J.2 STATEMENT OF WORK (25 PAGES).pdf

BLACK HILLS NATIONAL FOREST SCHEDULE OF ITEMS

TEPEE WORK CENTER RANGER’S DWELLING

CHIMNEY AND ROOF REPAIRS PROJECT

BLACK HILLS NATIONAL FOREST

HELL CANYON RANGER DISTRICT

CHIMNEY AND ROOF REPAIRS PROJECT

Schedule of Items

Item No. Description

BASE ITEMS

Method of Measurement Total

BI 1 Mobilization, Demobilization, and Insurance Lump Sum $ BI 2 Chimney Flashing and Roof Repairs Lump Sum $ BI 3 Chimney Patch and Point Lump Sum $_________

BASE TOTAL: $

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GENERAL REQUIREMENTS

SECTION 010150

PART 1 – SUMMARY OF WORK

1.1 DESCRIPTION

A. Work for this project requires the Contractor to be responsible for supplying all labor, materials, equipment, utilities, miscellaneous items, freight and delivery and all necessary valid licenses and permits for the work summarized as follows:

1. Restore watertight roofing system around two (2) chimneys on the old

Ranger’s Dwelling (Building #3515) at the Hell Canyon Ranger District Tepee Work Center. Work for this project will include:

a. Remove roofing material around chimneys to inspect deck sheathing.

b. Repair/replace chimney flashing, counter flashing, step flashing, and downslope side chimney apron.

c. Reinstall roofing system including:

1) Replace sheathing as needed.

2) Construct half cricket on upper sider of chimney

3) Install Ice and water shield underlayment,

4) Install 18” Perfection cedar shingles around chimney and where missing at roof ridge.

d. Tuckpoint two entire chimneys.

1) Remove loose and deteriorated mortar and fill voids with mortar to match existing.

2) Remove and replace concrete cap on top of chimneys.

B. The Hell Canyon Ranger District, Tepee Work Center project is located on the Black Hills National Forest at 10617 Tepee Road, HWY 16, Edgemont, SD 57735, approximately 18 miles west of Custer, South Dakota (See map).

C. Building Information: The Ranger’s Dwelling is a wood structure with cedar shingle roofing and two stone masonry chimneys. The Ranger’s Dwelling was constructed in 1937 by the CCC as a 2,580 sf single family residence, and is an eligible historic structure.

1. There are no as-built drawings or documentation of the Ranger Dwelling construction.

1.2 QUALIFICATONS OF CONTRACTORS

A. All work shall be performed by contractors with experience with performing work on historic structures in conformance with “The Secretary of the Interior’s Standards for the Treatment of Historic Properties with Guidelines for Preserving, Rehabilitating, Restoring & Reconstructing Historic Building.”

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B. All work shall be performed by qualified craftsmen. Craftsmen performing stone masonry work shall hold an International Masonry Institute (IMI) Historic Masonry Preservation Certificate (HMPC) or equal, as approved by Contracting Officer and Black Hills National Forest Cultural/Historic Specialist.

1.3 REFERENCES

A. “The Secretary of the Interior’s Standards for the Treatment of Historic Properties with Guidelines for Preserving, Rehabilitating, Restoring & Reconstructing Historic Building”. (provided)

B. The Secretary of the Interior’s Standards for Rehabilitation (36 CFR 67), section on Building Exterior Masonry. The Secretary of the Interior's Standards for Rehabilitation & Illustrated Guidelines for Rehabilitating Historic Buildings-Masonry (nps.gov)

C. US Department of the Interior, National Park Service, Cultural Resources, Heritage

Preservation Services, Preservation Briefs 2, Repointing Mortar Joints in Historic Masonry Buildings. (provided) Preservation Brief 2: Repointing Mortar Joints in Historic Masonry Buildings (nps.gov)

D. ASTM E 2260-03, Standard Guide for Repointing (Tuck Pointing) Historic Masonry.

1.4 USE OF PREMISES

A. Use of Site: Confine work activity to immediate area of work. Do not disturb portions of Project site beyond areas in which the Work is indicated.

B. Full Government Occupancy: Government will occupy site and buildings during entire construction period. Cooperate with Government during construction operations to minimize conflicts and facilitate Government usage. Perform the work so as not to interfere with Government's day-to-day operations.

C. Driveways and Entrances: Keep roads, parking areas, paths, and entrances clear and available to Government, Government's employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials. Do not close or obstruct parking areas, walkways, or other occupied or used facilities without written permission from Government and authorities having jurisdiction.

D. Public Visitors to Site: The Cement Ridge Lookout is a popular destination along a motorized trail. There are often visitors at the site. Contractor shall keep roads, paths and accessways clear and available to the public unless closure of visitor access is authorized by the Contracting Officer.

1.3 WORK RESTRICTIONS

A. Smoking is not permitted within the buildings or within 25 feet of entrances, operable windows, or outdoor air intakes.

https://www.nps.gov/tps/standards/rehabilitation/rehab/masonry01.htm https://www.nps.gov/tps/standards/rehabilitation/rehab/masonry01.htm https://www.nps.gov/tps/how-to-preserve/briefs/2-repoint-mortar-joints.htm https://www.nps.gov/tps/how-to-preserve/briefs/2-repoint-mortar-joints.htm

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B. The Contractor shall repair existing Forest Service roads, parking areas, and improvements disturbed by work activity. Repair includes any work needed to return the improvements to their existing condition before work activity began.

1.5 CONTRACTOR’S RESPONSIBILITIES

A. Confine storage of materials to areas as approved by the CO.

B. Provide adequate signing and barricades and take necessary safety measures to protect the public during all construction operations. Minimize disturbance of all undisturbed areas.

1.5 FIELD VERIFICATION

A. Field verify all new and existing dimensions affecting the work of this contract before ordering supplies and materials.

PART 2 – DEFINITION OF ITEMS AND PAYMENT

2.1 DESCRIPTION

A. This section explains what is and what is not included in each pay item; the limits or cut-off points where one item ends and another begins; and basis of payment for work items listed in the Schedule of Items.

B. Payment: For each individual item listed here and in the Schedule of Items, payment shall be full compensation for all work related to the particular item in accordance with these specifications, and as shown on the drawings.

2.2 SCHEDULE OF ITEMS

A. Schedule of Items: The project Schedule of Items includes several sections to organize the work into Base Items and Optional Items.

1. Provide pricing for all items listed in the Schedule of Items.

2. Contract award will be made for all Base Items.

B. Base Items (BI):

1. Base Item No. 1 - Mobilization, Demobilization, and Insurance.

a. Measurement: This item is measured as a Lump Sum quantity.

b. Payment: The contract lump sum price shown in the Schedule of Items shall include all materials, equipment, labor, and incidentals required to perform all operations necessary for the movement of personnel, equipment, supplies and incidentals to the project site, and for all other work and operations that must be performed or that cause costs to be

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2. Base Item No. 2 - Chimney Flashing and Roof Repairs.

includes all materials, equipment, demolition, labor, and incidentals required to perform all operations necessary for completion of work as specified and shown in the construction documents.

3. Base Item No. 3 – Patch and Point Two Chimneys includes all materials, equipment, demolition, labor, and incidentals required to perform all operations necessary for completion of work as specified and shown in the construction documents.

PART 3 – ACCIDENT PREVENTION

3.1 DESCRIPTION

A. This section consists of establishing an effective accident prevention plan and providing a safe environment for personnel and visitors.

3.2 SUBMITTALS

A. Accident Prevention Plan: Before on-site work begins, submit a company approved accident prevention plan. This plan will be posted in the contract file. Design the plan to address Federal, State, and Local Occupational Safety and Health requirements that apply to this project. Notice to Proceed will not be made until the plan is received. As a minimum the plan shall include:

1. Name, position title and contact information of company executive responsible for approving the Accident Prevention Plan.

2. Name and contact information of supervisor responsible to carry out the plan.

3. Outline of each phase of the work, the hazards associated with each major phase, and the methods proposed to ensure property protection and safety of the public, government personnel, and the Contractor's employees. Identify the work included under each phase by reference to specification section or division numbers.

4. Contingency plans for emergency situations such as medical, fire, hazard material spills and other contract assessed hazard prevention and abatement requirement needs that apply to this project.

B. Upon request, submit proof of employees' qualifications to perform assigned duties in a safe manner.

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3.3 QUALITY ASSURANCE

A. Clauses entitled "Accident Prevention" and "Permits and Responsibilities" of the General Provisions: In case of conflicts between Federal, state, and local safety and health requirements, the most stringent shall apply. Equipment or tools not meeting OSHA requirements will not be allowed on the project sites. Failure to comply with the requirements of this section and related sections may result in suspension of work.

B. Qualifications of Employees: Ensure employees are physically qualified to perform assigned duties in a safe manner.

3.4 ACCIDENT REPORTING

A. Reportable Accidents: A reportable accident is defined as death, occupational disease, traumatic injury to employees or the public, property damage by accident in excess of $100, and fires. Within 7 calendar days of a reportable accident, fill out and forward to the CO a CA-1 form, which may be obtained from CO.

B. All Other Accidents: Report all accidents to the CO as soon as possible and assist the CO and other officials as required in the investigation of the accident.

3.5 FIRST AID FACILITIES

A. Provide adequate facilities for the number of employees and the type of work at the site.

B. This is a remote work site. Emergency services are not readily available.

C. Running water is not available at the project site. Provide appropriate equipment and supplies to treat injuries and illnesses that may result from the types of risks related to this project, including working with particulates (sand, grit) and caustics (lime, alkalis).

3.6 EMERGENCY INSTRUCTIONS

A. Post telephone numbers and reporting instructions for ambulance, physician, hospital, fire department, and police in conspicuous locations at the work site.

B. Post directions to the site in conspicuous location in order to provide directions to site when summoning emergency services.

C. Keep directions from site to Spearfish hospital and law enforcement centers in all vehicles at the site, to be used in the event of emergency.

D. Cell phones may not be reliable at this remote site.

3.7 ESCAPE ROUTES

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A. Provide and maintain adequate escape routes at all times in accordance with the Life Safety Code (NFPA 101). No corridor, aisle, stairway, door or exit shall be obstructed or used in a manner that interferes with escape routes.

B. Do not interfere with routes and means of escape from the cab of the lookout.

3.8 PROTECTIVE EQUIPMENT

A. Personal Protective Equipment (PPE) shall meet requirements of NIOSH and MSHA, where applicable, as well as ANSI.

B. Inspect personal protective equipment daily and maintain in a serviceable condition.

Clean, sanitize, and repair, as appropriate, personal items before issuing them to another individual.

C. Inspect and maintain other protective equipment and devices before use and on a periodic basis to ensure safe operation.

3.9 SAFETY MEETINGS

A. As a minimum, conduct weekly 15-minute "toolbox" safety meetings. These meetings shall be conducted by a foreman and attended by all construction personnel at the worksite.

3.10 TRAINING

A. First Aid: Provide adequate training to ensure prompt and efficient first aid. Provide first aid supplies to use at the site.

B. Hazardous Material: Train and instruct each employee exposed to hazardous material in safe and approved methods of handling and storage. Hazardous materials are defined as explosive, flammable, poisonous, corrosive, oxidizing, irritating, or otherwise harmful substances that could cause death or injury.

PART 4 – SUBMITTAL PROCEDURES

4.1 PROCEDURES

A. Processing Time: Allow enough time for submittal review, including time for re-submittals, as follows. Time for review shall commence on CO's receipt of submittal.

1. Initial Review: Allow 10 working days for initial review of each submittal. Allow additional time if processing must be delayed to permit coordination with subsequent submittals. CO will advise Contractor when a submittal being processed must be delayed for coordination.

2. If intermediate submittal is necessary, process it in same manner as initial submittal.

3. Allow 10 working days for processing each re-submittal.

4. No extension of the Contract Time will be authorized because of failure to

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B. Identification: Place a permanent label or title block on each submittal for identification.

1. Indicate name of firm or entity that prepared each submittal on label or title block.

2. Provide a space approximately 2 by 3 inches on label or beside title block to record

Contractor's review and approval markings and action taken by CO.

3. Include the following information on label for processing and recording action taken:

a. Project name.

b. Date.

c. Name and address of Contractor.

d. Name of manufacturer.

e. Unique identifier, including revision number.

f. Number and title of appropriate Specification Section.

g. Drawing number and detail references, as appropriate.

h. Other necessary identification.

C. Deviations: Highlight, encircle, or otherwise identify deviations from the

Contract Documents on submittals.

D. Additional Copies: Unless additional copies are required for final submittal, and unless CO observes noncompliance with provisions of the Contract Documents, initial submittal may serve as final submittal.

E. Use for Construction: Use only final submittals with mark indicating action taken by

CO in connection with construction.

F. Review each submittal and check for compliance with the Contract Documents. Note corrections and field dimensions. Mark with approval stamp before submitting to CO.

G. Submittals not required by the Contract Documents will not be reviewed and may be discarded.

4.2 SUBMITTALS

A. General: Prepare and submit Submittals required by individual Specification Sections.

1. Number of Copies: Submit three copies of each submittal, unless otherwise indicated. CO will return two copies. Mark up and retain one returned copy as a Project Record Document.

B. Contractor's Construction Schedule: Provide a construction schedule.

C. Product Data: Collect information into a single submittal for each element of construction and type of product or equipment.

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1. Mark each copy of each submittal to show which products and options are applicable.

4.3 REQUESTS FOR INFORMATION (RFIs)

A. General: Immediately on discovery of the need for additional information or interpretation of the Contract Documents, Contractor shall prepare and submit an RFI in the form specified. RFIs submitted by entities other than the Contractor shall not be accepted.

1. Coordinate and submit RFIs in a prompt manner to avoid delays in

Contractor’s work or work of subcontractors.

2. Include a detailed, legible description of item needing information or interpretation and the following:

a. Project name and number

b. Date

c. Contractor Name and signature

d. RFI number, numbered sequentially

e. RFI subject

f. Specification Section, Drawing number, and detail references, as appropriate.

g. Field dimensions and conditions, as appropriate.

h. Contractor’s suggested resolution. If Contractor’s solution(s) affects the

Contract Time or Contract Sum, Contractor shall state impact in the RFI.

i. Include sketches, descriptions, measurements, photos, Product Data, Shop

Drawings, coordination drawings, and other information necessary to fully describe items needing interpretation. Include dimensions, thicknesses, structural grid references, and details of affected materials, assemblies, and attachments on attached sketches.

3. CO’s Action: CO will review each RFI, determine action required, and respond.

Allow seven (7) working days for CO's response for each RFI. RFIs received by CO after 1:00 p.m. will be considered as received the following working day.

a. The following RFIs will be returned without action:

1) Requests for approval of submittals.

2) Requests for approval of substitutions.

3) Requests for coordination information already indicated in the

Contract.

4) Documents.

5) Requests for adjustments in the Contract Time or the Contract Sum.

6) Requests for interpretation of CO's actions on submittals.

7) Incomplete RFIs or inaccurately prepared RFIs.

b. CO's action may include a request for additional information, in which case CO's time for response will date from time of receipt of additional information.

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c. CO's action on RFIs that may result in a change to the Contract Time or the Contract Sum may be eligible for Contractor to submit Change Proposal according to Contracting Section "Contract Modification Procedures."

1) If Contractor believes the RFI response warrants change in the

Contract Time or the Contract Sum, notify CO in writing within 10 days of receipt of the RFI response.

PART 5– TEMPORARY FACILITIES AND CONTROLS

5.1 DESCRIPTION

A. This section consists of requirements for temporary facilities and controls, including utilities, support facilities, and security and protection facilities.

5.2 UTILITIES

A. Sanitary Facilities: Use of Government sanitary facilities will be permitted, as long as facilities are cleaned and maintained in a condition acceptable to CO. At Substantial Completion, restore these facilities to condition existing before initial use.

B. Electric Power: There is no electric power at the project site. Contractor shall be responsible for providing portable generator or other means of temporary power needed for project, as approve by Contracting Officer. Operation and maintenance of such temporary power shall follow applicable federal and state regulations, including by not limited to EPA and OSHA regulations, C. Telephone Service: The Contractor is responsible for providing telephone service deemed necessary for the duration of the construction. Cellular phone service at the project site is not reliable.

5.3 DELIVERY, STORAGE, AND HANDLING

A. Contractor shall be responsible for providing secure storage facilities for materials, equipment and supplies. Confine storage to areas approved by the CO.. Forest Service will not be responsible for security of Contractor equipment, materials, supplies or other items at the work site.

1. Contractor is advised that theft and vandalism at the site has occurred during past work at the site.

B. Deliver materials and supplies to site, marked with Contractor name and project identifiers.

C. Locate temporary construction and support facilities for easy access and to avoid conflict with existing Government operations.

5.4 CONSTRUCTION WASTE DISPOSAL FACILITIES

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A. Provide waste-collection containers in sizes adequate to handle waste from work activity. Containerize and clearly label hazardous, dangerous, or unsanitary waste materials separately from other waste.

B. Do not burn waste materials.

C. Transport waste materials off Government property and legally dispose of them.

5.5 SECURITY AND PROTECTION

A. Environmental Protection: Provide protection, operate temporary facilities, and conduct construction in ways and by methods that comply with environmental regulations and that minimize possible air, waterway, and subsoil contamination or pollution or other undesirable effects.

B. Avoid use of substances that contribute to indoor air quality deterioration. Provide Safety Data Sheets for all substances upon request of CO.

C. Fire Protection:

1. Store combustible materials in containers in fire-safe locations.

2. Maintain unobstructed access to fire extinguishers, stairways, and other access routes for firefighting. Prohibit smoking in hazardous fire-exposure areas.

3. Prohibit smoking within government facilities and within 25 feet of existing building.

D. The contractor shall install and maintain suitable barriers and warning signs to ensure the protection of the public, employees and facilities. Fence, barricade, or otherwise block off the immediate work area to prevent unauthorized entry to the work area. Material for barriers and signs may be new or used but shall be suitable for intended purpose. Barriers shall be structurally adequate and neat in appearance.

PART 6 – EXECUTION REQUIREMENTS

6.1 DESCRIPTION

A. This section consists of general procedural requirements governing execution of the Work including, but not limited to, the following:

1. Schedule.

2. Examination.

3. Execution.

4. Progress cleaning.

5. Correction of the Work.

6.2 SCHEDULE

A. Occupied Work Area: Work will be performed at an occupied and functioning

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Government facility which has high visitor traffic.

B. Schedule: Contractor shall submit Proposed Schedule to CO.

C. Completion: Contractor shall notify CO upon completion of work. Upon such notification, CO shall within 2 business days perform inspection of work. Deficiencies identified by inspection shall be corrected by Contractor, reinspected, and when satisfactory, will be accepted by Government.

6.3 EXAMINATION

A. Existing Conditions: Before beginning work, investigate and verify the existing conditions affecting the Work.

B. Acceptance of Conditions: Examine areas, and conditions, with Contractor.

Record observations.

1. Verify compatibility with and suitability of substrates, including compatibility with existing materials.

2. Proceed with Work only after unsatisfactory conditions have been addressed.

Proceeding with the Work indicates acceptance of surfaces and conditions.

6.4 PREPARATION

A. Field Measurements: Take field measurements as required to fit the Work properly.

B. Review of Contract Documents and Field Conditions: Immediately on discovery of the need for clarification of the Contract Documents, submit a request for information to CO. Include a detailed description of problem encountered, together with recommendations for changing the Contract Documents.

C. Verification: Before proceeding with Work, verify information shown on project

Documents in relation to actual conditions. If discrepancies are discovered, notify CO promptly.

6.5 INSTALLATION

A. General: Locate the Work and components of the Work accurately, in correct alignment and elevation, as indicated.

B. Comply with requirements of “The Secretary of the Interior’s Standards for the Treatment of Historic Properties with Guidelines for Preserving, Rehabilitating, Restoring & Reconstructing Historic Building” for conformance with historic preservation work requirements.

C. Execute work at time and under conditions that will ensure the best possible results.

D. Conduct construction operations so no part of the Work is subjected to damaging

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Allow for building movement, including thermal expansion and contraction.

E. Do not use products, cleaners, and installation materials that are considered hazardous.

F. Do not use abrasive, scraping, or other work methods that will damage historic rock structure or other components of historic lookout building and site.

6.6 PROGRESS CLEANING

A. General: Clean Project site and work areas daily, including common areas. Dispose of materials lawfully.

1. Remove combustible waste from site daily.

2. Do not hold materials more than 7 days during normal weather or 3 days if the temperature is expected to rise above 80 deg F (27 deg C).

3. Containerize hazardous and unsanitary waste materials separately from other waste. Mark containers appropriately and dispose of legally, according to regulations.

B. Site: Maintain Project site free of waste materials and debris.

C. Work Areas: Clean areas where work is in progress to the level of cleanliness necessary for proper execution of the Work.

D. Waste Disposal: Burying or burning waste materials on-site will not be permitted.

Washing waste materials down sewers or into waterways will not be permitted.

6.7 PROTECTION OF INSTALLED CONSTRUCTION

A. Provide final protection and maintain conditions that ensure Work is clean and without damage or deterioration at time of Acceptance by Government.

B. Limiting Exposures: Supervise construction operations to assure that no part of the construction completed or in progress is subject to harmful, dangerous, damaging, or otherwise deleterious exposure during the construction period.

6.8 CORRECTION OF THE WORK

A. Repair or remove and replace defective construction. Restore damaged substrates and finishes.

1. Repairing includes replacing defective parts, refinishing damaged surfaces, touching up with matching materials, and properly adjusting operating equipment.

B. Restore permanent facilities used during construction to their specified condition, following requirements of “The Secretary of the Interior’s Standards for the Treatment

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PART 7 – CLOSEOUT PROCEDURES

7.1 DESCRIPTION

A. This section consists of administrative and procedural requirements for contract closeout, including, but not limited to, the following:

1. Inspection procedures.

2. Project Record Documents.

3. Final cleaning.

7.2 SUBSTANTIAL COMPLETION

A. Inspection: Submit a written request for inspection for Substantial Completion. On receipt of request, CO will either proceed with inspection or notify Contractor of unfulfilled requirements. CO will prepare the Certificate of Substantial Completion after inspection or will notify Contractor of items, either on Contractor's list or additional items identified by CO, that must be completed or corrected before certificate will be issued.

1. Reinspection: Request reinspection when the Work identified in previous inspections as incomplete is completed or corrected.

2. Results of completed inspection will form the basis of requirements for

Final Completion.

7.3 FINAL COMPLETION

A. Preliminary Procedures: Before requesting final inspection for determining date of Final Completion, complete the following:

1. Submit certified copy of CO’s Substantial Completion inspection list of items to be completed or corrected (punch list), endorsed and dated by CO. The certified copy of the list shall state that each item has been completed or otherwise resolved for acceptance.

2. Submit evidence of final, continuing insurance coverage complying with insurance requirements.

3. Instruct Government personnel in operation, adjustment, and maintenance of products, equipment, and systems.

B. Inspection: Submit a written request for final inspection for acceptance. On receipt of request, CO will either proceed with inspection or notify Contractor of unfulfilled requirements. CO will prepare a final Certificate for Payment after inspection or will notify Contractor of construction that must be completed or corrected before certificate will be issued.

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1. Reinspection: Request reinspection when the Work identified in previous inspections as incomplete is completed or corrected.

7.4 FINAL CLEANING

A. General: Provide final cleaning. Conduct cleaning and waste-removal operations to comply with local laws and ordinances and Federal and local environmental and antipollution regulations.

B. Cleaning Agents: Use non-abrasive cleaning materials and agents in accordance with

“The Secretary of the Interior’s Standards for the Treatment of Historic Properties with Guidelines for Preserving, Rehabilitating, Restoring & Reconstructing Historic Building.” Cleaning shall not damage existing stone, stone structure, or historic materials, building, or site features. Do not use cleaning agents that are potentially hazardous to health or property or that might damage finished surfaces.

C. Complete the following cleaning operations before requesting inspection for certification of Substantial Completion for entire Project or for a portion of Project:

1. Clean Project site and areas disturbed by construction activities of rubbish, waste material, litter, and other foreign substances.

2. Remove tools, construction equipment, machinery, and surplus material from Project site.

3. Clean exposed hard-surfaced finishes to a dirt-free condition, free of stains, films, and similar foreign substances. Restore reflective surfaces to their original condition.

4. Remove debris and surface dust from work area and adjacent areas affected by work.

D. Comply with safety standards for cleaning. Do not burn waste materials. Do not bury debris or excess materials on Government property. Do not discharge volatile, harmful, or dangerous materials into drainage systems. Remove waste materials from Project site and dispose of lawfully.

PART 8 – QUALITY REQUIREMENTS

8.1 DESCRIPTION

A. This section includes administrative and procedural requirements for quality assurance and quality control.

B. The Contractor is responsible for compliance with the Contract Document requirements, and quality control procedures that facilitate compliance with Contract Document requirements.

8.2 CONFLICTING REQUIREMENTS

A. General: If compliance with two or more standards is specified and the standards establish different or conflicting requirements for minimum quantities or quality levels, CHIMNEY AND ROOF REPAIRS PROJECT

010150 – 17 comply with the most stringent requirement. Refer uncertainties and requirements that are different, but apparently equal, to CO for a decision before proceeding.

B. Minimum Quantity or Quality Levels: The quantity or quality level shown or specified shall be the minimum provided or performed. The actual installation may comply exactly with the minimum quantity or quality specified, or it may exceed the minimum with reasonable limits. The Contractor is responsible for verifying measurements and quantities prior to starting work. Refer uncertainties to CO for a decision before proceeding.

8.3 QUALITY CONTROL

A. General: The quality of all work shall be the responsibility of the Contractor.

B. Inspect all work often enough to ensure that the quality of materials, workmanship, construction, finish, and functional performance is in compliance with applicable specifications and drawings. Failure to inspect work often enough does not relieve Contractor of responsibility of redoing work to achieve an acceptable level of quality of work being performed.

C. Reinspecting: Regardless of whether original inspections were Contractor's responsibility, The Contractor is responsible for notifying the CO for reinspection of work that failed to comply with requirements established by the Contract Documents.

D. Enforcement: The Contractor shall stop work on any item or feature pending satisfactory correction of any deficiency noted by the CO.

8.4 REPAIR AND PROTECTION

A. General: On completion of testing, inspecting, sample taking, and similar services, repair damaged construction and restore substrates and finishes.

B. Restore patched areas and extend restoration into adjoining areas in a manner that eliminates evidence of patching.

END OF SECTION 010150

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HISTORIC STONE MASONRY

REPOINTING

SECTION 040343

HISTORIC STONE MASONRY REPOINTING

PART 1 - GENERAL

1.1 SUMMARY

A. Section includes historic treatment work consisting of repointing stone masonry joints.

B. Related Requirements:

1. The Secretary of the Interior’s Standards for the Treatment of Historic Properties with

Guidelines for Preserving, Rehabilitating, Restoring & Reconstructing Historic Buildings (copy provided as electronic attachment).

1.2 DEFINITIONS

A. Low-Pressure Spray:

1. Pressure: 100 to 400 psi (690 to 2750 kPa)

2. Flow Rate: 4 to 6 gpm (0.25 to 0.4L/s).

1.3 PREINSTALLATION MEETINGS

A. Preinstallation Conference: Conduct conference on historic masonry repair and repointing at Tepee Work Center, 10617 Tepee Road, HWY 16, Edgemont, SD 57735.

1. Review methods and procedures related to masonry historic treatment and repointing historic stone masonry.

1.4 ACTION SUBMITTALS

A. Product Data: For each type of product.

B. Samples:

1. Sample of proposed sand showing color and gradation. This submittal is for initial comment only, and its approval will no relieve Contractor of liability for providing acceptable sand within final approved cured mortar.

2. Cured mortar sample sufficient in size to show color, texture, and other salient features affecting mortar’s final appearance

1.5 QUALITY ASSURANCE

A. Historic Treatment Specialist Qualifications: A qualified historic masonry repointing specialist. Experience in pointing or repointing only new or non-historic masonry is insufficient experience for masonry historic treatment work.

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B. Mockups: Prepare mockups of historic treatment on existing surface to demonstrate aesthetic effects and to set quality standards for materials and execution.

1. Perform raking and repointing procedures in less conspicuous areas as directed. Each procedure shall be of sufficient size to show success at repointing and mortar color, texture, tooling, and overall workmanship (approximately 10 square feet of wall area for repointing). If rejected, area(s) shall be removed with procedure repeated at no additional cost to the Government until they meet the approval of Contracting Officer.

Upon approval, each area shall serve as the quality standard for acceptance of all similar work.

1.6 PROJECT CONDITIONS

A. Do not repoint when air or wind chill temperature is below 40 degrees F, unless approved means are provided to protect work from wind, cold, frost, and ensure that mortar will harden and cure without freezing.

PART 2 - PRODUCTS

2.1 MORTAR MATERIALS

A. Portland Cement: ASTM C150/C150M, Type I or Type II; white and gray, non-staining where required for color matching of mortar.

1. Provide cement containing not more than 0.60 percent total alkali and not more than

0.03 percent water soluble alkali by weight when tested according to ASTM C114.

B. Hydrated Lime: ASTM C207, Type S, hydrated, high plasticity.

C. Mortar Sand: ASTM C144 unless otherwise indicated.

1. Match size, texture, and gradation of existing mortar sand as closely as possible.

Blend several sands if necessary to achieve suitable match.

2. Clean, sharp, washed, free of loam, silt and vegetable. Match existing in color, texture and gradation.

3. Color: Natural sand or ground marble, granite, or other sound stone of color necessary to produce required mortar color.

D. Water: ASTM C270, clean and potable.

E. Proportions:

1. 1 part Portland Cement, 1 part Lime, 6 parts Sand

2. The Government reserves the right to modify this formula prior to and during the execution of this contract.

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F. Color: Match existing through the relative proportions of white to gray Portland Cement and color of sand.

2.2 CLEANING MATERIALS

A. Stiff bristle brush and clean, potable water for final cleaning of mortar residue.

PART 3 - EXECUTION

3.1 PROTECTION

A. Prevent mortar from staining face of surrounding stone and other surfaces.

B. Do NOT remove or disturb grounding wire and components of grounding system. Work around these features.

C. Remove associated hardware adjacent to immediate work area and store during stone repointing work. Reinstall when repointing is complete.

1. Provide temporary rain drainage during work to direct water away from building.

3.2 STONE REPOINTING, GENERAL

A. Have repointing work performed only by qualified historic treatment specialist.

3.3 MIXING MORTAR

A. Thoroughly mix all materials dry. Just before executing masonry work, add only enough water to make a stiff workable mortar. To ensure complete hydration, thoroughly mix. Use mortar within 90 minutes of final mixture, or shorter time as necessary to prevent pre-mature hardening or mortar. Use of admixtures or antifreeze chemicals will not be allowed. Do not retemper mortar.

3.4 REPOINTING

A. Rake out and repoint joints to the following extent:

1. All joints in areas indicated.

2. Joints at locations of the following defects:

a. Holes and missing mortar.

b. Cracks that can be penetrated 1/4 inch (6 mm) or more by a knife blade 0.027 inch (0.7 mm) thick.

c. Cracks 1/8 inch (3mm) or more in width and of any depth.

d. Hollow-sounding joints when tapped by metal object.

e. Eroded surfaces 1/4 inch (6 mm) or more deep.

f. Deterioration to point that mortar can be easily removed by hand, without tools.

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g. Joints filled with substances other than mortar.

B. Do not rake out and repoint joints where not required.

C. Rake out joints as follows, according to procedures demonstrated in approved mockup:

1. Rake out loose and deteriorated mortar to a depth not less than that required to expose sound, unweathered mortar, or as directed by Contracting Officer. Flush raked out joints and other wall voids and cracks with clean water or compressed air.

2. Do not remove unsound mortar more than 1 inch deep; consult Contracting Officer for direction.

3. Remove mortar from stone surfaces within raked-out joints to provide reveals with square backs and to expose stone for contact with pointing mortar. Brush, vacuum, or flush joints to remove dirt and loose debris.

4. Do not spall edges of stone units or widen joints. Replace or patch damaged stone units as directed by Contracting Officer.

a. Cut out mortar by hand with chisel and resilient mallet. Do not use power-operated grinders without Contracting Officer’s written approval.

b. Cut out center of mortar bed joints using angle grinders with diamond-impregnated metal blades. Remove remaining mortar in bed joints and mortar in head joints by hand with chisel and resilient mallet. Strictly adhere to approved quality-control program.

D. Notify Contracting Officer of unforeseen detrimental conditions, including voids in mortar joints, cracks, loose stone, rotted wood, rusted metal, and other deteriorated items.

E. Repointing with Mortar:

1. Rinse joint surfaces with water to remove dust and mortar particles. Time rinsing application so, at time of pointing, joint surfaces are damp but free of standing water.

If rinse water dries, dampen joint surfaces before pointing.

2. Apply pointing mortar first to areas where existing mortar was removed to depths greater than surrounding areas. Apply in layers not greater than 3/8 inch ((9 mm) until a uniform depth is formed. Fully compact each layer thoroughly and allow it to become thumbprint hard before applying next layer.

3. After deep areas have been filled to same depth as remaining joints, point joints by placing mortar in layers not greater than 1/8 inch ((9 mm). Fully compact each layer and allow it to become thumbprint hard before applying next layer. Where existing stone has worn or rounded edges, slightly recess finished mortar surface below face of stone to avoid widened joint faces. Take care not to spread mortar beyond joint edges onto exposed stone surfaces or to featheredge the mortar.

4. When mortar is thumbprint hard, tool joints to match original appearance of joints as demonstrated in approved mockup. Remove excess mortar from edge of joint by brushing.

5. Cure mortar by maintaining in thoroughly damp condition for at least 72 consecutive hours, including weekends and holidays.

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6. Hairline cracking within the mortar or mortar separation at edge of a joint is unacceptable. Remove mortar and repoint.

F. Where repointing work precedes cleaning of existing stone, allow mortar to harden at least 30 days before beginning cleaning work.

3.5 FINAL CLEANING

A. Perform masonry work with mortar sufficiently dry as to avoid smearing during final tooling. Protect adjacent work as required. Remove mortar droppings as soon as possible, but do not smear across face of stone. Allow final residue to dry prior to removal with stiff bristle brush and water.

1. Do not use metal scrapers or brushes

2. Do not use acidic or alkaline cleaners.

END OF SECTION 040343

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WOOD SHINGLES AND SHAKES

SECTION 073129

PART 1 – GENERAL

1.1 SUMMARY

A. Section Includes:

1. Wood roof shingles.

2. Underlayment materials.

3. Metal flashing and trim.

1.2 DEFINITION

B. Shingles are sawn on both sides.

1.3 SUBMITTALS

A. Product Data: For the following:

1. Wood roof shingles.

2. Underlayment materials.

3. Drainage mat.

B. Samples: For each exposed product

1.4 QUALITY ASSURANCE

A. Grading Agency Qualifications: An independent testing and inspecting agency recognized by authorities having jurisdiction as qualified to label wood products for compliance with referenced grading rules.

1.5 WARRANTY

A. Materials Warranty: Manufacturer's warranty administered by CSSB and on CSSB's standard form in which manufacturer agrees to repair or replace CSSB-labeled products that fail in materials within specified warranty period. Material failures include manufacturing defects that result in leaks.

1. Materials Warranty Period: Limited lifetime from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Exterior Fire-Test Exposure: Provide roofing materials identical to those of assemblies tested for fire resistance in accordance with ASTM E108 or UL 790 by Underwriters Laboratories or another testing and inspecting agency acceptable to authorities having jurisdiction. Identify products with appropriate markings of applicable testing agency.

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1. Wood Products: Class B.

a. Fire-Retardant Treatment: Exterior-type pressure treatment complying with AWPA U1 and AWPA T1.

b. Accelerated Weathering: Subject test specimens to ASTM D2898 Method A before testing.

c. Identification: Attach a label to each bundle of wood products; include identification mark of testing agency acceptable to authorities having jurisdiction and identify manufacturer, chemical treatment, method of application, purpose of treatment, and warranties available.

B. Decay Resistance: Provide wood products treated in accordance with AWPA U1 and AWPA T1, chromated copper arsenate (CCA) pressure treatment; with a minimum of 0.40-lb/cu. ft. (6.4-kg/cu. m) retention.

1. Identification: Attach a label to each bundle of wood products; identify manufacturer, chemical treatment, method of application, purpose of treatment, and warranties available.

C. Grading Rules: Provide wood products that comply with CSSB grading rules for products indicated.

1. Identification: Attach a label to each bundle of wood products that identifies manufacturer, type of product, grade, dimensions, and identification mark of grading agency acceptable to authorities having jurisdiction.

2.2 WOOD ROOF SHINGLES

A. Cedar Shingles: Smooth-sawn western red cedar shingles.

1. Grade: No. 1, with starter courses of No. 1.

2. Size: 18 inches (457 mm) long; 0.45 inch (11 mm) thick at butt.

B. Cedar Shingle Ridge Units: Manufactured, smooth-sawn western red cedar caps for ridges and hips of same thickness as shingles, 7 inches (178 mm) wide; beveled, alternately overlapped, and nailed.

1. Grade: No. 1.

2. Length: 18 inches (457 mm).

2.3 UNDERLAYMENT MATERIALS

A. Felt: Asphalt-saturated organic felts, nonperforated and complying with the following:

1. ASTM D226/D226M: Type II.

B. Self-Adhering, Polymer-Modified Bitumen Sheet: ASTM D1970/D1970M, minimum 40-mil- (1.0-mm-) thick sheet; glass-fiber-mat-reinforced, polymer-modified asphalt; with slip-resistant top surface and release backing; cold applied.

2.4 ACCESSORIES

A. Asphalt Roofing Cement: ASTM D4586/D4586M Type II, asbestos free.

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B. Elastomeric Flashing Sealant: ASTM C920, Type S, Grade NS, one-part, non-sag, elastomeric polymer sealant; of class and use classifications required to seal joints and remain watertight;

recommended in writing by manufacturer for installation of flashing systems.

C. Drainage Mat: Manufacturer's standard, compression-resisting, three-dimensional, nonwoven, entangled filament, nylon mat designed to permit air movement and to drain incidental moisture by gravity.

D. Roofing Nails: ASTM F1667, stainless steel, hot-dip galvanized-steel, or aluminum box-type wire nails, sharp pointed, and of sufficient length to penetrate a minimum of 3/4 inch (19 mm) into sheathing or to penetrate through roof sheathing less than 3/4 inch (19 mm) thick.

1. Where nails are in contact with metal flashing, use nails made from same metal as flashing.

E. Underlayment Nails: Aluminum, stainless steel, or hot-dip galvanized-steel wire nails with low-profile metal or plastic caps, 1-inch- (25-mm-) minimum diameter.

2.5 METAL FLASHING AND TRIM

A Fabricate sheet metal flashing and trim to comply with recommendations in SMACNA's "Architectural Sheet Metal Manual" that apply to design, dimensions, metal, and other characteristics of the item unless otherwise indicated on Drawings.

PART 3 - EXECUTION

3.1 INSTALLATION OF UNDERLAYMENT MATERIALS

A. Comply with underlayment manufacturer's written installation instructions and with recommendations in CSSB's "New Roof Construction Manual" and NRCA's "The NRCA Roofing Manual: Steep-Slope Roof Systems" applicable to products and applications indicated unless more stringent requirements are specified in the Section or indicated on Drawings.

B. Felt: Install on roof deck parallel with and starting at eaves and fasten with underlayment nails.

1. Single-Layer Installation:

a. Lap sides a minimum of 2 inches (51 mm) over underlying course.

b. Lap ends a minimum of 4 inches (102 mm).

c. Stagger end laps between succeeding courses at least 72 inches (1829 mm).

2. Install felt underlayment on roof deck not covered by self-adhering, polymer-modified bitumen sheet.

a. Lap sides of felt over self-adhering sheet not less than 4 inches (102 mm) in direction that sheds water.

b. Lap ends of felt not less than 6 inches (152 mm) over self-adhering sheet.

C. Self-Adhering, Polymer-Modified Bitumen Sheet: Install, wrinkle free, on roof deck in locations indicated on Drawings.

1. Comply with low-temperature installation restrictions of underlayment manufacturer.

2. Install lapped in direction that sheds water.

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3. Lap sides not less than 4 inches (102 mm). Lap ends not less than 6 inches (152 mm), staggered 24 inches (610 mm) between succeeding courses.

4. Roll laps with roller.

5. Cover underlayment within seven days.

3.2 INSTALLATION OF METAL FLASHING AND TRIM

A. Install metal flashings in accordance with recommendations for wood roofing in NRCA's "The NRCA Roofing Manual: Steep-Slope Roof Systems."

3.3 INSTALLATION OF WOOD ROOF SHINGLES

A. Install wood roof shingles in accordance with manufacturer's written instructions and recommendations in CSSB's "New Roof Construction Manual" and NRCA's "The NRCA Roofing Manual: Steep-Slope Roofing Systems."

B. Install drainage mat perpendicular to roof slope in parallel courses, butting edges and ends to form a continuous layer, and fasten to roof deck.

C. Install wood-shingle starter course along lowest roof edge.

1. Install in single layer.

2. Extend inch (25 mm) over fascia.

3. Extend inch (25 mm) over rake edge.

D. Install first course of wood roof shingles directly over starter course and in continuous straight-line courses across roof deck. Install second and succeeding courses of wood roof shingles in continuous straight-line courses across roof deck.

1. Extend 1 inch (25 mm) over rake edge.

2. Offset joints between shingles in succeeding courses a minimum of 1-1/2 inches (38 mm).

Do not align vertical joints in alternate courses.

3. Space shingles a minimum of 1/4 inch (6 mm) and a maximum of 3/8 inch (10 mm) apart.

4. Maintain weather exposure of 5-1/2 inches (140 mm) for 18-inch long shingles.

E. Open Valleys: Cut and fit wood roof shingles at open valleys, trimming upper concealed corners of shingles. Maintain uniform width of exposed open valley from highest to lowest point.

D. Ridge Vents: Install continuous ridge vents over wood roof shingles in accordance with manufacturer's written instructions. Fasten with roofing nails of sufficient length to penetrate roof sheathing.

END OF SECTION 073129