Phase_I_Project_Documents.pdf

PROJECT SPECIFCATIONS

AG-9AC7-S-15-0108

SECTION 07400

METAL SHAKE ROOFING

PART 1 GENERAL

1.01 SCOPE

A. The work of this contract shall consist of removing the existing roof from two buildings, removing the central chimney from one building AS SHOWN ON THE DRAWINGS, installing 7/16” OSB sheathing over existing roof rafters for two buildings, as well as the installation of a completely weatherproof metal shake roof system on two buildings. The roof system shall be as herein specified. The work shall include but not be limited to installing: ice and water shield, metal roof shakes, metal eave trim, metal gable channels and trim, metal valley flashing, metal ridge caps, and flashing/sealing all roof penetrations and all other work necessary for a complete and weather tight roof system as specified here in and

AS SHOWN ON THE DRAWINGS.

1.02 GOVERNMENT FURNISHED

A. Water and electrical power is available at the site for the Contractor to use.

1.03 WARRANTIES

A. In addition to the manufacturer’s warranty the Contractor shall warrant the roof to be weatherproof for a period of one year after final acceptance. Written warranties shall be provided to the Contracting Officer prior to requesting final payment.

1.04 QUALIFICATIONS

A. The Contractor or subcontractor installing the roof shall have a C14 or C39 State

Roofing License and shall have been in the roofing business continually for the period covering the last five years. Proof of such shall be provided to the Contracting Officer upon request prior to award of the contract. The roof systems shall be installed under the direction of the Contractor possessing the above license.

PART 2 PRODUCTS

2.01 METAL ROOF

A. The new roofing material shall be galvanized steel shakes with a Kynar base coat with a

Thermobond textured baked-on finish, and a concealed nail-clip fastening system, as manufactured by Argo Building Products (Timber Creek Shake) (877)-344-2746 or

SCOTT VALLEY HISTORIC STRUCTURE ROOF REPLACEMENT PHASE I

approved equal. Color shall closely match the color of the existing roofing on building #4951002, #4951007, #4951008, #4951009, #4951018(see site map), Timber Creek Shake color “Maple”.

2.02 RIDGE CAPS

A. The ridge must be watertight before installing Ridge Caps. Ridge caps shall be manufactured by roof manufacturer with finish and color to match metal roof.

2.03 FLASHINGS

A. Flashings shall be manufactured by roof manufacturer with finish and color to match metal roof.

2.04 FASTENERS

A. Fasteners shall conform to the requirements of the IBC (2012) and/or manufacturer’s recommendations for the conditions at the project site (wind uplift and snow load). Color to match metal roof where exposed.

2.05 GABLE CHANNELS AND TRIM

A. Gable channels and trim to be manufactured by roof manufacturer with finish and color to match metal roof.

2.06 CLOSURES

A. Manufacturer’s standard formed neoprene closures. Finish and color to match metal roof if exposed.

2.07 PENETRATION FLASHINGS

A. Penetration flashings to be EPDM Flashing (Dextite).

2.08 EAVE TRIM

A. Eave starter strips and trim to be manufactured by roof manufacturer with finish and color to match metal roof.

2.09 SEALANT

A. Sealant shall be Mameco Vulcum #116 polyurethane or equal. Approved equal shall have similar polyurethane features. Color to match metal roof.

2.10 ICE AND WATER SHIELD

A. Ice and water shield shall be Palasades SA-HT underlayment or approved equal.

Equal must be self-adhering and shall be of equal heat resistance.

PART 3 EXECUTION

3.01 GENERAL

A. Measure and calculate how much new material will be required to complete the job.

Thoroughly clean roof removing all protruding nails and the like. Furnish & install 7/16” OSB over existing roof rafters. Rafters shall be anchored to framing with #9 SD screws at 6-inch on center spacing at the edges of the OSB and 24-inches on center spacing in the center. OSB shall be installed staggered and with H-clips required as required by governing building codes.

B. Install roof system in accordance with manufacturer’s installation standards for flashing and details and in accordance with the IBC. If conditions exist which are not covered by the standard details install in accordance with manufacturer’s recommendations after approval of the Contracting Officer.

3.02 CLEAN-UP

A. Prior to final acceptance the site shall be thoroughly cleaned of all materials and debris which may have resulted from the work and such materials and debris shall be removed from Government property and disposed of in accordance with all state and local regulations.

3.03 SAFETY

A. Safety for the workers and all those that may be affected by the work shall be the sole responsibility of the Contractor.

**END OF SECTION 07400**

SECTION 077123

GUTTERS AND DOWNSPOUTS

PART 1 – GENERAL

1.01 - SUMMARY

A. Provide labor, material, and equipment necessary for furnishing a complete installation of commercial gutter system, this includes, but is not limited to, furnishing and installing any fascia and soffit panels if existing conditions are not adequate for new gutter system installation. Extent and location of all metal gutters, downspouts and fascia trim is the responsibility of the contractor and subject to approval of the engineer.

B. The work shall include, but is not necessarily limited to:

• Metal gutters and hangers

• Metal downspouts and anchoring devices

• Metal fascia and soffit panel trims

• All required accessories to complete the work

1.02 - QUALITY ASSURANCE

A. American Architectural Manufacturers Association (AAMA) Specification

1405.1 “Specifications for Aluminum Gutters and Downspouts”.

B. American Architectural Manufacturers Association (AAMA) Specification

1402.86 “Specifications for Aluminum Siding, Soffit and Fascia”.

C. B. Obtain all components and related accessories from one single source manufacturer.

D. Follow manufacturer’s printed instructions for installing commercial gutter system. Follow primary roofing manufacturer’s printed instructions for installing associated roof material for flashing gutter system to roof.

1.03 - SUBMITTALS

A. Product Data: Submit manufacturer’s product literature and installation recommendations for each product.

B. Color Options: Submit color options to the engineer for approval.

1.04 DELIVERY, STORAGE & HANDLING

A. All products delivered shall be stored in a clean dry location prior to installation.

B. Products furnished with strippable protective masking shall not be exposed to direct sunlight for more than 30 minutes without removing masking.

C. Do not install finished materials with scars or abrasions.

1.05 PROJECT CONDITIONS

A. Coordinate work of this Section with adjoining work for proper sequencing to ensure protection from inclement weather and to protect materials and their finish against damage.

B. Do not install commercial gutter system during inclement weather. When installing in cold climates, warm adhesives, caulks, and primers to at least 50 degrees Fahrenheit prior to application.

1.06 – WARRANTY

A. Gutters, downspouts and metal fascia trim to have a minimum 20-year limited warranty provided by manufacturer.

B. In addition to the manufacturer’s warranty, the installer shall warranty the gutters system and it’s installation for no less than 3 years.

PART 2 - PRODUCTS

2.01 - MATERIALS

A. Gutters (“OG” shape or K-style) shall be made of 3005-H25 Aluminum Sheet (minimum tensile strength 26,000 psi, minimum yield strength 23,000 psi) or equivalent.

B. Gutter gauge to be .032" (.813) gauge nominal with either 2”x3” or 4"x5" downspouts, dependent upon the dimension of gutter to be used.

C. Roof aprons to be .027" (.686) gauge.

D. End caps to be .024" (.610) gauge.

E. Inside and outside miters to be .032" (.813) gauge.

F. Sealant material - manufacturer’s recommended gutter sealant.

G. Expansion joint to be aluminum, lined with neoprene.

H. Downspout clip .014" (.356) gauge.

I. Gutter hangers to be .082" gauge.

J. Prior to painting, the metal shall receive special cleaning process to assure maximum paint adhesion. The inside of all gutters and downspouts shall be coated with a special gold-colored corrosion-inhibiting finish. The exterior shall be a two-coat acrylic applied in a two-phase operation, which includes a corrosion-inhibiting primer and a baked-on high-performance acrylic top coat.

K. All accessories used shall be accessories designed for use with the gutters and have the same finish.

L. Soffit and fascia shall be made of aluminum sheet (minimum tensile strength 29,000 psi, minimum yield strength 26,000 psi) or equivalent.

M. Soffit to be .019" gauge. Each panel shall be perforated with a series of 1/16-diameter holes on 5/32" staggered centers, making up uniformly appearing pattern 5" wide with 15

sq. inches of net free area per lineal foot.

N. Fascia to be .024" (.610) gauge.

O. All wall receiver channels to be .019" (.483) gauge.

P. All drip edges to be .024" (.610) gauge.

Q. Prior to painting the metal shall receive a special cleaning process to assure maximum paint adhesion. The finish shall be a two-coat acrylic applied in a two-phase operation, which includes corrosion-inhibiting primer and a baked-on, high-performance acrylic topcoat.

R. All accessories used shall be designed for use with soffit and fascia having the same finish.

S. Color to be approved by the engineer prior to installation

PART 3 - EXECUTION

3.01 - INSTALLATION, WORKMANSHIP

A. Seamless Gutters and Downspouts

1. Before starting work, verify governing dimensions at building; examine, clean and repair, if necessary, any adjoining work on which this work is in any way dependent for its proper installation. If necessary, furnish and install, at no additional cost to the government, any and all wood plates, fascia or soffit board not currently present to install the seamless gutter system.

2. Aluminum Gutters shall be seamless and installed by using manufacturer’s standard hangers so that movement is not restricted.

a) Spikes and ferrules or brackets attached to the outside periphery of the gutter shall not be used.

3. All gutter hangers shall be installed by using two 1-1/4" screw-shank nails and shall be fastened into solid lumber or as recommended by the manufacturer.

4. Expansion joints provided wherever necessary to allow for proper expansion and contraction - 1/8" per 10' or as recommended by the manufacturer. Expansion joints will be used on all sides of a hip roof (if applicable) and on runs of more than 40 feet in length.

5. Where applicable, furnish and install gutter & debris guards in accordance with section 077123.13

6. Upon completion, the contractor shall clean all aluminum work.

7. Dissimilar materials

a) Care must be exercised in placing aluminum in contact with metals or materials not compatible with aluminum.

b) Dissimilar materials shall be painted or otherwise protected when they are in contact with aluminum or when drainage from them passes over aluminum.

B. Soffits and Fascias

1. Before starting work, verify governing dimensions at building; examine, clean and repair, if necessary, any adjoining work on which this work is in any way dependent for its proper installation. If necessary, furnish and install, at no additional cost to the government, any and all wood plates, fascia or soffit board not currently present to install the seamless gutter system.

2. Install in accordance with manufacturer’s installation guide, latest edition.

3. Special details shown on the drawings shall be included as part of installation.

4. Upon completion, the contractor shall clean all aluminum work.

5. Dissimilar materials:

a) Care must be exercised in placing aluminum in contact with metals or materials not compatible with aluminum.

b) Dissimilar materials shall be painted or otherwise protected when they are in contact with aluminum or when drainage from them passes over aluminum.

**END OF SECTION 07 71 23**

SECTION 077123.13

GUTTER AND DEBRIS GUARDS

1. GENERAL

A. Gutter Debris Guards shall be included on all gutters for sloped roofs that are located under a canopy of trees or will be susceptible to leaf collection. Coordinate with engineer.

B. If conductor drains are utilized, they shall have guards to prevent pigeons from nesting.

2. PRODUCTS

A. Screws shall be stainless steel or aluminum to attach to the clip.

B. Colors shall be coordinated with Project Manager.

C. Debris guard material shall be compatible with gutter material to avoid galvanic corrosion.

**END OF SECTION 077123.13**

Existing Metal Shake Roof

Proposed Metal Shake Roof kstagg Rectangle kstagg Rectangle kstagg Rectangle kstagg Rectangle kstagg Rectangle kstagg Rectangle kstagg Rectangle kstagg Rectangle kstagg Rectangle kstagg Rectangle kstagg Rectangle kstagg Rectangle

NOT TO SCALE

EXISTING FRONT ELEVATION

A

NOT TO SCALE

NEW FRONT ELEVATION

B

PHASE 1 - PLANS ROOF REPLACEMENT