A04_Deshler_Morris_Exterior_repair_Final_final_Specs_6-21-22.pdf

INDEPENDENCE NATIONAL HISTORICAL

PARK PHILADELPHIA, PA

Solicitation Number

PMIS 255524 & 307798

Exterior Repairs and Painting of the Bringhurst and the Deshler Morris Houses Replace Roof at the Deshler Morris House

SPECIFICATIONS

Oct 5, 2021

INDE 255524 & 307798

TABLE OF CONTENTS

DIVISION 01 — GENERAL REQUIREMENTS

Section 01 01 0 Summary of Work Section 01 31 0 Project Meetings.……….………………… Section 01 32 0 Construction Schedule… Section 01 33 2 Submittal Procedures… Section 01 35 2 Safety Requirements… Section 01 35 9 Historic Preservation Treatment Procedures… Section 01 42 0 References… Section 01 50 0 Temporary Facilities and Controls Section 01 56 4 Scaffolding ……..…………………………… Section 01 73 4 Execution………………………..……………………………………..5 Section 01 74 1 Construction Waste Management and Disposal Section 01 77 0 Closeout Procedures

DIVISION 02 — EXISTING CONDITIONS

Section 02 41 1 Selective Structure Demolition Section 02 83 3 Lead Paint Removal and Disposal……………………………….….16

DIVISION 04 — MASONRY

Section 04 10 0 Mortar………………… Section 04 20 0 Masonry Units………………..…………………………………………. 9

DIVISION 06 — WOOD, PLASTICS AND COMPOSITES

Section 06 01 2 Restoration of Finish Carpentry Section 06 10 0 Rough Carpentry…

DIVISION 07 — THERMAL AND MOISTURE PROTECTION

Section 07 31 2 Cedar Shake Roof Section 07 63 1 Sheet Metal Roofing and Flashings Section 07 65 2 Self-Adhering Sheet Flashing Section 07 92 0 Joint Sealants

DIVISION 08 — DOORS, WINDOWS, AND GLAZING

Section 08 14 3 Rail and Stile Wood Doors Section 08 40 0 Wood Blinds and Shutters………………………………… …………...…… 4 Section 08 80 0 Glass and Glazing……………………………………………………………. 2

DIVISION 09 — FINISHES

Section 09 90 0 Plaster and Lath………………………………………………………. 6 Section 09 91 0 Painting Section 09 24 0 Stucco……………………………………………………………….6

APPENDICES

Appendix Forms

INDE 255588; 307798 Section 01010

SECTION 01010 SUMMARY OF WORK

PART 1- GENERAL

1.1 SUMMARY:

A. The Contractor shall provide all labor, materials, tools and equipment necessary for the successful prosecution and completion of the work. The project is to be bid as a base bid with three options. The work of INDE 255598 & 307798 – Exterior Repair and Painting of the Deshler Morris & the Bringhurst Houses and Replace and Repair Roofs at the Deshler Morris House shall include, but is not limited, to the following:

1. Remove existing cedar shingle roofing, underlayments and /or felts, and related flashings including counter flashings of the Deshler Morris House.

Where required for the work demount the existing lightning arrestors and salvage for reinstallation. The reinstallation of the lightning arrestor system shall be carried out by a company regularly engaged and experienced in the installation of such systems.

2. Inspect existing skip sheathing/shingle lath. Report in writing on the condition of the sheathing/lath to the C.O. including any quantities, if any, in excess of that included in the Basis of Bid. Carry out carpentry repairs as defined in the Basis of Bid. Remove damaged lath that no longer performs as intended and replace with new treated wood replacement lath matching the existing lath in size and shape Minimum length of new lath shall bear on three (3) rafters. Where existing lath that remains after repair would bear on less than three (3) rafters these short sections of remaining lath shall be included in the replacement. See basis of bid for quantities of work required under the contract.

3. Clean and inspect the existing EPDM roofing/floor of the second-floor rear porch of the Deshler Morris House including flashings, seams and accessories for damage, defects, or failure. Report on the condition of the same to the CO including any recommended repairs of deficiencies.

Document the condition with photographs and show deficiencies on marked up plans. No further work is required under the base bid for this EPDM roofing system.

4. Remove existing the sheet metal liners of the built-in pole gutters of the wood shingle roofs in their entirety and inspect wood substrate. Report on condition of the substrate to the C.O. including any quantities of repairs in excess of that included in the basis of bid. Carry out carpentry repairs as defined in the Basis of Bid. New material shall match the existing in size and installation details except that any new replacement wood for the concealed wood of the pole gutters shall be pressure treated to prevent rot. See Basis of Bid for quantities of work required under the contract.

5. Beginning at the eaves or at the pole gutters where these are found and continuing up the roof slope for a distance of 4’- 0” install new infill between the existing skip sheathing/shingle lath to receive a self-adhering sheet membrane roof underlayment over the solid sheathing thus created along with a nylon three-dimensional matrix shingle breather installed on the underlayment. Existing shingle lath in good condition to remain. Existing deteriorated shingle lath shall be replaced as part of # 2 above.

6. Infill between the existing shingle lath to accommodate the new shingle weather exposure of the new wood shingle roof. Approximately 145 LF of 1 x 6 pressure treated infill lath ripped to fit between the existing lath required.

See Basis of Bid for existing shingle lath replacement requirements.

7. Install new lead or zinc tin coated copper liners in existing pole gutters to match existing installation or as detailed or specified. The contractor shall clean out the existing rain leaders/down spouts to their outlet or their connection to the underground drainage. Investigate underground storm water drainage piping connected to the rain leaders/down spouts where found to determine if drainage is functioning properly. Testing shall consist of running water with a garden hose at full flow into the underground system for a minimum of 10 minutes to see that the drainage system functions without backing up. Report to CO in writing any deficiencies in drainage. If subsurface drainage is found to be operational tie the existing rain leaders/down spouts into the underground drainage system. If subsurface drainage is not operational provide temporary corrugated plastic piping runouts to conduct the discharge away from the structure. Up to two (2) sections of 8’-0” plastic piping required at each rain leader/downspout.

Repair of subsurface drainage is not in contract.

8. Inspect the existing standing and flat seam lead coated copper roofing of the rear ell of the Deshler Morris house, including associated visible flashing and accessories and report on the condition of the same to the CO in writing including the recommended repairs of any deficiencies. Document the condition with photographs and show deficiencies on marked up plans.

9. Remove three existing chimney caps and two roof hatches from the Deshler Morris House, fabricate new sheet metal caps to install on existing frames.

Provide one additional new chimney cap to fit the NW chimney on the front of the Deshler Morris House using the SW chimney cap as a guide..

10. After roof surfaces intended to receive new roofing are made ready install new Class B fire treated western red cedar shingle roof with required flashing and accessories as indicated, shown, specified or required to provide a weather tight roofing system for Deshler Morris House. After the completion of the roofing system reinstall the portions of the lightning arrestor system removed to enable the work. Reinstallation shall be by a company regularly engaged and experienced in the installation of such systems.

11. Install new lead-coated or terne coated copper flashings as indicated or required for the new wood shingle roof. Flashing indicated or required to be laid up in the new wood shingle shall be installed with the wood shingle installation.

12. Inspect the exterior masonry and stucco surfaces of the Deshler Morris House and Bringhurst House for damage, cracking, spalling or delamination and other failure. Report in writing to the CO on the condition illustrating typical and severe conditions with photographs along with recommendations for repair and repair quantities in excess of the Basis of Bid quantities.

Document significant deficiencies with Photographs. Carry out masonry and stucco repairs as indicated up to the quantities called for in the Basis of Bid.

13. Carry out repairs to the steps as called out in the drawings. This work is separate from and not part of the Basis of Bid masonry quantities.

14. Remove approximately six square feet of brick pavers at the SE corner of the Bringhurst House where they have settled. Add additional compactable fill/setting bed material as required to bring reset pavers level with the surrounding brick pavers. Hand compact the new fill/setting bed and reset and sand the brick pavers.

15. Remove the existing sheet metal chimney caps of the Deshler Morris House and report on the condition of the underlying masonry in writing to the C.O.

including any suggested repairs required in excess of the Basis of Bid repair quantities, if any, required to put the masonry in good repair to receive the new lead or terne coated copper caps. Install new chimney caps where existing caps are removed after the masonry is in suitable condition to receive them. After masonry repairs are completed to the chimneys apply silane masonry damp proofing to top surfaces (horizontal and sloped) of masonry parapet walls and exposed top surfaces of chimneys of the Deshler Morris House as part of the base bid. New chimney caps shall conform to the existing configuration of the caps that they replace in terms of size, openings and fabrication unless detailed otherwise. All openings in the chimney caps, if any, shall receive new copper or bronze ¼” hardware cloth soldered to the metal frame.

16. At rear wing of the Bringhurst House inspect the EPDM roof for leaks, damage, defects, or failure. At the SE corner of the roof remove the lightning arrestor, clean and patch leak and reinstall Lightning arrestor. Reinstallation of the lightning arrestor shall be by a company regularly engaged and experienced in the installation of such systems.

17. At rear wing of the Bringhurst House remove the existing hung half round gutter as indicated and replace with new lead or terne coated copper half round gutter. Supplement the existing adjustable stirrup hangers with new bronze or copper adjustable stirrup hangers set at the midpoint between the existing hangers according to detail. Connect the new gutters to the existing rain leaders, test the underground drainage system to determine if drainage is functioning properly. Testing shall consist of running water with a garden hose at full flow into the underground system for a minimum of 10 minutes to see that the drainage system functions without backing up. Report to CO in writing any deficiencies in drainage. If subsurface drainage is found to be operational tie the existing rain leaders/down spouts into the existing underground drainage system. If subsurface drainage is not operational provide temporary corrugated plastic piping runouts to conduct the discharge away from the structure. Up to two (2) sections of 8’-0” plastic piping required at each rain leader/downspout. Repair of subsurface drainage is not in contract.

18. At rear wing of the Bringhurst House excavate adjacent to the wall as indicated to a depth of +/- 2’ – 0”. Line trench along wall of the house with dimpled plastic drainage mat with adhered filter fabric screen to foundation wall as shown. Install foundation drainage as detailed consisting of a 4” perforated corrugated plastic pipe fully wrapped or encased in a filter fabric sleeve set in a minimum of one cubic foot of course gravel per foot. Install filter fabric over gravel as shown and refill trenches to grade with earth from excavation, rake smooth and seed with specified grass seed. Run out using solid piping up to 15’ 0” +/- and connect the solid piping to French drain located to avoid interference with the existing geothermal HVAC system and excavated to approximately 3’-0” in diameter by 5’- 0” deep. Line the French drain with two layers of filter fabric and filled with 4’- 0” of course gravel as shown. Cover gravel fill with filter fabric and fill the remaining 1’- 0” of depth with clean topsoil lightly tamped and seed with specified grass seed. Refer to drawing sheet G3 for approximate location of the geothermal HVAC components.

19. Inspect existing roof trim, verge or rake boards, soffits, fascia, and cornices.

Report on the condition of the roof trim, verge or rake boards, soffits, fascia, and cornices of the entire perimeter of both the Deshler Morris House and the Bringhurst House in writing to the C.O. including any quantities, if any, in excess of that included in the Basis of Bid that are required to put the above exterior woodwork in good repair. Carry out carpentry repairs as defined in the Basis of Bid after consulting with the COR on priorities for replacement. Replace existing deteriorated material with new material that matches the size, shape, profile, species and grain orientation of the material being replaced. Include all woodwork required to repair damage or deterioration or as required to carry out roofing and flashing work.

Document the conditions with photographs and show deficiencies on marked up plans. See basis of bid for quantities of work required under the contract.

20. Inspect existing windows and doors including frames and sills. Report on the condition of the windows and doors including frames and sills of both the Deshler Morris House and the Bringhurst House in writing to the C.O.

including any quantities, if any, in excess of that included in the Basis of Bid that are required to put the above exterior woodwork in good repair.

Document the conditions with photographs and show deficiencies on marked up plans.

21. Demount the shutters and blinds of the north or front elevation of the Deshler Morris and Bringhurst Houses, remove the hardware attached to the blinds and shutters, clean, repair and paint the blinds and shutters, repair or replace the existing hardware and clean prime and paint as specified the hardware and reinstall hardware and remount blinds and shutters. Note blinds and shutters of the sides and rear of both houses except where noted are part of Option # 2.

22. After exterior woodwork repairs are complete perform all required or specified painting prep work at of the Deshler Morris House and the Bringhurst House. Prime paint the exterior woodwork in its entirety according to specifications. After all priming is completed paint all exterior woodwork as specified. Colors to match the existing paint colors of the features being painted.

23. At locations indicated in the Deshler Morris House and the Bringhurst House remove the damaged, failed finish plaster, scratch and brown coats. Clean the existing lath and make it ready to receive new plaster. Install new metal lath as specified. Where required, due to damage or rot, cut out the existing lath and install new lath to replace or supplement the existing lath. If the scratch and/or the brown coats appears sound and undamaged they may remain and be reused if accepted by the COR. After removal of the damaged or failed plaster is complete and the lath or existing scratch or brown coats are made ready, apply a new lime-based plaster system matching the existing plaster installation in number of coats. Follow Section 09100 Lath and Plaster of these specifications for the mix and materials of each coat required. New plaster patches shall be brought to the level of the surrounding sound plaster to form a uniform, smooth surface. After the plaster is properly cured prep and paint the entire wall or surface in which the patch occurs painting to the natural borders or stopping points to give a uniform appearance. Colors shall match the existing color of the repaired surface.

24. Install scaffolding including all accessories as specified or required to provide access to the work areas. Provide pedestrian bridges at all building exterior doors as delineated on the Drawings. Secure any required permits or permissions for the erection of the scaffolding along the Germantown Ave.

elevation.

25. Provide protection for the existing buildings and building systems during the work of this contract.

26. Protect the existing plantings, plants, trees, and landscape features during the work of this contract.

27. Dismantle the trellis attached to the rear porch and south facing roof slope and salvage for reinstallation. Note attachment methods to the existing roof slope and replicate the details for the reinstallation. See basis of bit for replacement repairs. At small trellis attached to the rear wing inspect for damage and rot and report on the same to the COR. No further work required on the small trellis beyond prepping and painting.

28. Option # 1 PRIVY work description.

A. Masonry: Remove indicated or deteriorated mortar joints to a depth of ¾” and repoint with specified mortar matching the joint profile of the surrounding sound masonry or as approved by the COR. Mortar shall match the color of the existing mortar as approved by the COR.

B. Carpentry:

1. Provide and install three new wood sills at existing door openings.

New sills shall match the existing sill in profile and shall fit the opening in which they are set, fitting tight to the masonry/frame and the flooring of the interior.

2. Reset one existing wood door sill.

3. Provide and install 175 LF of new shingle lath replacing deteriorated lath or infilling between existing lath to accommodate new shingle weather exposure.

C. Roofing:

1. Remove the existing wood shingle roofing including all felts, nails and flashing to prepare the existing shingle lath or roof deck to receive new wood shingle roof.

2. Install new fire treated wood shingle roof as detailed and specified including all underlayment, flashing and accessories.

D. Painting:

1. Clean and prep all exterior woodwork for painting.

2. Prime woodwork as specified and paint with 2 coats of specified finish paint. One color to be selected by COR.

29. Option # 2 SHUTTER & BLIND REPAIR:

Carry out repairs to the existing wood shutters and blinds of the south, east, and west elevations (sides and rear) of the Deshler Morris House as indicated here and in the Shutter Schedule found on page A 8 of the plans. Minimum repairs to all shutters are to include the demounting of the shutters or blinds removal of the existing hinges by cutting off the rivet heads on one side of the shutter or blind, removal of other hardware and the cleaning and painting of the same with a rust inhibiting primer and two coats of semigloss alkyd oil-based paint. Other repairs are indicated in the Shutter Schedule. Shutters and blinds are to be fully prepped, primed and painted as specified. Reinstall existing hardware after painting is complete, use stove bolts in place of rivets for strap hinge attachment. Provide four sets of new reproduction hardware to include 16 strap hinges, four slide bolts and keepers or lock bars with pins and eight ring pulls with staples. Provide and install one pair of new shutters as indicated in schedule. Provide and install new lead coated copper caps for the new and existing shutters and blinds, Caps to extend min. ½“ own on all sides of the blind or shutter.

30. Option # 3 100% REPOINTING of INDICATED WALLS of

BRINGHURST HOUSE:

In lieu of spot repointing of the west and south walls of the rear ell of the Bringhurst House above the areas requiring 100% repointing in the base bid repoint the entire wall at 100%.

B. The primary goal of the project is to minimize future repairs and preserve the historic fabric of the Deshler Morris House and the Bringhurst House by repairing the exterior envelopes of both houses. The work requires putting into good repair and painting the exterior woodwork, repairing the exterior masonry and stucco of both houses and replacing the existing wood shingle roofing system of the Deshler Morris House. Additional work includes, but is not limited to replacing damaged hung gutters on the rear wing of the Bringhurst House with a new hung gutter and installing foundation waterproofing as indicated on the rear ell of the Bringhurst House with a French drain. The contractor should note any needed repairs not called out or indicated for repair and report the same to the COR. Do not perform any repairs that are not called out or indicated as part of the work without written authorization from the CO.

C. All work will be performed under a single contract.

D. The contractor shall submit phasing schedule as appropriate to maintain access to the buildings for review and approval by Contracting Officer prior to a Notice to Proceed.

E. Basis of Bid:

The Contractor shall include the following Basis of Bid quantities of the indicated work in their base bid to cover the cost of the indicated work in addition to the work required to carry out the re-roofing of the structures with new wood shingles including all carpentry work, flashing and sheet metal work and painting as specified or required. These Basis of Bid items are intended to aid the contractor in determining the quantities required for work that may be concealed or may be subjective in nature and should not be viewed as identifying all work required to complete the work. The contractor should carefully review the construction documents (plans and specifications) in addition to reviewing the Basis of Bid items in developing his bid. Items of work specifically called out or indicated in the plans and specifications are in addition to the quantities or types of work set forth in the Basis of Bid. Should work covered in the Basis of Bid categories exceed the quantities listed the contractor shall notify the CO and the COR in writing as soon as such discrepancies become apparent and await directions before beginning the portion of the work that will exceed the stipulated quantities.

1. After the removal of the existing wood shingle roof remove the existing roof sheathing or shingle lath where the existing roof sheathing or shingle lath is rotted or unsound or otherwise unfit to receive the new roof. Replace with new board sheathing or shingle lath sized to match the existing installation and the approximate the width of the existing wood boards or shingle lath.

Match the new material to the approximate thickness of the existing [assumed thickness ¾”] with minimal shimming. Sheathing boards over 11”in width may be replaced with multiple boards to match the original width. In such cases the contractor shall use the minimum number of boards required to match the width. Minimum board or lath removal/replacement is the span of three rafters or supports (approximately 48”). This work is in addition to the infill between the existing shingle laths to accommodate the new shingle weather exposure and at the eave or pole gutters to 4’ up the roof slope identified under Carpentry.

Basis of bid lath replacement quantity – 125 L.F.

2. Inspect the entire cornice assembly and rake boards associated with the roof.

Perform minor repairs by patching and filling holes, filling splits, re-securing loose sections or pieces and paint with two coats of exterior semi-gloss paint matching the existing color. Replace deteriorated, damaged or rotten sections of the existing molded wood cornice with new wood cornice matching the existing wood cornice in size, shape and molding profile. Construction shall match the existing in terms of built-up sections/assemblies or pieces, no glued-up sections or pieces will be allowed as replacements for solid wood sections or pieces. Include one coat of prime paint on all surfaces of the replacement piece and two coats of exterior semi-gloss paint on exposed paint surfaces. The second coat may be the part of the cornice painting required under the contract. Match the exterior color to the existing color of similar or surrounding painted wood surfaces.

Basis of Bid for cornice repair quantity – 15 L.F. of ea.

shape, type, or piece of trim. Include two modillions and associated trim.

3. In locations requiring the replacement of roof sheathing or shingle lath inspect rafters for rot, failure or other damage. At the existing rafters showing signs of rot, failure or damage sufficient to inhibit the securing of shingle lath to the rafter, scab a new 2x6 to one side of the damaged rafter.

Trim scab to fit the depth of the rafter if required. Extend the scab a minimum of 1’-6” beyond the area of damage in each direction. Stagger nail scabs @ 6” o.c. with 8d nails. Remove additional shingle lath as required to enable the repairs. Additional shingle lath removal and replacement are to be applied to the shingle lath replacement quantity above.

Basis of bid quantity – 1 rafter w/assumed repair length at 5’-0” ea. including the lapping at either end.

4. Repair existing windows and doors of the Deshler Morris House and Bringhurst House as described in the Window and Door Schedules on pages A-8 & A-14 of the drawings and in the general notes on the elevation sheets.

5. Other wood repairs:

Basis of bid quantities:

a. Repair the existing six (6) window well covers as required to put in good condition.

Clean, prep, prime and paint after repairs are complete.

b. Provide one new window well cover to replace missing cover, match existing cover as identified by COR.

c. Cut out and remove up to twenty (20) damaged floorboards of the rear porch of the Deshler Morris House and replace with new matching T & G floorboards. Replace the entire board, no splicing. Clean, prep, prime and paint the entire porch floor after the repairs are complete. Include taking up cleaning, painting and resetting pipe railing.

d. At trellis framing of the second floor of the rear porch of the Deshler Morris House carefully disassemble as required for the installation of new wood shingle roof and associated flashing. Salvage and number parts for reassembly and re-erect in conjunction with the new roofing system.

Provide the following replacement pieces in Honduras mahogany sized to match the existing.

1. Two (2) purlins.

2. Two (2) rafters.

e. Provide two boards of new beaded siding matching existing profile of existing siding as identified by COR. New siding boards shall be Honduras mahogany up to 9” wide, ¾” thick and 10’-0” long. Repairs may be carried out in up to five (5) separate locations. Verify locations with COR before carrying out repairs.

f. Repair the existing blinds and shutters of the north or street elevation of the Deshler Morris and Bringhurst Houses as indicated in the Shutter Schedules. Repairs require the replacement of entire rails, stiles and louvers and panels with no piecing where rot is evident. Verify extent of repairs with COR. The following quantities of repairs are to be included in the Base Bid.

Disassembly of the blinds and shutters and reassembly is required to effect repairs.

1. Replace up to 6 rails and 8 stiles sized to match that which they replace. Match molding profiles and original methods of construction.

2. Provide and install 2 pairs of paneled shutters to be used on the Deshler Morris House or the Bringhurst House as directed by the COR. Size and style of the shutter to be based on the window to which it is mounted.

3. Provide and install 1 pair of louvered blinds to be used on the Bringhurst House.

4. Provide and install 4 complete sets of reproduction hardware – hinges w/pintles, pulls, slide bolts and/or lock bars w/pins.

5. Provide and install 26 new lead coated copper caps for the existing shutters and blinds of the north elevation of the Deshler Morris and Bringhurst Houses sized to fit each shutter or blind. Caps to extend min. ½“ own on all sides of blind or shutter.

5. Repair/ spot repoint the masonry of all parapet walls and chimneys Deshler

Morris House above the roof from the roofing substrate to the top of each wall or chimney to make the masonry ready to receive the new work to be attached to it or to put it in good repair. At the Bringhurst House repoint the south wall below the line indicated in the drawings to the bottom of the wall exposed for the new foundation drainage, 100% repointing required, including the removal of the existing mortar as required to accomplish the work. Spot point the masonry of the south and east walls of the rear ell of the Bringhurst House above the level of the 100% repointing to the eave of the roof (approximately from the windowsills up). Include the following quantities and types of work. See Option # 1 for masonry on Outhouse, and Option # 3 for alternate approach to the masonry of the rear wing of the Bringhurst House.

Basis of bid quantities –

a. 400 SF of spot repointing with a matching joint profile and mortar color as specified or selected. Include raking or cutting out of mortar joints to min. depth ¾”.

b. Remove, clean and reset 15 loose or unbonded bricks. Use a joint profile and mortar matching surrounding or adjacent masonry.

c. Provide and set 50 new bricks that match the existing brick in size, shape, color and texture. Up to two (2) distinct sizes of brick may be required. The new bricks will be used as replacements for damaged or missing brick as identified by the COR.

The joint profile and mortar color shall match the surrounding or adjacent masonry. Turn over any remaining brick not used in the masonry repairs to NPS.

d. Rake out or clean all existing reglets to make ready to receive new flashing.

e. Rake or cut out all new reglets for flashing at new foundation drainage as shown to make ready to receive new flashing.

f. Rake or cut out the joints on the top (horizontal and or sloped) surfaces of all chimneys to a min. depth of ¾” and repoint with a matching joint profile and mortar as specified.

g. Patch up to a total of 1000 LF of cracks in the stucco finishes of the Deshler Morris House and the Bringhurst House. Cracks less than 1/4” in width shall be cut out in a “Vee” shape to ¼” minimum to ½” maximum width at the face of the stucco and penetrating the full depth of the stucco finish. Mechanical cutters or routers may be used for this work upon demonstration of proper methods and abilities to accomplish the work without damaging the stucco intended to remain or the substrate. Patching material shall match the existing stucco into which it is placed in color, texture and tooling or simulated ashlar jointing.

6. Provide the following quantities of interior plaster demolition and repair/replacement for both the Deshler Morris House and the Bringhurst Houses. Quantities given are total amounts and will be split between the houses.

Basis of bid quantities –

a. Plaster removal and replacement: 175 SF new 2 or 3 coat lime-based plaster.

b. Removal of up to 25 SF of existing wood or metal lath and replacement with 35 SF of new galvanized expanded metal lath with min. 6” lap over remaining existing lath.

1.2 DURATION OF THE CONTRACT

A. All work shall be completed within ninety (90) days from the Notice to Proceed, given normal weather conditions. Fair and reasonable extensions may be granted for unforeseen circumstances at the desecration of the Contracting Officer.

1.3 LOCATION: The location of the project is at 5442 Germantown Avenue, Philadelphia

PA 19144

1.4 CONTRACTOR'S USE OF PREMISES:

A. The site will remain open to NPS personnel and the public during construction.

Contractor will maintain access to the main and the rear building entrances as shown on the drawings throughout the construction phase to permit staff and visitor access. If closure of the building entry is required, then Contractor shall notify Contracting Officer no less than 72 hours prior to entry closure. No building entry shall be closed without prior approval by Contracting Officer.

1. The Contractor’s construction activities shall not interfere with building access for employee use throughout the construction phase. The NPS reserves the right to reschedule work that causes excess fumes or noise which interrupts normal work.

2. The Contractor will protect pedestrians from falling overhead debris, with debris netting installed on scaffolding, yellow warning caution tape, guardrails, and fences. A minimum of two rolls of warning tape will be kept on site at all times.

3. The National Park Service (NPS) will not tolerate any deviation from the specifications noted for the safety of the park's staff or visitors at all times.

4. The Contractor shall erect scaffolding bridges to maintain unobstructed egress from the building doorways for the duration of overhead construction.

The Contractor shall provide and maintain barricades between work areas and egress routes.

5. The contractor shall install overhead protection in the form of a pedestrian bridge along the north sidewalks. All sidewalks around the building shall remain open to the public throughout the entirety of the project.

B. The Contractor shall notify the Contracting Officer of the proposed work schedule, i.e. typical workday, prior to mobilization on site. This is to aid NPS Protection staff in monitoring the site. The Contractor shall notify the Contracting Officer whenever work will take place on the site, so that the work can be monitored and to allow for coordination with Park operations.

1. The Contractor shall at all times conduct his operations to ensure the least inconvenience to the occupants and disruption to visiting public.

a. No loud radios or other forms of music shall be permitted.

b. Loud noise shall be kept to a minimum.

c. No loud, inappropriate language toward or around any Park staff, visitors or other members of the public.

C. The Contractor will not be permitted access to the interior of the Deshler Morris or the Bringhurst House or other Park structures unless accompanied by the Contracting Officer or his/her designee.

1. Contractor is prohibited from using interior of building for access to the work.

D. Use of Site: Limit use of premises to areas within the Contract limits indicated. Do not disturb portions of Project site beyond areas in which the Work is indicated.

1. Limits: Confine construction operations to areas indicated on the Drawings.

E. Nonsmoking Building: Smoking is not permitted on NPS Property at any time.

F. Materials shall be taken up the scaffolding by hoist attached to the scaffold or by high lift as permitted by the lift manufacturer’s and OSHA’s safety requirements.

G. Work and storage of materials shall take place in the work area prescribed by the

Contracting Officer and in accordance with NFPA 241 Standard for Safeguarding Construction, Alteration, and Demolition Operations.

1.5 WORK RESTRICTIONS

A. Delivery of material:

1. Vehicular Restrictions: It is important that the historic scene in the Park be preserved for the enjoyment of the Park’s visitors. For that reason, onsite parking is in designated locations only for active work vehicles required in the prosecution of the work and for the loading and unloading of Contractor vehicles. For a possible street parking permit, which allows free parking at legal metered spaces, contact Philadelphia Parking Authority. Permit is good for 6 months.

B. The Contractor will be permitted to work Monday through Friday between 7:00 a.m.

and 5:00 p.m. Work performed at any other time or on Federal Holidays may be done only with prior approval of the Contracting Officer and the Park.

1. Contractor shall request permission from the Contracting Officer one week in advance to work on Federal Holidays, weekends or outside of the normal 7:00 a.m. to 5:00 p.m. schedule.

2. The Contracting Officer may, with at least 2 weeks written notice, designate “no work days” due to special events at the site.

1.6 SPECIAL CONSTRUCTION REQUIREMENTS:

A. Historic Status and Review Notice:

1. The Deshler Morris and Bringhurst Houses are on the List of Classified

Structures. Independence National Historical Park is on the National Register of Historic Places. The Contractor is advised of the following:

a. The work to be performed on this building will meet the highest standards of preservation and building craftsmanship.

b. The Contractor will be intimately familiar with the Secretary of the

Interior Standards for the Treatment of Historic Properties, specifically standards for restoration and rehabilitation.

c. Proper attention shall be given during construction to ensure that there is no loss of significant or historic fabric during construction activities.

d. Maintain existing building in a weather-tight condition throughout construction period. Repair damage caused by construction operations. Protect building and its occupants during construction period.

B. Preservation of Natural Features: Confine all operations to work limits of the project. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the NPS.

1. Provide temporary barriers to protect existing trees and plants and root zones.

2. Do not remove, injure, or destroy trees or other plants without prior approval. Consult with the Contracting Officer and remove agreed-on roots and branches that interfere with construction (only after written approval).

3. Do not fasten ropes, cables, or guys to trees.

C. Prior to start of work, the Contractor shall examine work site with Contracting

Officer or designated representative to determine exact limits of work and the conditions under which this work will be performed.

D. All vehicles including high lifts, operating on paved areas shall comply with the following requirements:

1. All vehicles are required to use pneumatic tires.

2. The Contractor will be held responsible for the protection of the brick sidewalks and will be held accountable for any damage that occurs as a direct result of the work. Any vehicles that exceed a gross weight of 10,000 pounds must use the protection described below. Using this method does not relieve the Contractor of responsibility to protect the walkways from damage.

a. Two layers of ¾” plywood, with a layer of 2” Styrofoam paneling in between, laid in such a manner that the surface of the paved area is covered to all extents of its surface.

b. When the styrofoam has compressed to a height that is less than half its original thickness, or to an extent that the styrofoam is not protecting the paving, it is to be replaced as described above.

3. Post signage to route pedestrians around construction as recommended by the Contracting Officer.

4. Protect pedestrian traffic by guardrails or fences.

5. Cover pipes, hoses, and power lines crossing sidewalks and walkways with troughs using beveled edge boards.

6. Removal: Completely remove barriers no longer needed and when approved by Contracting Officer.

E. Temporary Controls:

1. Housekeeping:

a. Keep project work site neat, orderly, and in a safe condition at all times.

b. Provide enough refuse containers for collecting construction debris and have them removed from the site or emptied daily.

c. Wet down dry materials and rubbish to prevent blowing dust.

d. Keep volatile wastes in covered containers.

2. Proposed dumpster and/or refuse container location shall be submitted to Contractor Officer for review and approval prior to dumpster/refuse containers being brought to the site.

F. Air and Water Pollution Control:

1. Take all necessary reasonable measures to reduce air and water pollution by any material or equipment used during construction.

2. Do not dispose of volatile wastes or oils in storm or sanitary drains.

G. Provide constant protection against rain, wind, storms, frost, and heat so as to keep work and materials free from damage. At the end of each day's work, cover work likely to be damaged. During cold weather, protect work from damage by freezing.

1.7 FIELD VERIFICATION: Field verify all new and existing dimensions affecting the work of this contract before fabricating work.

1.8 QUALITY CONTROL:

A. The Contractor’s designated quality control supervisor shall be employed full time at the project site whenever contract work is in progress.

B. Methods of monitoring and controlling environmental pollution and contamination shall be used as required by regulations and laws.

C. The Contractor shall submit worker qualifications documenting the required experience for the following firms and/or personnel:

1. Job Site Superintendent: Minimum of five (5) years as Job Site Superintendent managing jobs of similar size and complexity. List minimum of one (1) job managed that required the following of the Secretary of the Interior’s Standards for the Treatment of Historic Properties; Rehabilitation Guidelines.

NOTE: Projects involving the Secretary of the Interior’s Standards typically include federal government construction work on buildings listed or eligible for listing on The National Register of Historic Places or private commercial properties being rehabilitated for the Federal Tax Credits for Historic Rehabilitations but may include other projects where the owner elects to follow the Secretary of the Interior’s Standards. For a copy of the Secretary of the Interior’s Standards for Rehabilitation see:

https://www.nps.gov/tps/standards/rehabilitation.htm

2. Lead Restoration/Finish Carpenter: Minimum of five (5) years as a Restoration/Finish Carpenter performing repairs on historic properties requiring the matching of period details and the installation of dutchmen repairs in historic woodwork. List a minimum three (3) projects involving one or both of the required work.

3. Masonry repair and restoration requirements:

a. Contractor performing the masonry work shall have a minimum of 5 years of experience in masonry restoration work of the type indicated for this project, and shall employ personnel skilled in the various restoration operations required.

b. Head Mason: Minimum of five (5) years as a Head Mason performing masonry repairs on historic properties including the cutting out and repointing of mortar joints on historic masonry matching both the historic joint profile and the historic mortar. The work must have generally conformed to the masonry specifications contained herein. List a minimum three (3) projects involving the required work.

4. Lead Roofer: Minimum of five (5) years as a Lead Roofer managing roofing crews installing new wood shingle roofs of similar size and complexity on historic properties. List minimum of three (3) jobs managed that required the installation of a new wood shingle roof.

1.9 CONSTRUCTION CAMP/STAGING-STORAGE AREA

A. The establishment of a construction camp area will be not permitted.

B. Establishment of a Contractor Staging Area will be permitted at a location determined by Contracting Officer adjacent to work area. Keep Contractor Staging Area neat and clean during construction work. Completely remove evidence of Contractor use and return to original condition at completion of work.

1. Staging area shall be enclosed with chain link fencing to secure area from unauthorized access.

PART 2- PRODUCTS Not used.

https://www.nps.gov/tps/standards/rehabilitation.htm

PART 3- EXECUTION Not used.

PART 4- MEASUREMENT AND PAYMENT Not used.

END OF SECTION 01010

INDE 2055524; 307798 Section 01310

SECTION 01310 PROJECT MEETINGS

PART 1: GENERAL

1.1 SUMMARY

A. Contractor shall attend and participate in project meetings as defined below:

1.2 FREQUENCIES:

A. Weekly Progress Meetings: The Contracting Officer will schedule on-site meetings with the Contractor, subcontractors, as required, as well as Park Staff and the Contracting Officer’s Representative (COR). These meetings shall be held approximately once a week, and at the request of the Contracting Officer or Contractor.

B. Project Observation and Review: Coordinate with CO, COR, and Park Staff.

D. Final Inspection: This meeting shall be held when the work has been substantially completed, and upon request of the Contractor, as indicated in Section 01770, Project Closeout.

E. Section Inspection: These meetings will be held on-site at the Contractor's request to inspect work prior to beginning subsequent procedures that will obscure completed work, or is contingent upon approval of completed work.

1.3 LOCATION: Meetings shall be held at Park Headquarters, 143 S. 3rd Street Philadelphia, PA, unless otherwise determined by the Contracting Officer.

PART 2: PRODUCTS Not used.

PART 3: EXECUTION Not used.

PART 4: MEASUREMENT AND PAYMENT Not used.

END OF SECTION 01310

INDE 255524; 307798 Section 01320

SECTION 01320 CONSTRUCTION SCHEDULE

PART 1: GENERAL

A. The Contractor shall execute work according to a Construction Schedule prepared by the Contractor and submitted for review and approval to the Contracting Officer and in coordination with the Park. The purpose of the Schedule is to facilitate ongoing management of project, thorough inspection of work, and assignment of values for progress payments.

1.2 SUBMITTALS

A. In accordance with Section 01332, the Contractor shall submit the Construction Schedule within 7 calendar days from date of Notice to Proceed.

1.3 SCHEDULE CHANGES

A. The progress of work will be monitored according to the approved schedule. The

Contractor shall anticipate required changes and submit all changes for review to Contracting Officer.

1.4 FORM OF SCHEDULE: The Construction Schedule shall be a horizontal bar chart (ie

Gantt or MS Project). Provide separate bars for each trade or operation, and identify each bar by proposed activity.

1.5 CONTENT OF SCHEDULE: The Construction Schedule shall show complete sequence of construction activities including, but not limited to, the following information:

A. Submittal dates, and date that approval of submittal is needed.

B. Project mobilization activities.

C. Material and equipment procurement and delivery dates.

D. Dates for beginning and ending specific construction activities.

E. Percentage of completion for each aspect of the Work at the first day of each month during Contract time.

PART 2: PRODUCTS Not used.

PART 3: EXECUTION Not used.

PART 4: MEASUREMENT AND PAYMENT Not used.

END OF SECTION 01320

INDE 255524; 307798 Section 01332

SECTION 01332 SUBMITTAL PROCEDURES

PART 1 - GENERAL

A. This Section includes administrative and procedural requirements for submitting Shop Drawings, Product Data, Samples, and other submittals as specified in each of specification section.

1.2 DEFINITIONS

A. Action Submittals: Written and graphic information that requires Government’s responsive action.

B. Informational Submittals: Written information that does not require

Government’s responsive action. Submittals may be rejected for not complying with requirements.

1.3 GENERAL SUBMITTAL PROCEDURES

A. Coordination: Coordinate preparation and processing of submittals with performance of construction activities. Review them for legibility, accuracy, completeness, and compliance with contract documents.

1. Coordinate each submittal with fabrication, purchasing, testing, delivery, other submittals, and related activities that require sequential activity.

2. Coordinate transmittal of different types of submittals for related parts of the Work so processing will not be delayed because of need to review submittals concurrently for coordination.

a. Contracting Officer reserves the right to withhold action on a submittal requiring coordination with other submittals until related submittals are received.

B. Processing Time: Allow enough time for submittal review, including time for re-submittals, as follows. Time for review shall commence on Contracting Officer’s receipt of submittal. No extension of the Contract Time will be authorized because of failure to transmit submittals enough in advance of the Work to permit processing, including re-submittals.

1. Action submittals

a. Initial Review: Allow 15 calendar days for initial review of each submittal. Allow additional time if coordination with subsequent submittals is required.

b. Re-submittal Review: Allow 15 calendar days for review of each re-submittal.

2. Informational submittals

a. Review: Allow 10 days for review of each submittal.

D. Approved Equals:

1. For each item proposed as an "approved equal," submit supporting data, including:

a. Drawings and samples as appropriate.

b. Comparison of the characteristics of the proposed item with that specified.

c. Changes required in other elements of the work because of the substitution.

d. Name, address, and telephone number of vendor.

e. Manufacturer's literature regarding installation, operation, and maintenance, including schematics for electrical and hydraulic systems, lubrication requirements, and parts lists. Describe availability of maintenance service, and state source of replacement materials.

2. A request for approval constitutes a representation that Contractor:

a. Has investigated the proposed item and determined that it is equal or superior in all respects to that specified.

b. Will provide the same warranties for the proposed item as for the item specified.

c. Has determined that the proposed item is compatible with interfacing items.

d. Will coordinate the installation of an approved item and make all changes required in other elements of the work because of the substitution.

e. Waives all claims for additional expenses that may be incurred as a result of the substitution

E. Additional Copies: Unless additional copies are required for final submittal, and unless Contracting Officer observes noncompliance with provisions in the Contract Documents, initial submittal may serve as final submittal.

F. Transmittal: Package each submittal individually and appropriately for transmittal and handling. Transmit each submittal using a transmittal form.

Contracting Officer will return submittals, without review, received from sources other than Contractor.

1. Transmittal Form: All material submittals shall be transmitted using National Park Service form CM-16. (A copy of the form is included in the Appendix). No action will be taken on a material submittal item unless accompanied by the transmittal form.

2. Documents required in Division 1 are to be delivered under separate cover letter. Do not use the CM-16 Transmittal form for these documents.

G. Identification:…