Specifications.pdf

USDA FOREST SERVICE, R-1

FENN, SELWAY, & GATEWAY ROOFING

FENN ROOFING 00050

SECTION 00050 – FENN ADMIN BUILDING, SELWAY, & GATEWAY ROOFING

1.1 GENERAL

This item shall consist of installing a new roof on the Fenn Administration Office on the Nez Perce-Clearwater National Forests, the Selway Falls Cabin, and potentially the Wilderness Gateway Pavilion. Work includes but is not limited to removing, replacing roofing, repairing sub roof assemblies, installing weather proofing and water barriers. As a significant historical resource(s) it is imperative that maintenance activities DO NOT ADVERSELY AFFECT the historical integrity of the first two structures. Accordingly, all materials or replacement materials used for maintenance must be “in kind” (e.g. use of original wall and trim paint colors, replacement with matching style trim and wall boards, etc.). If there are any questions about acceptable materials or techniques to be used, please contact the CO. Fenn Administration office attic must remain sealed throughout entire construction project to prevent entry from bats and other wildlife.

Any and all excess materials and property paid for will be retained by the Forest Service.

Arranging a storage location for excess material will be at the discretion of the Contracting Officer.

The project is located at Fenn Ranger Station, this site is accessible year around.

The project is located at the Selway Falls Cabin, this site is accessible during the performance period.

The project is located at the Wilderness Gateway Campground, this site is accessible during the performance period.

Sub roof assemblies may not require repair and are not guaranteed quantities.

A. Transportation: The Contractor shall provide adequate and safe methods for trucking and transporting equipment and materials onto and off the projects sites. All Local, State, and Federal regulations and laws shall be complied with by the Contractor during trucking and transporting operations on Local, County, State, and Forest roads.

B. Clean substrate of any projections and substances detrimental to shingling work.

C. Proceed with installation of underlayment and shingles only when weather conditions are in compliance with manufacturer’s recommendations and when substrate is completely dry.

1.2 DEMOLITION OF EXISTING ROOF

Temporary Protection: Maintain integrity of attic enclosure keeping all openings, holes, joints, and gaps sealed to prevent entry from bats or other wildlife. Erect temporary protection, such as walks, fences, railings, canopies, and covered passageways, where required by authorities having jurisdiction, and as indicated.

1. Provide protection to ensure safe passage of people around building demolition area to and from occupied portions of adjacent buildings and structures, in accordance with Federal OSHA requirements.

A. Warning Signs and Labels:

Provide warning signs at all approaches to the work areas. Locate signs at such a distance that personnel may read the sign and take the necessary protective steps required before entering the area. Warning signs may be in the form of continuous plastic tape. The warning signs shall have black characters on a yellow background.

WARNING

DO NOT ENTER

Alternate wording for the warning signs will be approved by the project manager.

1.3 DIMENSIONS FIELD VERIFICATION

A. Field verify all dimensions affecting the work of this contract prior to ordering materials.

B. Note: All dimensions must be field-checked as these numbers are estimates.

C. Due to the age of the structures, the lumber could be dimensional or nominal. Verify prior to ordering material.

1.4 Measurement and Payment - Measurement and payment for contract work will be made only for and under those pay items included in the SCHEDULE OF ITEMS. All other work and materials will be considered as incidental to the pay items shown.

1.5 All Submittals - It will be the Contractor's responsibility to submit information on all items required with such promptness as to cause no delay in the work. Approvals must be obtained before starting work on parts of the project which involves the submittal.

Contractor shall allow 10 calendar days for processing of submittals by the Government.

A. Submit four copies of submittals and shop drawings to the Contracting Officer for approval on the items required herein. Literature which is not marked or otherwise designated to show the exact model and size that the contractor proposes to use will be returned by the Contracting Officer "without action." Circle or check items to be used on submittals. Highlighter pens may print black writing or may not show up at all when copied and should not be used. One copy of all submittals and shop drawings will be returned to the contractor. Information must be adequate to determine compliance with specifications.

B. Substitution - Materials in the specifications may be followed by the words "or approved equal." In these cases, wherever the name or brand of a manufacturer's article is specified, it is used as a measure of quality and utility or a standard. If the Contractor prefers to use any other brand or manufacturer of same quality, appearance and utility to that specified, he shall request substitution as provided below, not less than 10 days before the planned installation of the item. The Contracting Officer will approve or disapprove the request for substitution and his decision shall be final. Unless substitutions are requested within the time stated above and as provided below, no deviation from the specifications will be allowed.

Requests for substitutions will only be considered if contractor submits the following:

1. Complete technical data including drawings, complete performance specifications, test data, samples and performance tests of the article proposed for substitution. Submit additional information if required by Contracting Officer. All items in the above information shall be circled, tagged, or marked in some way to indicate all deviations or differences which the proposed item differs from the originally specified item.

2. Similar data as above for item originally specified. All items shall be marked to identify where/how the proposed substitution will differ.

3. A statement by the Contractor that the proposed substitution is in full compliance with the contract documents, applicable codes, and laws; and that the Contractor takes on the responsiblity for any effect upon related work in the project for any substitution and shall pay any additional costs generated by any substitutions.

1.6 Related Work - The work shall be in accordance with these specifications. The following is a list of the specifications that are included with this package.

SECTION 00050 – FENN ADMIN BUILDING, SELWAY, & GATEWAY ROOFING

SECTION 001900 – MOBILIZATION

SECTION 011250 - MEASUREMENT AND PAYMENT

SECTION 021350 - WASTE MATERIAL DISPOSAL (LANDFILL)

SECTION 024119 – SELECTIVE DEMOLITION

SECTION 074113-1 – ROOF REPLACEMENT

SECTION 074113-2 – METAL ROOF PANELS

SECTION 074113-3 – ROUGH CARPENTRY

END OF SECTION

February 2017

MOBILIZATION 001900

SECTION 001900 - MOBILIZATION

PART I - GENERAL

1.1 Mobilization - This item is intended to compensate the Contractor for operations including, but not limited to, those necessary for the movement of personnel, equipment, supplies, and incidentals to the project site; for payment of premiums for bonds and insurance for the project; and for any other work and operations which must be performed or costs that must be incurred incident to the initiation of meaningful work at the site and for which payment is not otherwise provided for under the contract.

1.2 Method of Measurement - The measurement shall be lump sum for mobilization.

1.3 Basis of Payment - The lump sum price shall include full compensation for mobilization.

Progress payments for mobilization will be made as follows:

A. Bond premiums will be reimbursed after receipt of the evidence of payment.

B. 50% of the lump sum, not to exceed 5% of the original contract amount, will be paid following completion of 5% of the original contract amount not including mobilization and bond premiums.

C. Payment of the remaining portion of the lump sum, up to 10% of the original contract amount, will be paid following completion of 10% of the original contract amount not including mobilization and bond premiums.

D. Any portion of the lump sum in excess of 10% of the original contract amount will be paid after final acceptance.

Progress payments for mobilization and preparatory work shall be subject to retainage.

PART II - PRODUCTS (Not Applicable)

PART III - EXECUTION (Not Applicable)

MEASUREMENT AND PAYMENT 011250-1

SECTION 011250 - MEASUREMENT AND PAYMENT

PART 1 - GENERAL

1.1 SUMMARY

A. Measurement and payment for contract work will be made only for and under those pay items included in the Schedule of Items. All other work, labor, materials, equipment, and incidentals necessary to successfully complete the project will be considered as included in the payment for items shown. This section defines the method of measurements and basis of payment for work items listed in the Schedule of Items.

B. When more than one class, size, type, thickness, etc. is specified in the Schedule of Items for any pay item, suffixes will be added to the item number to differentiate between the pay items.

1.2 DETERMINATION OF QUANTITIES

A. The following measurements and calculations shall be used to determine contract quantities for payment.

1. For individual construction items, longitudinal and lateral measurements for area computations shall be made horizontally or corrected to horizontal measurement unless otherwise specified. Measurements for geotextiles, netting and erosion control blankets shall be along slope lines.

2. For excavation or embankment volumes, the average end area method shall be used to compute volumes. However, if in the judgment of the Contracting Officer (CO), the average end area method is impractical, measurement shall be made by volume in hauling vehicles or by other three-dimensional methods.

3. For Structures, they shall be measured according to neat lines shown on the drawings or as altered by the CO, in writing, to fit field conditions.

4. For items that are measured by the linear foot, such as pipe culverts, fencing, guardrail, piping, utilities, and underdrains, measurements shall be made parallel to the base or foundation upon which the structures are placed.

5. For aggregates weighed for payment, the tonnage shall not be adjusted for moisture content, unless otherwise provided for.

MEASUREMENT AND PAYMENT 011250-2

6. For standard manufactured items (such as fence, wire, plates, rolled shapes, pipe conduits) identified by gauge, weight, section dimensions, and so forth, such identifications shall be considered the nominal weights or dimensions. Unless controlled by tolerances in cited specifications, manufacturer's tolerances shall be accepted.

B. Earthwork Tolerances - Adjustments of horizontal or vertical alignment, within the tolerances specified in this contract, or shifts of balance points up to 100 feet shall be made by the contractor as necessary to produce the designed sections and to balance earthwork. Such adjustments shall not be considered as "Changes."

1.3 UNITS OF MEASUREMENT

A. Payment shall be by units defined and determined according to U.S. Standard measure and by the following:

1. Acre: Make longitudinal and transverse measurements for area computations horizontally.

2. 50lb Bag: Measurement will be for the actual number of 50lb bags of standard bentonite grout.

3. 94lb Bag: Measurement will be for the actual number of 94lb bags of standard cement or grout.

4. Cubic Yard (CY): A measurement computed by one of the following methods:

• Excavation, Embankment, or Borrow. The measurement computed by the average end area method from measurements made longitudinally along a centerline or reference line.

• Material in Place or Stockpile. The measurement computed using the dimensions of the in-place material.

• Material in the Delivery Vehicle. The measurement computed using measurements of material in the hauling vehicles at the point of delivery.

Vehicles shall be loaded to at least their water level capacity. Leveling of the loads may be required when vehicles arrive at the delivery point.

5. Each (EA): One complete unit, which may consist of one or more parts.

6. Gallons (GAL): The quantity shall be measured by any of the following methods:

• Measured volume in container.

• Metered volume by approved metering system.

• Commercially package volume.

MEASUREMENT AND PAYMENT 011250-3

7. Hour (HR): Measurement will be for the actual number of hours (or fraction thereof) ordered by the Contracting Officer and performed by the contractor.

8. Linear Foot (LF): Measurement of work along its length from point-to-point;

parallel to the base or foundation. Do not measure overlaps.

9. Lump Sum (LS): One complete unit.

10. Mile: Measured horizontally along the centerline of each roadway, approach, or ramp.

11. Pound (LB): For sacked or packaged material, measurement will be the net weight as packed by the manufacturer.

12. Square Foot (SF): Measured on a plane parallel to the surface being measured.

13. Square Yard (SY): Measured on a plane parallel to the surface being measured.

14. Ton: Measured as a short ton consisting of 2,000 pounds.

1.4 METHOD OF MEASUREMENT

A. One of the following methods of measurement for determining final payment is designated on the Schedule of Items for each pay item:

1. ACTUAL QUANTITIES (AQ) - These quantities are determined from actual measurements of completed work.

2. DESIGNED QUANTITIES (DQ) - These quantities denote the final number or units to be paid for under the terms of the contract. They are based upon the original design data available prior to advertising the project. Original design data include the preliminary survey information, design assumptions, calculations, drawings, and the presentation in the contract. Changes in the number of units shown in the Schedule of Items may be authorized under any of the following conditions:

• As a result of changes in the work authorized by the CO.

• As a result of the CO determining that errors exist in the original design that cause a pay item quantity to change by 15 percent or more.

• As a result of the Contractor submitting to the CO a written request showing evidence of errors in the original design that cause a pay item quantity to change by 15 percent or more. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is believed to be in error.

MEASUREMENT AND PAYMENT 011250-4

3. LUMP SUM QUANTITIES (LSQ) - These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job. They shall not be measured.

4. STAKED QUANTITIES (SQ) - These quantities are determined from staked measurements prior to construction.

5. VEHICLE QUANTITIES (VQ) - These quantities are measured or weighed in hauling vehicles.

PART 2 - PRODUCTS (NOT APPLICABLE)

PART 3 - EXECUTION (NOT APPLICABLE)

END OF SECTION 011250

WASTE MATERIAL DISPOSAL 021350

SECTION 021350 - WASTE MATERIAL DISPOSAL (LANDFILL)

PART 1 - GENERAL

1.1 This item shall consist of loading, handling, hauling, and disposal of excess materials and trash resulting from construction activities. The existing roofing materials and items shall be disposed of off National Forest in accordance with all state and federal laws. The Contractor shall be responsible for all costs, royalties, arrangements, procurement, cleanup, and work associated with a waste disposal area.

1.2 Measurement of Payment - No separate measurement or payment will be made for disposal of waste material disposal, rather payment will be considered to be incidental to other items of work.

PRODUCTS (Not Applicable)

EXECUTION

3.1 All trash and construction debris resulting from installation, demolition, and construction are the responsibility of the Contractor and shall be removed and disposed of legally.

SELECTIVE DEMOLITION 024119

SECTION 024119 - SELECTIVE DEMOLITION

GENERAL

SECTION REQUIREMENTS

1.1 Items indicated to be removed become Contractor's property. Detach from existing construction, and dispose of as indicated in SECTION 021350 – WASTE MATERIAL DISPOSAL. Government will occupy portions of building immediately adjacent to selective demolition area. Conduct selective demolition so Owner's operations will not be disrupted. It is not expected that hazardous materials will be encountered in the work. If hazardous materials are encountered, do not disturb; immediately notify CO in writing.

Hazardous materials will be removed by Government under a separate contract.

1.2 Measurement of Payment - No separate measurement or payment will be made for

SELECTIVE DEMOLITION, rather payment will be considered to be incidental to other items of work.

PRODUCTS

PEFORMANCE REQUIREMENTS

Regulatory Requirements: Comply with EPA regulations and with hauling and disposal regulations of authorities having jurisdiction.

Standards: Comply with ANSI/ASSE A10.6 and NFPA 241.

EXECUTION

DEMOLITION

A. Maintain services/systems indicated to remain and protect them against damage during selective demolition operations. Before proceeding with demolition, provide temporary services/systems that bypass area of selective demolition and that maintain continuity of services/systems to other parts of the building.

B. Provide temporary barricades and other protection required to prevent injury to people and damage to adjacent buildings and facilities to remain.

C. Protect walls, ceilings, floors, and other existing finish work that are to remain. Erect and maintain dustproof partitions. Cover and protect furniture, furnishings, and equipment that have not been removed.

SELECTIVE DEMOLITION 024119

D. Provide and maintain shoring, bracing, and structural supports as required to preserve stability and prevent movement, settlement, or collapse of construction and finishes to remain, and to prevent unexpected or uncontrolled movement or collapse of construction being demolished.

E. Provide temporary weather protection to prevent water leakage and damage to structure and interior areas.

F. Neatly cut openings and holes, keeping work square, plumb and true to dimensions required. Use cutting methods least likely to damage existing construction or adjoining construction.

G. Remove demolition waste materials from Project site and legally dispose of them as per

SECTION 021350 – WASTE MATERIAL DISPOSAL.

H. Clean adjacent structures and improvements of dust, dirt, and debris caused by selective demolition operations. Return adjacent areas to condition existing before selective demolition operations began.

ROOF REPLACEMENT 074113

SECTION 074113 ROOF REPLACEMENT

PART 1 - GENERAL

1.1 DESCRIPTION OF WORK

Roof Replacement work includes removal of existing wood shingles & felt, removal and replacement of damaged or rotten subroof planking, and installation of new roofing Ice and Water Shield, felt, and wood shingles or shakes. Attic areas must remain sealed throughout entire construction project to prevent entry from bats and other wildlife. The existing roofing materials and items shall be disposed of off forest in accordance with all state and federal laws.

1.2 GENERAL

A. SCOPE – Perform all work necessary or required for the removal and replacement of the wood shingle roof in accordance with specification(s) and as indicated on the drawings.

Some minor subroofing repairs may be necessary. Final cleanup of the site is included in the work.

B. Grade Marks – Each bundle of shingles shall bear a grade stamp showing the grade of the wood and the grading authority.

C. Materials Handling – All materials shall be delivered to the site in an undamaged condition, stored in fully covered, well-ventilated areas, and protected from extreme changes in temperature and humidity.

D. Measurement and Payment – All work except subroof repair (ROUGH CARPENTRY) will be included in the Lump Sum price for the roof as shown in the Schedule Of Items.

Repair of the subroof is not guaranteed and will be paid at the rate shown in the Schedule of Items for the Actual Quantity required and accepted.

1.2 SUBMITTALS

Submit (2) copies to the CO for approval on the items and materials required. It shall be the Contractor’s responsibility to submit all items with such promptness as to cause no delay in the work, and obtain CO’s approval before starting work that involves the item submitted. Submit information at least 10 working days prior to planned delivery date of product to the worksite.

A. Literature must be marked or otherwise designated to show the exact model, size, etc., the contractor proposed to use. Information must be adequate to determine compliance with specifications.

B. One (1) copy of all submittals will be returned to the contractor.

C. Manufacturer’s literature is required for the following items.

1. NONE

1.3 DELIVERY, STORAGE, AND HANDLING

Deliver material to the site, undamaged, with labels intact. Store out of the weather in a well ventilated area. Comply with manufacturer’s instructions.

PART 2 – PRODUCTS

2.1 WOOD SHINGLES AND RAKE SHINGLES (Fenn and Selway Falls)

Shingles – The shingles shall be 16 inch, No. 1 Red Cedar, Premium Grade, 100 percent V.G. 100 percent clear 5/2 perfect. Treated with cca to prevent moss build up.

2.2 WOOD SHAKES

Shakes – the Shakes shall be Premium No. 1 Medium Red Cedar, size shall be 24” medium

2.3 STARTER SHINGLES and RAKE SHINGLES (Wilderness Gateway)

Starter shingles – Shall be 16” No. 1 Red Cedar Premium Grade.

2.4 NAILS

Nails for shingle roofing must be Hot Dipped Zinc Coated Nails 16d, size as required to firmly secure the shingles to sheathing. Nails shall not penetrate exposed surfaces. Staples will not be allowed.

2.6 FLASHING

Use 26 gauge galvanized valley and edge flashing.

2.7 SUBROOF SHEATHING/PLANKING AND FASTENERS

Match existing.

2.8 ICE AND WATER SHIELD

Ice and Water Shield – Shall be either Grace “Ultra” Ice and Water Shield as manufactured by W.R. Grace, or “Stormguard HT” as manufactured by Certainteed, or an approved equal may be submitted to the Contracting Officer for review and approval.

2.6 FELT

Roofing Felt: ASTM D226 unperforated, 30 lb felt.

2.7 ZINC SHIELD

Zinc shield – Shall be “ZincShield” Zinc strips manufactured by ZincShield or as approved equal may be submitted to the Contracting Officer for review and approval.

2.8 ROOF ANCHORS

Anchors – Shall be French Creek Production, model 1730 or as otherwise approved by the Contracting Officer.

PART 3 – EXECUTION

3.1 PROTECTION OF STRUCTURE

Take all precautions necessary to protect structure from damage during the roof replacement work.

3.2 SITE PREPARATION

A. All existing roofing materials including roofing felt, shingles, metal flashing, and ridge caps shall be removed and disposed of off forest in accordance with all state and federal laws. The Contractor shall be responsible for any and all charges at a landfill.

B. The existing subroofing shall be cleaned and repaired as necessary, as approved by the CO or COR, with like materials to provide a solid, smooth surface for placement of the new roofing materials.

3.3 ROUGH CARPENTRY

Remove, dispose of, and replace any damaged or rotten subroof sheathing/planks exposed by removal of existing roof. Secure CO approval prior to removing existing roof sheathing. Nail any loose existing sheathing.

3.4 WOOD SHAKE INSTALLATION (Wilderness gateway Pavilion)

A. Install felt underlayment on roof sheeting. Lap ends of felt not less than 6 inches (150

mm) over previous layer and treat ridges, edges, and ends as per manufacture’s recommendations.

B. Install 3.5” wide Zinc Shield strips entire length of ridgelines, above, and below all points where there is a breach in roofing.

C. Install and use fall protection anchor points in accordance with manufacturer’s instruction and OSHA standards 1910.66, OSHA 1926.502. Four permanent anchor points shall be installed per side on the structure, with eight anchor points totalz.

D. Lay shakes with a 10 inch exposure to match existing. Apply double starter course at eaves using starter shingles as the first course and as the rake and shakes as the second.

Project first course 2 inch beyond sheathing. Space shakes 1/4 inch apart and staggers joints 1-1/2 inch in adjacent courses. Joints in alternate courses shall not be in direct alignment. With two nails per shingle, 3/4 inch from the edge and not more than 1 inch above the exposure line or as per industry standard with approval by CO.

1.) Apply shakes w Hand-nailing the shingles is required. Nails must not be left proud, nor must they be driven below the surface of the shingle. Nails must penetrate at least halfway through the thickness of the sheathing, but must not penetrate completely through the sheathing.

2.) Only smooth-faced hammers are allowed during this project. No milled-faced or wafflehead hammers are allowed.

3.) Personnel working on the roof are not allowed to wear spiked or cleated shoes in order to prevent damage to the shingles.

4.) If the contractor uses a harness and/or safety rigging to conduct roof work, a complete harness and/or safety rigging will be made available by the contractor for Forest Service inspections by the COR and/or the Inspector.

E. Ridge line should be alternating hip and ridge cap from the outside in.

3.5 SHINGLE INSTALLATION (Fenn Administrative building and Selway Falls Cabin)

A. Install ice and water shield in accordance with manufacturer’s directions. Ice and water shield shall cover entire roof at Fenn Ranger Station.

B. Install 3.5” wide Zinc Shield strips entire length of ridgelines, above, and below all points where there is a breach in roofing.

C. Install and use fall protection anchor points in accordance with manufacturer’s instruction and OSHA standards 1910.66, 1926.502. Three permanent anchor points shall be installed per side on the Fenn Admin building, with a total of six anchor points for the building. Selway falls cabin shall have two permanent anchor points, with one centered anchor per side.

D. The starter course of shingles shall be triple at the eaves with the butts of the starter course projecting 2 inch beyond the first roof board. Install a layer of rake Shingles at the eaves of all dormers and roofs ends. All shingles when laid on the roof, shall be spaced ¼ inch apart. The joints of any one course shall be spread not less than 1½ inch from the joints in the adjacent courses, and the joints alternated so they do not exactly line up. Lay all shingle courses 5.5 inches to the weather. Not more than 2 nails shall be used for each shingle. Each nail shall be placed not more than ¾ inch from the edge of the shingle, and not more than 1 inch above the butt line of the next course, but never so that they are exposed to the weather.

1.) Hand-nailing the shingles is required. Nails must not be left proud, nor must they be driven below the surface of the shingle. Nails must penetrate at least halfway through the thickness of the sheathing, but must not penetrate completely through the sheathing.

2.) Only smooth-faced hammers are allowed during this project. No milled-faced or wafflehead hammers are allowed.

3.) Personnel working on the roof are not allowed to wear spiked or cleated shoes in order to prevent damage to the shingles.

4.) If the contractor uses a harness and/or safety rigging to conduct roof work, a complete harness and/or safety rigging will be made available by the contractor for Forest Service inspections by the COR and/or the Inspector.

E. Vents stacks extending through the roof shall be made water tight with galvanized flashing with a neophrene ring.

F. Construct ridge caps to match ridge line on the Assessors building(building behind and to the west of the Fenn Administration Office). Use fasteners, sealants and other miscellaneous items as required to install the ridges to fit the substrate and result in waterproof performance.

3.6 METAL FLASHING INSTALLATION

A. General: Install metal flashings and other sheet metal to comply with requirements in Division 7 Section "Sheet Metal Flashing and Trim."

1.) Install metal flashings according to wood roofing recommendations in NRCA's "The NRCA Roofing and Waterproofing Manual."

PART 4 - MEASUREMENT AND PAYMENT

4.1 GENERAL

The method of measurement will be as designated in the SCHEDULE OF ITEMS.

The accepted quantities will be paid for at the contract unit price for the Pay Items shown in the

SCHEDULE OF ITEMS.

Payment will be for all labor, equipment, transportation, supervision, operating supplies, materials, and incidentals necessary to complete the work specified in this section shall be paid for as a Lump Sum.

Repair of the subroof will be paid at the rate shown in the Schedule of Items for the Actual Quantity required and accepted by the CO.

SECTION 074113 -2 METAL ROOF PANELS

PART 1 - GENERAL

1.1 SUMMARY - This Section includes the following: Preformed Aluminum Shake Metal Roofing, Furnish and install all supplementary or miscellaneous items, ridge caps, valleys, accessories, and devices incidental to or necessary for a sound, secure and complete installation.

1.2 MEASUREMENT AND PAYMENT - There will be no separate measurement and payment made for work in this section. Work in this section will be considered incidental and included in payment for items listed in the Schedule of Items.

1.3 PERFORMANCE REQUIREMENTS

A. Structural Performance: Metal roofing shall be designed to meet the most current International Building Code (IBC) and in accordance with the following minimum requirements below:

1. Snow Load: 200 PSF.

2. Wind Load: 70 MPH, Exposure C, with uplift considerations.

a. Wind Prying shall be considered for roof panels and accessories with the following factors of safety:

1) Single fastener in each connection 3.00

2) Two or more fasteners in each connection 2.25

3. Live Load: 20 PSF

4. Seismic Loads: Per IBC 2008 Edition

5. Span: Varies

6. Thermal Loads: free movement of roof panels in response to temperature changes of 150 degrees F during the life of the structure.

1.4 SUBMITTALS

Roofing shall be Classic Metal Roofing Systems, Country Manor roof panels: Samples of roofing textures and colors from the full range of manufactures’ roofing textures and colors.

Submit one 8-inch long sample of panel, including clips/installation equipment.

Submit two color chart samples for the approved roof texture.

A. Performance Testing and Documentation:

1.) Metal roof system must be tested in accordance with Underwriters Laboratories, Inc. (UL) Test Method 580 "Tests for Uplift Resistance of Roof Assemblies".

2.) Metal roof system must be tested in accordance with ASTM E 1592-95 for negative loading when AISI specifications do not apply. Capacity for gauge, span or loading other than those tested may be determined by interpolating test values.

3.) Metal roof system must meet the air infiltration requirements of ASTM E 283- 84 when tested with a 6.24 PSF pressure differential.

4.) Metal roof system must meet the water penetration requirements of ASTM E 331-83 when tested with a 6.24 PSF pressure differential with no uncontrollable water leakage when five gallons per hour of water is sprayed per square foot.

B. Metal Material Warranty 1.) Metal roof system manufacturer shall submit a specimen copy of their warranty prior to materials being ordered. Provide the following warranty submittal to the COR/Project Manager.

2.) Roof Finish: Covering bare metal against rupture, structural failure and perforation due to normal atmospheric corrosion exposure for a period of 20 years.

3.) Weather tightness: The Contractor shall provide to the Project Manager a standard warranty signed by the roofing manufacturer of the Standing Seam Roof System for a period of ten (10) years from the Date of Substantial Completion, the roofing manufacturer WARRANTS to the Contracting Officer that the roofing manufacturer's furnished roof panels, flashing, and related items used to fasten the roof panels and flashing to the roof structure ("Roof System") will not allow intrusion of water from the exterior of the Roof System into the building envelope, when exposed to ordinary weather conditions and ordinary wear and usage. The date of substantial completion is the date that is certified by the Contracting Officer.

PART 2 - PRODUCTS

2.1 METAL ROOF PANELS

Classic Metal Roofing Systems, Country Manor Shake Series, or an approved equal.

Metal Roof System Profile: 48” inch x 12 inch wide panels.

Panel Style: Four side interlocking design Gauge: .019” thick roofing panels Texture: Cedar Shake Color: Cedar or as approved

2.2 MISCELLANEOUS ROOFING MATERIALS

A. Roofing Felt: ASTM D226 unperforated, 30 lb felt.

B. Fasteners:

1.) All self-tapping/self-drilling fasteners, bolts, nuts, self-locking rivets and other suitable fasteners shall be designed to withstand specified design loads.

2.) Use long life fasteners for all interior and exterior metal roof system applications.

3.) Provide fasteners with a factory applied coating in a color to match metal roof system application.

4.) Provide neoprene washers under heads of exposed fasteners.

5.) Locate and space all exposed fasteners in a true vertical and horizontal alignment.

Use proper torque settings to obtain controlled uniform compression for a positive seal without rupturing the neoprene washer.

C. Accessories: Provide all components required per the metal roof system manufacturer's approved shop drawings for a complete metal roof system to include panels, panel clips, trim/flashing, fascias, ridge, closures, sealants, fillers and any other required items.

1.) All tape seal is to be a pressure sensitive, 100 percent solids, polyisobutylene compound sealing tape with a release paper backing. Provide permanently elastic, non-sagging, non-toxic, non-staining tape seal approved by the metal roof system manufacturer.

2.) All joint sealant is to be a one-part elastomeric polyurethane sealant approved by the metal roof system manufacturer.

PART 3 - EXECUTION

3.1 ROOFING INSTALLATION

A. Install felt underlayment on roof sheeting. Lap ends of felt not less than 6 inches (150 mm) over previous layer and treat ridges, edges, and ends as per manufacture’s recommendations

B. Install metal roof system so that it is weathertight, without waves, warps, buckles, fastening stresses or distortion, allowing for expansion and contraction.

C. Install metal roof system in accordance with manufacturer's instructions and shop drawings.

D. Provide concealed anchors at all panel attachment locations.

E. Install panels plumb, level and straight with seams and ribs parallel, conforming to design as indicated.

F. Clean work in accordance with manufacturer's recommendations.

G. Protect work against damage until final acceptance. Replace or repair to the satisfaction of the Contracting Officer’s Representative, any work that becomes damaged prior to final acceptance.

H. Touch up minor scratches and abrasions with touch up paint supplied by the metal roof system manufacturer.

I. Do not allow panels or trim to come in contact with dissimilar metals such as copper, lead or graphite. Water run-off from these materials is also prohibited.

April 2017

ROUGH CARPENTRY 074113

SECTION 074113-3 – ROUGH CARPENTRY

PART 1 - GENERAL

Description of Work - Remove, dispose of, and replace any damaged or rotten subroof sheathing/planks exposed by removal of existing roof. Secure CO approval prior to removing existing roof sheathing. The existing roofing materials and items shall be disposed of off forest in accordance with all state and federal laws.

Grade Marks - All lumber and plywood shall be grade stamped.

Measurement and Payment - No separate payment will be guaranteed for work under this section. Payment for this work must be approved by the CO in writing.

PART 2 - PRODUCTS

Materials - All lumber shall be seasoned, surfaced four sides (S4S), except where replacement in kind deviates from this.

A. Light Framing – Cedar, Standard and better grade, as graded by Western Wood Products Association or West Coast Lumber Inspection Bureau, or equal.

B. Pressure Treated Framing - FDN grade Douglas fir as designated by American Wood Preservers Association or American Wood Preservers Bureau.

C. Roof Sheathing and Exterior Wall Sheathing – APA Rated ¾” sheathing or replace with like kind and dimensions of original material(s), as directed by the CO in writing.

D. Interior Plywood Wall Sheathing - CDX fir, interior type, with exterior glue, as graded by the American Plywood Association.

E. Trim and Moldings - Interior - C select pine, as graded by the Western Wood Products Association.

F. Ice & Water Shield – Grace Ice & Water Shield HT or equal. Install over entire roofing structure.

PART 3 - EXECUTION

General

Nailing - Nailing shall conform with the requirements of the International Building Code, unless otherwise specified.

ROUGH CARPENTRY 074113

General Carpentry

General - All framing shall be accurately cut and constructed plumb, straight, and true to lines and dimensions shown. No cutting and boring of joists and beams shall be done without permission from the Contracting Officer.

Roof Sheathing - The roof sheathing shall be installed with the face grain laid perpendicular to the rafters, end joints staggered, and nailed at each crossing and end. Butted end joints shall occur only over bearing points.

Blocking and Bracing - Blocking needed for bracing, edge support, and backing for miscellaneous accessories, grab bars, toilet paper dispensers, door stops, any needed to stabilize walls and other building elements, and other miscellaneous blocking shall be included as part of this work.

Finish Work

Wood Trim - All wood trim shall be run from solid stock with housed joints. Trim shall be set plumb and securely nailed with all joints tightly fit with no gaps. No gaps in joints which would require putty or other fill will be allowed.

All trim shall be in single lengths. Running finish, such as base and moldings, shall be in commercial lengths and jointed only where solid fastenings can be made. Where end joints are required, miter joints shall be made.

Exterior siding, trim, soffit, and fascia - General: Comply with siding manufacturer's written installation instructions applicable to products and applications indicated unless more stringent requirements apply.

Seal butt joints at inside and outside corners and at trim locations.