks alter performance.

7. Remove and replace all vent covers. All vent covers to be white.

8. All fasteners to be fastened to the vertical side of the edge metal. No penetrations on

horizontal side of edge metal or coping.

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9. All drains to be sumped where possible. Copper drains are not permitted. Lead flash all

drains as per manufacturer detail.

10. Install Garland KEE Walkways around mechanical units, matching previous layout..

Walkways are not to be installed over field seams or in waterways.

11. Install new splash pans for all internal downspouts.

12. Replace metal pans that are rusted. Replace all damaged pans with new seamless

sheet metal.

13. Interior walls and parapets- Seal all voids, cracks and penetrations with Tuff-Stuff MS

Sealant.

14. White roofs only- all products used are to be white in color unless otherwise specified.

Any significant markings left on roof to be removed and/or coated white.

15. The contractor is responsible for ensuring positive drainage and no ponding conditions.

P. Site Specific Instructions (Included in Base Bid unless otherwise stated):

1. Abraham Lincoln Elementary

a. 4109-4110- Wrap AC ducting in Garland Duct Wrap per manufacturer’s

installation guidelines.

2. Glenoaks Ave. Elementary

a. Cafeteria/ Lunch Benches- Install crickets and lift mechanical units as needed

to eliminate ponding conditions.

b. Cafeteria/ Lunch Benches- Wrap AC ducting in Garland Duct Wrap per

manufacturer’s installation guidelines.

3. Benjamin Franklin Elementary

a. Bldg. A- Wrap AC ducting in Garland Duct Wrap per manufacturer’s installation

guidelines.

1.3 REFERENCES

A. ASTM D 312 - Standard Specification for Asphalt used in Roofing.

B. ASTM D 1970 - Specification for Sheet Materials, Self-Adhering Polymer Modified

Bituminous, Used as Steep Roofing Underlayment for Ice Dam Protection.

C. ASTM D 1079 Standard Terminology Relating to Roofing, Waterproofing and Bituminous

Materials.

D. ASTM D 2178 Standard Specification for Asphalt Glass Felt Used in Roofing and

Waterproofing.

E. ASTM D 4586 Standard Specification for Asphalt Roof Cement, Asbestos-Free.

F. ASTM D 4601 Standard Specification for Asphalt Coated Glass Fiber Base Sheet Used in

Roofing.

G. ASTM D 5147 Standard Test Method for Sampling and Testing Modified Bituminous Sheet

Materials.

H. ASTM D 6162 Standard Specification for Styrene Butadiene Styrene (SBS) Modified

Bituminous Sheet Materials Using a Combination of Polyester and Glass Fiber

Reinforcements.

I. ASTM D 6163 Standard Specification for Styrene Butadiene Styrene (SBS) Modified

Bituminous Sheet Materials Using Glass Fiber Reinforcements.

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This is the opportunity summary page. It provides an overview of this opportunity and a preview of the attached documentation.

RFP No. 018-25/16 -?Roofing Improvements Project Addendum No. 2 Addendum No. 3

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