FA4625-11-R-0002-Whiteman-Roofing IDIQ-Attachment 1 SOW.pdf

FA4625-11-R-0002

Attachment 1

SPECIFICATIONS

FOR

MAINTAINANCE, REPAIR AND REPLACEMENT OF

BASE ROOFS

AT

WHITEMAN AFB, MISSOURI

509th

CIVIL ENGINEER SQUADRON

TABLE OF CONTENTS

DIVISION 1: GENERAL REQUIREMENTS

01010 - GENERAL REQUIREMENTS Pages 3 - 12

DIVISION 2: SITE WORK

02070 - SELECTIVE DEMOLITION Pages 13 - 17

DIVISIONS 3 thru 4 NOT USED

DIVISION 5-METALS

05400-LIGHT GAUGE STEEL ROOF TRUSSES/FRAMING Pages 18 - 22

DIVISION 6: WOOD AND PLASTICS

06100 - ROUGH CARPENTRY Pages 23 - 27

06192- PREFABRICATED METAL-PLATE WOOD TRUSSES Pages 28 - 33

DIVISION 7: THERMAL AND MOISTURE PROTECTION

07311 - ASPHALT SHINGLES Pages 34 - 40

07511 - BUILT-UP ASPHALT ROOFING Pages 41 - 56

07531 – SINGLE PLY (EPDM) MEMBRANE ROOFING Pages 57 - 68

07536 - MODIFIED BITUMEN ROOFING Pages 69 – 78

07545-SINGLE PLY (TPO) ROOFING Pages 79 - 96

07610 - SHEET METAL ROOFING Pages 97 - 104

07620 - SHEET METAL FLASHING AND TRIM Pages 105 - 110

07631 - GUTTERS & DOWNSPOUTS Pages 111 - 113

07920 - JOINT SEALANTS Pages 114 - 124

DIVISION 8 NOT USED

DIVISION 9: FINISHES

09900 - PAINTING Pages 125 - 130

DIVISION 10 thru 16 NOT USED

SECTION 01010: GENERAL REQUIREMENTS

PART 1.0: STATEMENT OF WORK:

1.1 The work to be performed consists of furnishing all parts, labor, materials, equipment, supplies, services, and supervision necessary to inspect, test, maintain, and repair various roofing systems at Whiteman Air Force Base, Missouri.

1.2 The work is to include, but not limited to the following major items of work and are listed for the Contractor’s convenience in order that the general scope of the work involved may be determined.

1.2.1 WORK REQUIRED: The Contractor shall provide various roofing systems, maintenance and repair services, as required. Work required includes but is not limited to testing, maintenance, and repair of roofing systems. Specific requirements for each job will be identified in individual Delivery Orders as issued by the Government under this contract.

1.2.2 INTENT: It is the intent of this contract to extend the serviceable life of existing roofing systems by general maintenance and repair. Some roofs may be repaired by complete replacement.

1.2.3 ROOF TYPES: This work will be limited to various types of asphalt shingled, asphalt built-up, modified , rubber (EPDM), plastic (TPO) and metal roofing systems.

1.2.4 ASSOCIATED WORK: The Contractor shall be responsible for demolition and disposal, carpentry, sheet metal, painting, caulking and similar trades related to the repair and replacement of various roofing systems. Carpentry may include minor repairs to wood structures and deck systems and replacement of wood fascias, soffits, and related trim. Extensive replacement of concrete and gypsum decks is not anticipated under this contract. However, miscellaneous demolition and repairs may be required. Repair and replacement of metal decks may be required depending on the extent of damage or deterioration.

1.2.5 ROOF EQUIPMENT: The Contractor shall be responsible for the removal, reinstallation or replacement of incidental roof vents and equipment as required for the accomplishment of roof repair. Appropriately skilled craftsmen will accomplish the removal of equipment requiring one or more skilled trades, such as electrical, mechanical, etc.

1.3 The Government will make available to the Contractor any information on file concerning existing conditions on any given roofing system identified for maintenance, repair, or replacement. It will be the responsibility of the Contractor to verify actual amount of work, dimensions, and field conditions, which affect the work prior to the commencement of any given Delivery Order. All work shall be in strict conformance to these specifications herein as well as the pertaining information found in the current editions of the Standard Building Code, BOCA National Code. National Roofing Manufacturers Association manual, Asphalt Roofing Manufacturers Association manual, NRCA Steep Roofing manual, Residential Asphalt Roofing manual, National Electric Code (NEC), and applicable local, state. And federal codes/regulations. All work to lead-containing materials shall be in accordance with (IAW) 29 CFR 1926.62. Work relating to asbestos containing materials shall be in accordance with 29 CFR 1926.1101 and SCDHEC Regulations 61, Subparts A and M.

PART 2.0: LOCATION:

Whiteman AFB is approximately 60 miles east of Kansas City, Missouri then south 21.8 miles on Highway 23. The Le May Gate is the primary vehicle entrance point, which is approximately 4.5 miles south of Highway 50, on Highway 23.

PART 3.0: AMBIENT FACTORS OF WORK:

3.1 WORKING HOURS: Working hours for the Contractor will normally be between the hours of 7:30am to 4:30pm, Monday through Friday, excluding federal holidays.

However, depending on the individual Delivery Order, the Contractor may be allowed to work between Sun-up and Sundown. If the Contractor desires to work during periods later than above, additional Government inspection forces may be required. The Contractor shall notify the Contracting Officer five (5) workdays in advance of his or her intention to work during the other periods to allow assignment of additional inspection forces when the Contracting Officer determines that they are reasonably available. If such forces are reasonably available, the Contracting Officer may authorize the Contractor to perform work during periods other than normal duty hours/days. However, if inspectors are required to perform in excess of their normal duty hours/days solely for the benefit of the Contractor, the actual cost of inspection at overtime rates will be charged to the Contractor and will be deducted from the final payment of the contract amount. The Contractor shall coordinate with the 509th Contracting Squadron prior to performing work after normal duty hours. Contractor should also coordinate through contracting and CE project management if escorts will be needed for the PL areas.

3.2 24-HOUR POINT OF CONTACT: The Contractor shall provide the Contracting Officer with 24-hour phone numbers for his/her representative. These numbers should be provided at the pre-construction conference, but not later than ten (10) calendar days after contract Notice to Proceed is issued.

3.2.1 In the event a problem with the Contractor’s work develops which could damage building contents, Government property, or jeopardize any portion of the work, the 24-hour point of contact will be accessed and the Contractor’s representative will respond immediately upon notification to rectify the problem.

3.3 PROJECT SUPERINTENDENT: Contractor shall employ a full-time superintendent on this project with the authority to fully negotiate and obligate the Contractor. Full-time is defined as it relates to this contract being during working hours, whenever contract work is being performed. The superintendent’s duties shall include the overall management of the project, coordination of Sub-Contractor’s work, liaison with the Contracting Officer and the Contracting Officer’s representative.

3.4 ASSIGNMENT OF WORK: Work will be assigned to the Contractor through the Contracting Officer by way of Delivery Order. The Contracting Officer’s technical representative shall identify building(s) to be roofed and provide a written “Statement of Work” defining the general scope of work. The Contractor may be required to complete projects that are accompanied with fully developed specifications and drawings.

Performance periods for each Delivery Order shall be agreed on prior to issuing the Delivery Order, through negotiations with the Contracting Officer.

3.5 ASSESSMENT OF WORK: Upon notification from the Contracting Officer and within two (2) work days of initial Government conducted site visit the Contractor shall submit a detailed Statement of Work, and proposal with justification for non-priced items, a proposed performance period and detailed time-line of Delivery Order activities.

At the Government conducted site visit, the Contractor, Contracting Officer, and technical representative shall meet at the proposed job site to assess and document the scope of work to be accomplished, any special conditions or existing adjacent building damage shall also be identified at that time. After initial site visit, the Contractor’s proposal shall be submitted to the Contracting Officer within the timeframe specified by the request for proposal per each Delivery Order. Exceptions maybe granted by the Contracting Officer for Delivery Orders that are particularly complex. In cases of urgent need, the Government may request a quick response for proposal on a requirement. To handle such cases, the Contractor should have a plan to provide proposals within three (3) to five (5) calendar days or sooner. Negotiations shall be held at the Contracting Officers request after submittal of the Contractors proposal.

3.6 ACCOMPLISHMENT OF WORK: The buildings adjacent to the construction area will most likely be occupied during construction. The project superintendent will coordinate work with the Technical Representative and ensure construction does not interfere with building operations.

3.6.1 Trash dumpsters shall not be stored in the vicinity of any entrances. No entrances to buildings or parking areas shall be blocked or closed at any time during the construction process. Construction debris shall be removed at the end of each construction day unless otherwise approved by the Contracting Officer. All dumpsters provided by the Contractor under performance of this contract shall contain labels clearly indicating “Contractor Use Only”.

3.6.2 The Contractor shall be responsible for all field measurements necessary in the accomplishment of work. The Contractor shall carefully examine the entire site to become familiar with existing conditions and facilities available, as well as difficulties involved in completing the work.

3.6.3 The Contractor will at all times follow the manufacturer’s specifications for installation of material and/or equipment.

3.7 WORK COORDINATION: Contractor shall coordinate all work with the Contracting Officer or the designated technical representative. The Contractor shall notify the Contracting Officer or the technical representative five (5) calendar days prior to moving onto the work-site to commence work. In the event work is interrupted for two

(2) or more days the contractor shall provide notification the day work begins No work shall be performed without the presence of a full-time superintendent on the job site IAW the General Provisions of the contract. The government reserves the right to reject work that was performed without a Contractor’s superintendent on the project site.

3.7.1 Contractor shall obtain the Technical Representative’s approval prior to demolition or performing tests. The request for such approval shall be given with sufficient advance notice to permit an inspection of the area before the work or test, in strict adherence with the project specifications and drawings.

3.8 SCHEDULE OF OPERATIONS: The schedule of operations to be performed under this contract will be as directed by the Contracting Officer so as to insure a minimum of inconvenience and interruption to normal daily operations in the area. The Contracting Officer shall be notified a minimum of five (5) work days prior to the interruption of any utility services. The Contractor shall be allowed the use of utility services (water, electric, and sewer) from the Government’s existing system outlets.

Temporary utility connections shall be at the Contractor’s expense and installation shall be subject to the approval of the Technical Representative. Temporary connections to fire hydrants will require prior approval from the 509th Civil Engineer Squadron, Operations -Utilities Section (509th CES/CEOIU), ext. 687-4259, to ensure installation of a backflow preventer, when required. 509th CES/CEOIU will provide and install the backflow preventer. The Contractor shall provide telephone and other services required for the work. If portable sanitary facilities are utilized, said facilities are subject to the approval of the Contracting Officer as to the location, cleanliness, and maintenance.

3.9 EMERGENCY RESPONSE: The Contracting Officer or Technical

Representative shall determine if an Emergency Response is needed. The contractor shall provide telephone numbers where emergency contact can be made 24 hours per day/7 days per week. The person responding to the call shall have full authority to act on behalf of the contractor. In case of an emergency, such as a roof damaged from storms or high winds posing threat to personnel or a facility, the contractor or the designated representative shall respond by telephone within one hour of contact. Once telephone contact is made, the contractor shall provide qualified service technicians and equipment on-site within 4 hours. The contractor shall be paid an additional 10% for all work performed within 24 hours of arrival at site. If the contractor is unable to perform the requested emergency service, the contractor shall notify the Technical Representative or the CO immediately to allow alternative arrangements to be made to accomplish the required service.

PART 4.0: STORAGE AREA:

4.1 MATERIAL STORAGE AREA: The Contractor must provide his own storage vehicle for materials and equipment. No government facilities will be available on base for material storage.

4.1.1 For larger individual Delivery Orders, the Contractor will be provided a material and equipment storage area as convenient as possible to the work area. The Contractor will maintain this area in a neat and Orderly manner. The Contractor is responsible for the security within this area and is encouraged to lock office, materials, tools, equipment, etc. Storage areas shall be restored to their original condition upon completion of work in a given area.

PART 5.0: APPLICABLE DRAWINGS AND SIGNS:

5.1 No drawings are provided with these specifications other than the storage area screening and fence drawings except when Government previously designed projects are provided for accomplishment under this contract. The Government will provide roof sketches and a narrative description of work for individual Delivery Order, as applicable.

One blue-line copy of available related record drawings will also be provided to the Contractor upon request.

5.2 The Contractor shall submit sketches/shop drawings of proposed repairs and materials for Contracting Officer approval on an AF Form 3000, Material Approval Submittal. Sketches shall include roof plans and details with their and locations of appropriate NRCA and specific system manufacturer’s standard details. All work shall be IAW NRCA and industry standards. NRCA standard details shall be used as referenced in individual specification sections. The Contractor shall obtain ready access to all such roofing industry standards and details and make this information available to the Government for review upon request.

5.3 The Contractor shall manufacture and install a warranty sign on each low sloped building roof under 3/12. Sign locations are to be directed by the 509th Civil Engineer Squadron, Roofing Programming Section (509th

CES/CEPM), per drawing below. An example sign shall be submitted with roofing material submittals on an AF Form 3000, Material Approval Submittal.

DO NOT MAKE

REPAIRS OR ALTERATIONS

TO THIS ROOF

WITHOUT APPROVAL

FROM

509th

(CHIEF OF OPERATIONS)

CES/CEO

THIS ROOF IS UNDER WARRANTY UNTIL: (*)

BY: (**)

ADDRESS: (***)

Signs to be posted as specified:

* = Insert warranty expiration date (Month & Year) ** = Insert manufacturer information (Name) *** = Insert manufacturer information (Address, and Phone number)

NOTE: Do not place signs on building without location direction from 509th Civil Engineer Squadron, Roof Program Manager (509th

CES/CEPM contract Project Manager).

PART 6.0: ENVIRONMENTAL:

6.1 CLEAN-UP: All waste materials generated by all work under this contract shall be handled, transported, stored and disposed of off-base by the Contractor and his Sub- Contractors IAW all applicable federal, state, or local codes, ordinances, regulations, court orders, or other types of rules or filings having the effect of law, including, but not limited to the following:

6.1.1 Federal Water Pollution Control Act, as amended, 33 USC Sec 1251 et.

seq.

6.1.2 Clean Air Act, as amended, 42 USC Sec. 7401 et. seq.

6.1.3 Solid Waste Disposal Act, as amended by the Resource Conservation and

Recovery Act, as amended, 42 USC Sec. 690 I et. seq.

6.1.4 Federal Insecticide, Fungicide An9 Rodenticide Act, as amended, 7 USC Sec. 736. et. seq.

6.1.5 Endangered Species Act of 1973, as amended, 16 USC Sec. 153 et. seq.

6.1.6 Comprehensive Environmental Response, Compensation and Liability

Act, as amended by the Superfund Amendments and Reauthorization Act, as amended 42 USC Sec 9601, et seq

6.1.7 Federal Environmental Protection Agency guidelines on thermal processing and land disposal of solid waste (40 CFR 240 and 241)

6.2 Handling of hazardous wastes, as defined by federal and state laws, shall be coordinated with the 509th Civil Engineer Squadron, Environmental Management Office (509th

CES/CEVC) ext: 687-6262.

6.3 If the Contractor or any of his Sub-Contractors creates an oil, or any other hazardous substance spill, they must implement initial notification procedures consistent with the installation’s Oil and Hazardous Substance Pollution Contingency Plan.

6.4 Spill containment and clean-up beyond the Contractor’s ability will be arranged or accomplished by the Government. The Contractor shall reimburse the cost to the Government for the cleanup.

6.5 POLLUTION CONTROL:

6.5.1 DUST: The Contractor shall maintain all work areas free from excess dust, the amount of dust resulting from demolition shall be controlled to prevent the spread of dust to occupied portions of the building and to avoid creation of a nuisance in the surrounding area. Dust control shall be performed as the work progresses and whenever a dust nuisance occurs. Use of water will not be permitted when it will result in, or create, hazardous or objectionable conditions such as ice, flooding, or pollution.

6.6 SAFETY

6.6.1 COMPLIANCE: The Contractor shall comply with all applicable regulatory local, state, and federal safety guidance including, but not limited to, the following:

6.6.1.1 OSHA 29 CFR 1910.132 Personal Protective Equipment General Requirements

6.6.1.2 OSHA 29 CFR 1910.23 Guarding Floor and Wall Openings and Holes

6.6.1.3 OSHA 29 CFR 1926.104 Safety Belts, Lifelines, and Lanyards

6.6.1.4 OSHA 29 CFR 1926.451 Scaffolds...

6.6.1.5 OSHA 29 CFR 1926.500 Fall Protection

6.6.1.6 ANSI A 10.8 Scaffolding

6.6.2 SAFETY BRIEFING: Prime Contractor shall brief Sub-Contractors on safety and fire prevention regulations, emphasizing the requirement to obtain a welding permit, when welding, cutting and brazing operations are required, and obtain authorization from the 509th Civil Engineer Squadron Fire Department (509th

CES/CEF) ext. 687-4507, when open burning is intended. Contractor shall maintain documentation that all Sub-Contractors have been briefed.

6.7 LAWS, ORDINANCES, AND REGULATIONS:

6.7.1 COMPLIANCE: The Contractor shall comply with all applicable requirements stated in the Toxic Substances Control Act of 1976.

6.7.2 All materials used in the performance of this contract shall be applied in strict accordance with manufacturer’s printed label instruction, including Material Safety Data Sheets (MSDS), and all applicable safety and environmental Standards. All hazardous materials warning labels and MSDS shall be kept on-site for review until completion of construction.

6.7.3 The use of Class I Ozone Depleting Substances, Asbestos Containing Materials, and Lead Containing Materials are strictly prohibited.

6.8 DAILY CLEAN UP: The Contractor shall cleanup the work area daily and remove waste/debris regularly to prevent accumulation. Waste/debris shall be kept from blowing onto surrounding areas. Clean up includes all construction materials, tools and equipment, drinking cups, personal effects, etc.

6.9 FINAL CLEAN-UP: Upon completion of the work, all construction materials, equipment, and debris shall be removed from each site and the area shall be left in a neat condition completely acceptable to the Contracting Officer.

6.10 OZONE DEPLETING CHEMICALS: Ozone Depleting Chemicals, Class I and II listed in Attachment 2 of AFI 32- 7080 are to be recovered by the Contractor and returned to the Government. The Ozone Depleting Chemicals may not be sold or given away to private industry unless otherwise specified by the government.

6.11 RECYCLE: In support of national environment effort, the Contractor shall recycle all ferrous and non-ferrous metals from the project. The Contractor shall also recycle general administrative refuse associated with this project. This refuse includes cardboard, one gallon mark I and 2 plastic bottles, type I and 2 plastic soda bottles, aluminum and steel soda cans, and mixed paper. All recyclable materials shall be turned into the recycling center. The Base Recycling Center at Mexico and Indiana Streets, will accept these items Monday through Friday between the hours of 7:00 a.m. and 4:00 p.m.

The telephone number for the Recycling Center is (660) 687-6253.

PART 7.0: PROTECTION OF EXISTING EQUIPMENT, STRUCTURES, &

GROUNDS:

7.1 The Contractor shall take such precautions as are necessary to prevent damage, discolorations, etc. To existing equipment, structures, and grounds, located directly beneath (interior or exterior) or adjacent to the site of work regardless of their involvement in the project. All equipment, structures, and grounds damaged, discolored, etc., by the Contractor shall be repaired or replaced at no additional cost to the Government.

7.1.1 The Contractor shall provide a temporary covering to protect the building interior and contents during the interim period between the existing roof removal and new roof construction. This covering must remain in place during precipitation and winds up to 50 mph. The Contractor shall be responsible for any damage to the building resulting from his/her failure to provide adequate temporary protection of the exposed roof.

7.1.2 The Contractor shall not damage, in any way, trees, shrubs, lawns, curbs, gutters, walks, sprinklers, or other appurtenances around the work site. No ropes, guys, or cables will be fastened to or attached to any existing trees. Ruts, holes, and depressions will be filled, leveled, and seeded with an approved grass mixture, at no additional cost to the Government.

PART 8.0: SALVAGEABLE MATERIALS: Any salvageable materials or equipment will be listed in each individual Delivery Order. Materials or equipment listed as salvageable shall remain the property of the Government. This material and equipment shall be carefully removed in such a manner to prevent damage and be transported, and turned over to the Government at the base recycling center at the corner of Mexico and Indiana streets.

PART 9.0: MATERIAL SUBMITTALS:

9.1 Ten (10) days after notice to proceed or as established by the Contracting Officer, and before starting installation of any materials or equipment, the Contractor shall submit to the Contracting Officer for approval. Each submittal shall contain an AF Form 3000, Material Approval Submittal and three (3) copies of supporting documents. The submittals shall include manufacturer’s styles or catalog numbers, cuts and other descriptive data including shop drawings to completely describe material proposed for use. Submittals describing material and equipment for any system shall be submitted completely at one time. No consideration will be given by the Contracting Officer for partial or incomplete system submittals. Approval of proposed materials will be based on manufacturer’s published data, laboratory test reports, certifications, catalog cuts, samples, shop drawings, etc. No equipment, material, etc., shall be installed until submittal approval has been obtained. Prior to beginning any work the Contractor shall make all submissions, which might be common to all the work anticipated under this contract. Prior to beginning work under any individual Delivery Order the Contractor shall submit components, which differ or are in addition to those of the basic system(s) approved above. The contractor shall maintain a submittal register and work from it as much as possible. If the Contractor wishes to utilize the material storage area, a submittal requesting permission must be made to the Contracting Officer.

9.2 MATERIAL SAFETY DATA SHEETS (MSDS): The Contractor shall submit MSDS for all potentially hazardous materials to be used during the project. This requirement is IAW AFOSH Standard 161-21, Hazardous Communication, paragraph 5.h

(3) and (6). These submittals are in addition to those listed in the Schedule of Materials Submittals.

PART 10.0: DRAWINGS:

10.1 SUBMITTAL DRAWINGS: If required by the Technical Representative, drawings will be submitted for each Delivery Order that are neat and legible. Roof plans shall be drawn at a minimum of 1/8” = 1 ‘-0” scale. Scale of details and sections shall be per NRCA standard for each. The size and format of all drawings shall be consistent for each Delivery Order and approved prior to the commencement of work.

END OF SECTION 01010

SECTON 02070 - SELECTIVE DEMOLITION

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. General provisions of the Contract, Division 1, apply to this Section.

1.2 SUMMARY

A. This Section includes the following:

1. Demolition and removal of selected portions of a building as indicated by individual Delivery Orders. The Contractor shall deliver all ferrous and non ferrous metals to the Base Recycling Center.

1.3 DEFINITIONS

A. Remove: Remove and legally dispose of items except those indicated to be reinstalled, salvaged, or to remain the Government’s property.

B. Remove and Salvage: Items indicated to be removed and salvaged remain the Government’s property. Remove, clean, and pack or crate items to protect against damage. Identify contents of containers and deliver to Government’s designated storage area.

C. Remove and Reinstall: Remove items indicated; clean, service, and otherwise prepare them for reuse; store and protect against damage. Reinstall items in the same locations or in locations indicated.

D. Existing to Remain: Protect construction indicated to remain against damage and soil during selective demolition. When permitted by the Contracting Officer, items may be removed to a suitable, protected storage location during selective demolition and then cleaned and reinstalled in their original locations.

1.4 MATERIALS OWNERSHIP

A. Except for items or materials indicated to be reused, salvaged, reinstalled, or otherwise indicated to remain the Government’s property, demolished materials shall become the Contractor’s property and shall be removed from the site with further disposition at the Contractor’s option.

B. Historical items indicated remain the Government’s property. Carefully remove and salvage each item in a manner to prevent damage and deliver promptly to the Government.

1.5 SUBMITTALS

A. General: Submit each item in this Article according to the Conditions of the Contract and Division I, for information only, unless otherwise indicated.

B. Proposed dust-control measures.

C. Proposed noise-control measures.

D. Schedule of selective demolition activities indicating the following:

1. Detailed sequence of selective demolition and removal work, with starting and ending dates for each activity.

2. Detailed sequence of selective demolition and removal work to ensure uninterrupted progress of Government’s on-site operations.

E. Inventory of items to be removed and salvaged.

F. Landfill records indicating receipt and acceptance of hazardous wastes by a landfill facility licensed to accept hazardous wastes according to sections 02061 and 02062.

1.6 QUALITY ASSURANCE

A. Demolition Firm Qualifications: Engage an experienced firm that has successfully completed selective demolition Work similar to that indicated for this Project.

B. Regulatory Requirements: Comply with governing EPA notification regulations before starting selective demolition. Comply with hauling and disposal regulations of authorities having jurisdiction.

1.7 PROJECT CONDITIONS

A. Government will occupy portions of the building immediately adjacent to selective demolition area. Conduct selective demolition so that Government’s operations will not be disrupted. Provide not less than 72 hours notice to Government of activities that will affect Government’s operations.

1.8 SCHEDULING

A. Arrange selective demolition schedule so as not to interfere with Government’s on-site operations.

1.9 EXISTING WARRANTY

A. Existing Special Warranty: Remove, replace, patch, and repair materials and surfaces cut or damaged during selective demolition, by methods and with materials so as not to void existing warranties.

PART 2 - PRODUCTS

2.1 REPAIR MATERIALS

A. Use repair materials identical to existing materials.

1. Where identical materials are unavailable or cannot be used for exposed surfaces, use materials that visually match existing adjacent surfaces to the fullest extent possible.

2. Use materials whose installed performance equal or surpasses that of existing materials.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Survey existing conditions and correlate with requirements indicated to determine extent of selective demolition required.

B. Inventory and record the condition of items to be removed and reinstalled and items to be removed and salvaged.

C. When unanticipated mechanical, electrical, or structural elements that conflict with the intended function or design are encountered, investigate and measure the nature and extent of the conflict. Promptly submit a written report to the Contracting Officer.

D. Survey the condition of the building to determine whether removing any element might result in structural deficiency or unplanned collapse of any portion of the structure or adjacent structures during selective demolition.

E. Perform surveys as the Work progresses to detect hazards resulting from selective demolition activities.

3.2 UTILITY SERVICES

A. Maintain existing utilities indicated to remain in service and protect them against damage during selective demolition operations.

1. Do not interrupt existing utilities serving occupied or operating facilities, except when authorized in writing by Government and authorities having jurisdiction.

Provide temporary services during interruptions to existing utilities, as acceptable to Government and to governing authorities.

a. Provide not less than 72 hours’ notice to Government if shutdown of service is required.

3.3 PREPARATION

A. Conduct demolition operations and remove debris to ensure minimum interference with roads, streets, walks, and other adjacent occupied and used facilities.

1. Do not close or obstruct streets, walks, or other adjacent occupied or used facilities without permission from Government and authorities having jurisdiction.

B. Conduct demolition operations to prevent injury to people and damage to adjacent buildings and facilities to remain. Ensure safe passage of people around selective demolition area.

1. Erect temporary protection, such as walks, fences, railings, canopies, and covered passageways, where required by authorities having jurisdiction.

2. Protect existing site improvements, appurtenances, and landscaping to remain.

3. Provide temporary weather protection, during interval between demolition and removal of existing construction, on exterior surfaces and new construction to ensure that no water leakage or damage occurs to structure or interior areas.

4. Protect existing finish work that are to remain and are exposed during selective demolition operations.

C. Provide and maintain interior and exterior shoring, bracing, or structural support to preserve stability and prevent movement, settlement, or collapse of roof to be selectively demolished.

1. Strengthen or add new supports when required during progress of selective demolition.

3.4 POLLUTION CONTROLS

A. Use water mist, temporary enclosures, and other suitable methods to limit the spread of dust and dirt. Comply with governing environmental protection regulations.

1. Do not use water when it may damage existing construction or create hazardous or objectionable conditions, such as ice, flooding, and pollution.

B. Remove and transport debris in a manner that will prevent spillage on adjacent surfaces and areas.

1. Remove debris from elevated portions of building by chute, hoist, or other device that will convey debris to grade level.

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

3.5 SELECTIVE DEMOLITION

A. No more roofing shall be removed than what can be installed in one day.

B. Demolish and remove existing construction only to the extent required by new construction and as indicated. Use methods required to complete Work within limitations of governing regulations and as follows:

1. Proceed with selective demolition systematically, from higher to lower level.

2. Neatly cut openings and holes plumb, square, and true to dimensions required. Use cutting methods least likely to damage construction to remain or adjoining construction. To minimize disturbance of adjacent surfaces, use hand or small power tools designed for sawing or grinding, not hammering and chopping. Temporarily cover openings to remain.

3. Cut or drill from the exposed or finished side into concealed surfaces to avoid marring existing finished surfaces.

4. Do not use cutting torches.

5. Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials and promptly dispose of off-site.

6. Remove structural framing members and lower to ground by method suitable to avoid free fall and to prevent ground impact or dust generation.

7. Locate selective demolition equipment throughout the structure and remove debris and materials so as not to impose excessive loads on supporting walls, floors, or framing.

8. Dispose of demolished items and materials promptly. On-site storage or sale of removed items is prohibited.

9. Return elements of construction and surfaces to remain to condition existing before start of selective demolition operations.

C. It is recommended that the Contractor not remove the existing roof if one or more of the following weather conditions are forecasted for a period of 36 hours after the scheduled removal time. The Contractor shall be responsible for the decision of whether or not to remove the roof according to his best weather advisory.

1. Sustained winds greater than or equal 20 mph.

2. Wind gusts exceeding 25 mph.

3. Any type of precipitation in any amount, including traces.

3.6 PATCHING AND REPAIRS

A. Promptly patch and repair holes and damaged surfaces caused to adjacent construction by selective demolition operations.

B. Where repairs to existing surfaces are required, patch to produce surfaces suitable for new materials.

C. Restore exposed finishes of patched areas and extend finish restoration into adjoining construction to remain in a manner that eliminates evidence of patching and refinishing.

3.7 DISPOSAL OF DEMOLISHED MATERIALS

A. General: Promptly dispose of demolished materials. Do not allow demolished materials to accumulate on-site.

B. Burning: Do not burn demolished materials.

C. Disposal: Transport demolished materials off Government’s property and legally dispose of them.

3.8 CLEANING

A. Sweep clean, pickup, and remove debris from the roof and the areas around the building, within the construction limits to tile same degree as before construction started.

This shall be done at the building completion of selective demolition operations as well as at completion of the total project.

END OF SECTION 02070

SECTION 05400 – LIGHT GAUGE STEEL ROOF TRUSSES/FRAMING

PART 1 – GENERAL

A. General requirements of the Contract, Division I, apply to this Section.

A. This Section includes metal framing in the following categories:

1. Metal roof trusses pre-engineered/manufactured.

2. Purlins, Sub-purlins, vertical framing, base angles for retrofits

4. Anchorage, bracing and bridging.

1.3 PERFORMANCE REQUIREMENTS

A. General: Install framing or retrofit framing to carry metal roof panels and to withstand wind loads, structural movement thermally induced movement, and exposure to weather without failing.

B. Design Loads shall include live load, wind load, snow and dead load of structure and accessories.

1. Dead Load: Weight of structural frame and all other materials of building system.

2. Roof live loads: 20 psf applied in accordance with MBMA-01 Uniform Building Code.

3. Roof snow loads: Use roof snow load of 25lb/sq ft. with provisions for drifting where required. Apply snow load in accordance with Uniform Building Code using an importance factor of 1.0.

4. Wind Loads: Compare and apply wind pressure in accordance with Uniform Building Code using a base wind speed of 90 mph (fastest miles) and importance factor of 1.0.

5. Seismic Loads: Compute for Seismic Zone 2A in accordance with Uniform Building Code using importance factor of 1.0.

6. Vertical Deflection of L/360.

1.4 SUBMITTALS

the Contract and Division 1.

B. Product Data including manufacturer’s material data, installation instructions, and general recommendations for each specified and fabricated product.

C. Shop Drawings of each item specified showing layout, profiles, methods of joining, and anchorage details.

D. 12-inch- (300-mm-) long Samples of factory-fabricated products with specified factory finish.

1.5 QUALITY ASSURANCE

A. Fabricator and installer Qualifications: Engage an experienced Installer who has completed cold-formed metal framing and or truss fabricating with not less than three years experience designing and fabricating cold formed metal trusses or retrofit roof framing equal in material, design and extent to that indicated for these projects and with a record of successful in-service performances.

1.6 DELIVERY

A. Coordinate Work of this Section with interfacing and adjoining Work for proper sequencing of each installation. Ensure best possible weather resistance, durability of Work, and protection of materials and finishes for a period of 2 years minimum.

B. Store trusses on blocking off of ground and in an upright position when possible to avoid damage from bending and over stressing. Protect metal from corrosion, deformation, damage, and deterioration when stored on job site.

During construction, distribute concentrated loads applied to the structure adequately so that carrying capacity on any one structural component is not exceeded.

2.1 MANUFACTURERS

A. Metal Truss . LLC (roof trusses) Rudy St. Knoxville, Tn. 37921 800-628-7877/ 423 637-0350

B. Steelox Roofing Systems (retrofit systems) PO Box 8181 Mason, Ohio 45040 513-573-5200 513-573-5510, Fax E-mail info@steelox.com

C. Berridge Manufacturing Company (retrofit systems) 6515 Fratt Road San Antonio, Tx. 78218 1-800-669-0009 210-650-0379, Fax

2.2 MATERIALS

A. General: if required provide units of type, material required to provide secure interlocking of separate reglet and counter flashing pieces and compatible with existing conditions.

2.3 MISCELLANEOUS MATERIALS AND ACCESSORIES

A. Fabricate truss components of commercial quality steel, ASTM A635 galvanized finish with a minimum yield stress of 45ksi.

B. Bracing, bridging and blocking members: Fabricate components of commercial quality steel ASTM A653 galvanized finish with a minimum yield of 30ksi.

D. Metal framing components: Provide sizes shapes as required.

a. Tracks, purlins channels studs columns: 16Ga., .0598” (1.52mm)

b. Finish: Provide components with protective zinc coating complying with ASTM A653, minimum G60 coating.

E. Fastenings:

1. Hilti self-drilling screws, bolts, nuts and washers with corrosion-resistant plated finish. Fasteners shall be of sufficient size to ensure the strength of the connection.

2. Welding: Comply with AWS D1.1 when applicable and with AWS D1.3 for welding base metals less than 1/8” thick.

2.4 FABRICATION, GENERAL

A. Factory fabricate trusses and accessories plumb, square, true to line with connections securely fastened.

1. Fabricate truss assemblies in jig templates.

2. Cut framing members by sawing or shearing: do not torch cut.

3. Fasten cold-formed metal framing members by screw fastening.

4. Locate mechanical fasteners and install according to cold-formed to cold formed metal framing manufacturer’s instructions with screw penetrating joined members by not less than 3 exposed screw threads.

5. Splicing:

a. Splicing of webs is not permitted.

b. The following procedure must be followed when splicing of chord members is necessary:

1. Splice chord members by using a 24 inch (typ.) piece of chord material the same size and gauge of the chord material being spliced.

2. Attach splice with a minimum of 4 screws each side of the splice. The screw count of the splice is calculated by dividing the forces in the member9see individual truss engineering drawing), by the appropriate screw shear value.

18 gauge-419 lbs/screw.

B. Reinforce, stiffen and brace trusses to withstand handling, delivery, erection stresses. Lift trusses to prevent damage or distortion.

C. Fabrication tolerances: fabricate assemblies to a maximum allowable tolerance variation from plumb, level, and true to a line of 1/8 inch in 10 feet (1:960) and as follows.

1. Spacing: Space individual web members no more than plus or minus 1 inch from plan location. Vertical webs located directly over bearing pints shall be located plus r minus 1/8 inch (3mm) from plan location.

2. Squareness: Fabricate each cold –formed metal framing assembly to a maximum out of square tolerance of 1/8 inch (3mm).

A. Examine structure, substrates and installation conditions. Do not proceed with installation of trusses or framing until satisfactory conditions have been corrected. Trusses should be installed so as to allow complete and adequate contact with connection member at all bearing locations as indicated.

B. Installation constitutes acceptance of existing conditions and responsibility for satisfactory performance.

3.2 INSTALLATION, GENERAL

A. General:

1. Erection of trusses and metal framing components, including proper handling, safety precautions, temporary bracing and other safeguards or procedures are the responsibility of the contractor and contractor’s installer.

2. Exercise care and provide erection bracing required to prevent toppling or dominoeing of framing during erection.

B. Erect trusses with plane of truss webs vertical and parallel to each other accurately located at design spacing as required.

C. Provide proper lifting equipment suited to sizes and types of trusses or framing members applied at lift points recommended by framing or truss fabricator. Exercise care to avoid damage to truss members and joints during erection and to keep horizontal bending of members to a minimum.

D. Provide framing anchors as required or accepted by the engineering community or erection drawings. Anchor trusses or framing members securing at bearing points with 18G seismic/hurricane anchors.

E. Install truss framing and accessories plumb, square, true to line and with connections safely fastened, according to manufacturer’s recommendations.

F. Provide temporary bracing and leave in place until all permanent bracing, framing, and sheathing is in place and securely fastened.

G. Erection Tolerances: install joist and truss framing to a maximum allowable tolerance variation from plumb, level and true. Cumulative error shall not exceed minimum fastening requirements of sheathing or other framing materials.

H. Do not alter, cut or remove framing members or connections of trusses.

I. Align webs of bottom chords and load bearing framing or continuously reinforce track to transfer loads to structure. Anchor trusses securely at all bearing points as indicted.

J. Counter flashings: Coordinate installation of counter flashings with installation of assemblies to be protected by counter flashing. Install counter flashings in reglets or receivers. Secure in a waterproof manner by means of snap-in installation and sealant, lead wedges and sealant, 0 interlocking folded seam, or blind rivets and sealant. Lap counter-flashing joints a minimum of 2 inches (50

mm) and bed with sealant.

END OF SECTION 05400

SECTION 06100 - ROUGH CARPENTRY

1. Wood furring, grounds, nailers, blocking, and framing lumber.

2. Sheathing.

3. Ridge flashing nailers.

A. Rough Carpentry: Carpentry work not specified in other Sections and not exposed, unless otherwise specified.

the Contract and Division I.

B. Product Data for the following products:

1. 1” sheathing.

2. Fasteners.

3. Framing Lumber.

C. Material certificates for dimension lumber specified to comply with minimum allowable unit stresses. Indicate species and grade selected for each use and design values approved by the American Lumber Standards Committee’s (ALSC) Board of Review.

D. Wood treatment data as follows, including chemical treatment manufacturer’s instructions for handling, storing, installing, and finishing treated materials:

1. For each type of preservative-treated wood product, include certification by treating plant stating type of preservative solution and pressure process used, net amount of preservative retained, and compliance with applicable standards.

2. For waterborne-treated products, include statement that moisture content of treated materials was reduced to levels indicated before shipment to Project site.

E. Material test reports from a qualified independent testing agency indicating and interpreting test results relative to compliance of fire-retardant-treated wood products with requirements indicated.

F. Warranty of chemical treatment manufacturer for each type of treatment.

1.5 MEASUREMENT AND PAYMENT

A. If after demolition of roofing material the sheathing is determined to be deteriorated the Contractor shall, after approval by Contracting Officer, replace deteriorated material. Contractor shall include as part of his work the amount indicated by plans. Decking shall be of same thickness as existing.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Keep materials under cover and dry. Protect from weather and contact with damp or wet surfaces. Stack lumber, plywood, and other panels. Provide for air circulation within and around stacks and under temporary coverings.

1. For lumber and plywood pressure treated with waterborne chemicals, place spacers between each bundle to provide air circulation.

PART 2 – PRODUCTS

A. Subject to compliance with requirements, provide products by one of the

1. Wood-Preservative-Treated Materials:

a. Baxter: J. H. Baxter Co.

b. Chemical Specialties, Inc.

c. Continental Wood Preservers, Inc.

d. Hickson Corp.

e. Hoover Treated Wood Products, Inc.

f. Osmose Wood Preserving, Inc.

2.2 LUMBER, GENERAL

A. Lumber Standards: Comply with DOC PS 20, “American Softwood Lumber Standard,” and with applicable grading rules of inspection agencies certified by ALSC’s Board of Review.

B. Where nominal sizes are indicated, provide actual sizes required by DOC PS 20 for moisture content specified. Where actual sizes are indicated, they are minimum dressed sizes for dry lumber.

1. Provide dressed lumber, S2S, unless otherwise indicated.

2. Provide dry lumber with 19 percent maximum moisture content at time of dressing for 2-inch nominal (38-mm actual) thickness or less, unless otherwise indicated. Insure maximum moisture content is 19 percent or lower at time of installation.

2.3 WOOD-PRESERVATIVE-TREATED MATERIALS

A. General: Where lumber or plywood is indicated as preservative treated or is specified to be treated, comply with applicable requirements of A WP A C2 (lumber) and A WP A C9 (plywood). Mark each treated item with the Quality Mark Requirements of an inspection agency approved by ALSC’s Board of Review.

1. Do not use chemicals containing chromium or arsenic.

2. For exposed items indicated to receive stained finish, use chemical formulations that do not bleed through, contain colorants, or otherwise adversely affect finishes.

2.4 DIMENSION LUMBER

A. General: Provide dimension lumber of grades indicated according to the ALSC National Grading Rule (NGR) provisions of the inspection agency indicated.

2.5 BOARDS

A. Concealed Boards: Where boards will be concealed by other work, provide lumber with 19 percent maximum moisture content and of following species and grade:

1. Species and Grade: Eastern softwoods, No.3 Common per NELMA rules.

2. Species and Grade: Northern species, No.3 Common or Standard per NLGA rules.

3. Species and Grade: Mixed southern pine, No.2 per SPIB rules.

4. Species and Grade: Hem. Fir, Standard per WCLIB rules or No.3

Common per WWPA rules.

5. Species and Grade: Spruce-pine-fir, Standard per WCLIB rules or

No.3 Common per WWP A rules.

6. Species and Grade: Western woods, Standard per WCLIB rules or

No.3 Common per WWP A rules.

2.6 MISCELLANEOUS LUMBER

A. General: Provide lumber for support or attachment of other construction, including rooftop equipment curbs and support bases, cant strips, bucks, nailers, blocking, furring, grounds, stripping, and similar members.

B. Fabricate miscellaneous lumber from dimension lumber of sizes indicated and into shapes shown.

C. Moisture Content: 19 percent maximum for lumber items not specified to receive wood preservative treatment.

D. Grade: For dimension lumber sizes, provide No.3 or Standard grade lumber per ALSC’s NGRs of any species. For board-size lumber, provide No.3 Common grade per NELMA, NLGA, or WWP A; No.2 grade per SPIB; or Standard grade per NLGA, WCLIB or WWP A of any species.

2.7 CONCEALED, PERFORMANCE-RATED STRUCTURAL-USE PANELS

A. Roof Sheathing: AP A-rated sheathing.

2.9 FASTENERS

A. General: Provide fasteners of size and type indicated that comply with requirements specified in this Article for material and manufacture.

1. Provide fasteners with a hot-dip zinc coating per ASTM A 153 or of Type 304 stainless steel.

B.…