B08_Att_1_SOW_Replace_Roof_Surfaces_DEWA.pdf

STATEMENT OF WORK

Roof Replacement – Dingmans School (North Zone) and Jackson House (South Zone) Delaware Water Gap National Recreation Area

SUMMARY OF WORK

PART 1: GENERAL

1.1 WORK INCLUDES:

This project includes roof replacement work on two Delaware Water Gap National Recreation Area structures: Dingmans School (North Zone) and Jackson House (South Zone).

Dingmans School (North Zone) Dingmans School (North Zone) is a facility eligible for the National Register of Historic Places and is occupied by National Park Service park rangers serving as the Pennsylvania North Zone District Office. The facility is critical for the administrative functions of the Protection Division and also serves as a visitor information station.

This project will remove the existing roofing surface, flashing, underlayment, associated fasteners, and approximately 2,400 square feet of fibrous cement roof tile and approximately 150 square feet of rolled roofing material. Existing roofing materials shall be tested for asbestos prior to demolition activities.

The project includes installation of new in-kind roofing materials, self-sealing ice and water shield underlayment, drip edges, flashing around valleys, chimneys, attic ventilation penetrations, pergola connections, and vent piping. The Contractor shall install new roof boots around all vent pipes and provide new copper snow rakes.

Selective replacement of damaged roof decking and sheathing shall be completed as needed, estimated at up to 50 percent, using in-kind materials matching the existing dimensions and species.

Selective replacement of eave and rake fascia/soffit will be performed as needed.

Replacement of fascia and rake moldings shall be completed as required. Estimate quantities are for informational purposes only; the Contractor shall verify all measurements in the field prior to execution of work.

All replacement carpentry work shall match existing profile, dimensions, detailing, and wood species. Contractor shall obtain field measurements and verify dimensions and details prior to fabrication and installation of carpentry components.

If carpentry repairs are required, all new exposed woodwork, fascia, rake moldings, soffit, frieze, and trim shall be primed and painted. Work shall include sanding surfaces smooth, filling nail and fastener holes, touch-up painting on repaired woodwork, matching tooling marks in paint using brush application methods, and protecting adjacent unpainted surfaces during painting operations.

The Contractor shall be responsible for matching existing paint colors and textures and shall submit manufacturer specifications, Safety Data Sheets (SDS), color samples, and color formulas for approval prior to beginning painting operations.

The existing roof currently contains loose roofing materials sliding from the roof surface, creating a potential hazard to personnel and Government property. Replacement of the roof system will improve weather resistance, operational reliability, energy efficiency, and reduce heating loss from the structure.

The roof area has an approximate 9:12 pitch.

Jackson House (South Zone) Jackson House (South Zone) has approximately 2,536 square feet of slate tile roofing. The Cornelia Jackson House was originally constructed in 1940 and is still wearing the original slate roof, making the roofing system more than 80 years old.

The building is essential for Delaware Water Gap National Recreation Area law enforcement operations and is utilized year-round by six Law Enforcement Rangers. The facility is critical for the administrative functions of the Protection Division and also serves as a visitor information station.

This project will remove the existing slate roof system, flashing, underlayment, associated fasteners, and approximately 2,250 square feet of slate roofing materials. The work includes installation of new in-kind slate roofing materials, approximately 150 linear feet of copper flashing, approximately 100 linear feet of copper ridge cap, and new self-sealing ice and water shield underlayment.

The project also includes installation of new copper gutters and snow rakes and replacement of the existing failed aluminum K-style gutters. Flashing replacement shall include all valleys, chimneys, vent penetrations, and roof transitions. New boots shall be installed around all vent piping.

Selective replacement of damaged roof decking and sheathing shall be completed as needed, estimated at up to 50 percent, using in-kind materials matching existing dimensions and species.

Selective replacement of eave and rake fascia/soffit will be performed as needed.

Replacement of fascia and rake moldings shall be completed as required. Estimate quantities are for informational purposes only; the Contractor shall verify all measurements in the field prior to execution of work.

All replacement carpentry work shall match existing profile, dimensions, detailing, and wood species. Contractor shall obtain field measurements and verify dimensions and details prior to fabrication and installation of carpentry components.

If carpentry repairs are required, all new exposed woodwork, fascia, rake moldings, soffit, frieze, and trim shall be primed and painted. Work shall include sanding surfaces smooth, filling nail and fastener holes, touch-up painting on repaired woodwork, matching tooling marks in paint using brush application methods, and protecting adjacent unpainted surfaces during painting operations.

The Contractor shall be responsible for matching existing paint colors and textures and shall submit manufacturer specifications, Safety Data Sheets (SDS), color samples, and color formulas for approval prior to beginning painting operations.

The roof currently contains loose and deteriorated slate creating a potential hazard to personnel and Government property. This roof must be replaced prior to catastrophic failure. Replacement of the roof system will improve building protection, operational reliability, and energy efficiency while preserving the historic integrity of the structure.

The roof area has an approximate 11:12 pitch.

All materials and workmanship with new materials shall comply with Department of the Interior (DOI) and National Park Service (NPS) historic preservation standards.

1.2 LOCATION:

Dingmans School (North Zone) 978 Route 209 Dingmans Ferry, PA 18328

Jackson House (South Zone) 6210 Milford Road East Stroudsburg, PA 18302

CONSTRUCTION FACILITIES

PART 1: GENERAL

1.1 SCAFFOLDING AND STAGING

• General: If necessary, provide, erect, and maintain complete scaffolding and staging systems sufficient for the safe completion of the work of this Contract.

• Legal Requirements: Comply with Occupational Safety and Health Administration (OSHA) requirements and all applicable federal, state, and local laws, codes, regulations, and controls for erection and maintenance of scaffolding systems.

• Anchoring and Support: Anchoring scaffold systems to the structures through the use of bolts, cutting, or boring into the existing buildings is prohibited.

• Ladders: All ladders shall be maintained in good condition with proper anchoring and supports so roofs, siding, and historic materials are not damaged. Ladders shall comply with all current OSHA ladder safety requirements.

1.2 STORAGE FACILITIES

• Contractor shall provide temporary storage facilities for equipment and materials.

• Remove all temporary structures and surplus stored materials upon completion of work.

• Contractor shall provide suitable storage for combustible and flammable materials.

• Vehicles within Delaware Water Gap National Recreation Area shall be kept to a minimum.

• Contractor shall be restricted to one vehicle within historic corridor areas unless otherwise approved by the COR.

TEMPORARY UTILITIES

1.1 UTILITY CONNECTIONS

The work of this section consists of providing temporary services required for Contractor performance of the work of this Contract.

PART 2: PRODUCTS

2.1 GENERAL

Materials shall be new and adequate in capacity for the intended usage, shall not create unsafe conditions, and shall comply with all applicable codes and standards.

2.2 FIRE PROTECTION EQUIPMENT

The Contractor shall provide each jobsite with UL-approved Class 4A, 60BC fire extinguishers. A minimum of two fire extinguishers shall be maintained at each worksite at all times, though additional extinguishers may be required as determined by the Park Safety Officer.

BARRIERS

1.1 DESCRIPTION

• The work of this section consists of furnishing, installing, and maintaining barriers to protect existing facilities, visitors, Government personnel, and the public from construction operations.

• Contractor shall provide, erect, and maintain barricades, warning signs, and protective barriers as necessary to ensure public safety and protection of the work area.

• All signs, barricades, and barrier systems must be approved in advance by the Contracting Officer or authorized representative.

• If fence posts are utilized, Contractor shall obtain approval from the COR prior to installation.

PART 2: PRODUCTS

2.1 GENERAL

Materials may be new or used but shall be suitable for the intended purpose. Fences and barriers shall be structurally adequate and maintained in neat appearance.

2.2 BARRICADES AND SIGNS

Barricades and signs shall comply with ANSI D6.1-78, Manual on Uniform Traffic Control Devices (MUTCD), Part VI.

2.3 BARRIER TAPE

Provide barrier tape imprinted with:

“CAUTION: CONSTRUCTION AREA”