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CAPE HATTERAS NATIONAL SEASHORE

STATEMENT OF WORK:

Repair and Paint Exterior of Double Keepers Quarters

NATIONAL PARK SERVICE

Southeast Region

2 | P a g e Repair and Paint Exterior of Buxton DKQ

TABLE OF CONTENTS

TABLE OF CONTENTS

1.0 BACKGROUND/ EXISTING CONDITIONS..………………………………………………………………………………3

2.0 PLACE OF PERFORMANCE……………………………………………………………………………………………………….4

3.0 TASKS/SPECIFICATIONS

4.0 SUBMITTALS ……………………………………………………………………………………………………..…………………………4

5.0 BARRIERS & RESOURCE PROTECTION MEASURES …………………………………………….…..……..4

6.0 PICTURES …………………………………...……………………………………………….4,5,6,7

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1.0 BACKGROUND AND EXISTING CONDITIONS:

The DKQ is located at 46379 Lighthouse Road in Buxton, NC 27920 it was constructed circa 1850 and consists of a brick piling foundation with wooden frame, tongue and groove wood floor and ceilings, lapped board siding with windows on first and second floors, covered wooden porch on front side or building and small covered porch outside of rear exit door. The structure is listed on the national register of historic places and is part of the Cape Hatteras Light Station.

The exterior windows include wood trim and sill. The windows include a storm window added to the outside. There are two additions that were built onto the structure since original construction. The floor joists on one of the DKQ additions has signs of previous pest damage.

The floor joists are true 3” x 10” rough cut timbers measuring approximately 14 ft long. The DKQ addition measures approximately 14 ft wide. The joists are notched at each end and rest on a floor beam. Two joists have been cut and braced together with another timber. Several 2x4 pieces of wood have been placed as sister sections or bracing directly beneath floor boards to stabilize the flooring above. Electrical conduit has been clamped to the floor joists and other wiring has been run through holes drilled through the floor joists in several locations.

Figure 1: Photo of subfloor of DKQ Addition. Rot on one floor joist can be seen. Cut floor joist and 2x4 braces can be seen.

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The combined lapped siding for the two-story original structure and the two single story additions measures approximately 5,350 sf. There are 37 double hung windows in the structure.

All windows have a plexiglass storm window covering the original opening and approximately 530 linear feet. The roof overhangs approximately 2 ft past the eve of the structure and includes a thin screened opening approximately 3 inches wide along the soffit, allowing air to enter the attic space. When the building was previously painted the areas that had paint were not sanded to provide a smooth transition to the areas that had no paint. Some of the clapboard siding has cracks and some have rough areas that were not sanded before applying paint. In August a Lead Paint Report was done and lead was detected above laboratory reporting limits in samples collected see attached results. The existing painted surfaces show signs of lead paint that are above laboratory reporting limits.

2.0 PLACE OF PERFORMANCE:

The address for the Double Keepers Quarters is 46379 Lighthouse Road in Buxton, NC 27920.

3.0 TASKS/SPECIFICATIONS:

3.1 Task 1: Provide Lead Based Paint Plan, Product Data, and other submittals required by the Contract.

3.2 Task 2: Repair DKQ Subfloor framing.

3.2.1 Jack-up and support existing floor area under the DKQ temporarily to complete subfloor.

3.2.2 Remove 2x4 wood member sistered to the rotted floor joists. Remove rot from (2) existing floor joists which show previous termite damage. Treat areas of joist with a high-quality liquid wood treatment such as Abatron wood treatment and or approved equal.

3.2.3 Carefully and temporarily detach electrical conduit from the floor joists.

Modify the existing rotten joist to raise the pair of cables up approximately 2.5”.

3.2.4 Provide two (2) new full length 3” X 10” rough cut joists to sandwich both of the treated rotten joists. Notch ends to match existing joists. Install through bolts to sandwich the two existing treated rotten joists. New bolts shall be 3/8 inch diameter type 316 stainless steel. Washers and nuts on both sides shall be type 316 stainless steel. Place a pair of bolts spaced 2

ft. The pair of bolts shall be one above the other slightly staggered. The top bolt shall be 2” below the top of the joist. The bottom bolt shall be 2”

5 | P a g e above the bottom of the joist. Do not place new pairs of bolts within 12 inches of the end of the joist.

3.2.5 One pair of new full length joists shall be notched approximately 1.5” at the top to accommodate the pair of cables running through the existing joist. Verify the exact location and placement of this notch.

3.2.6 Remove six (6) short cut and braced joist sections.

3.2.7 Provide (2) new full length floor joists spaced equally between the sandwiched joists. Notch new joists to match adjacent joists.

3.3 Task 3: Clean DKQ Exterior to remove mildew.

3.3.1 Remove Downspouts and Gutters.

3.3.2 Remove 6 benches from the front porch and clean using a full strength mixture of D-2 Biological solution. Following manufacturer’s instructions for Immediate Result Method. Allow the D-2 solution to saturate the benches for 15 minutes prior to scrubbing and rinsing. Natural bristle brush (no wire brush) shall be used for scrubbing.

3.3.3 Contractor shall clean all painted exterior surfaces approximately 7,166 sq ft to include 37 windows, gutters, porches, railing, porch ceilings doors, soffit, facia and two cisterns. Remove rotted facia, approx. 35 LF.

3.3.4 Use a full strength D-2 Biological solution. Following manufacturer’s instructions for Immediate Result Method. Allow solution to remain wet on the structure for at least 15 minutes. Scrub and repeat until mildew is completely removed. Natural bristle brush (no wire brush) shall be used for scrubbing.

3.3.5 Allow all exterior surfaces to dry.

3.3.6 Pick up all paint flakes that are knocked off during pressure washing.

3.4 Task 4: Surface Preparation

3.4.1 Remove storm windows and store on site. Clean storm windows and building windows.

3.4.2 Scrape off loose paint chips and collect for disposal.

3.4.3 Areas requiring sanding are approximately 3,220 square feet, including windows, gutters, porches, railing, porch ceilings doors, soffit, and facia.

3.4.4 The Wet Sanding method is preferred and is an acceptable method to safely sand lead containing paint to provide a smooth transition between uneven paint surfaces. Unless specifically approved in writing as part of

6 | P a g e the Contractor’s Lead Based Paint Plan, the contractor will use the wet sanding method on any surfaces that need sanding.

3.4.4.1 Provide tarps or other protection to prevent paint from covering surfaces below while painting.

3.4.4.2 Lightly mist the surface to be sanded with spray bottles to keep the immediate area being sanded wet.

3.4.4.3 Use absorbent rags to wipe off / remove the paint and water from the sanded surface before it runs down the walls and can drip.

3.4.4.4 Only sand and mist small areas which can be wiped while working.

Do not allow the moist surface to run down and drip to the ground or surface below.

3.4.4.5 Wet sand all rough areas on clapboard to obtain a smooth surface.

Replace boards which are thin or cannot be sanded smooth, approximately 10 boards.

3.4.4.6 Wet sand any areas that do not have a smooth transition between coats of paint.

3.4.4.7 Used absorbent rags and collected paint chips shall be placed in a Hazardous Materials container and deposed of at an authorized facility.

The above method is one way to safely sand lead paint. The contractor shall include their methodology in their Lead Based Paint Plan which they plan to use. The method must be an accepted practice for Lead Based Paint Removal according to a Code or Industry Standard or be signed off by an Industrial Hygienist based on the site conditions and scope of work for this contract. The process if different than the wet sanding method shall provide a smooth transition between previous coats of paint and removing the rough surfaces on the clapboard siding so that the end result is a level smooth finish.

3.5 Task 5: Repair exterior surfaces.

3.5.1 Reattach a 5/8” x 3” x 8’ section of tongue and grove deck board on the front porch which is not currently attached. Use Type 316 stainless nails.

3.5.2 Replace 23 broken or missing springs/clips to gutters around building.

3.5.3 Repair defects cracks/holes in the clapboard, soffit, facia, trim, porch ceiling and porch railing with a wood treatment and wood epoxy: Use Abatron wood treatment and wood epoxy or approved equal -approximately 500 LF. Boards which are cracked or broken greater than 50% of the board or rotten greater than 50% of the thickness of the board shall be replaced rather than repaired.

3.5.4 Wood with surface rot shall be repaired. Remove rotten wood down to solid wood then treat and fill with high quality wood treatment and wood epoxy: Abatron wood treatment and wood epoxy or approved equal –

7 | P a g e approximately 1000 sq ft. If rot is more than 50% of the thickness, replace the board with new.

3.5.5 Allow wood epoxy to set per manufacturer’s instructions and then sand.

3.5.6 Remove approximately 926 linear feet of clapboard around DKQ and replace with new 1 X 6 clapboard matching the existing clapboard cross section. Provide 5-inch reveal which is continuous with adjacent course boards. Use type 316 stainless steel nails. Coat on all 6 sides of new boards using paint specs below.

3.5.7 Fill all screw holes before painting windows.

3.5.8 Replace 44 sq ft of soffit on north side.

3.5.9 Repair crack in concrete cover on cistern located on south side of DKQ.

3.5.10 Repair rusted nail heads, approximately 1,000 nails. Remove rust, apply rust destroyer and allow to dry, countersink nails, fill in holes with a high-quality non-shrinking, hard drying exterior wood patch: MH Ready Patch, Albatron WoodEpox, or approved equal. Sand to a smooth finish after drying.

3.5.11 Provide Chimney Caps. New chimney caps shall be installed over 4 chimney openings. Chimney caps shall be metal, custom vented of traditional style, historical . Similar to B&B Sheet metal or equal.

Fastening of the new cap to the existing brick chimneys shall be per manufacturer’s requirements for the wind and materials at the site. Screen lathe and mortaring the chimney opening closed is included. Chimney Caps | B&B Sheet Metal (bbsheetmetal.com) is an example of the chimney cap.

3.6 Paint exterior surfaces.

3.6.1 For masonry surfaces, use an exterior masonry vapor-permeable paints and coatings for historic masonry structure preservation paint

3.6.1.1 Color shall be white and green shade to match the existing white and green historic colors.

3.6.1.2 Keim Mineral Coatings of America, Inc. (http://www.keim.com) or equivalent long life, mildew resistant paint.

3.6.2 Seal exposed wood with a linseed oil-based sealant as a pre-primer and allow sufficient drying according to manufacturer’s recommendations before applying primer to entire surface. Seal all 6 sides of new replacement wood.

3.6.3 Provide one coat of primer to all exposed surfaces. Surfaces will include copper, galvanized, wood, concrete, and brick. Coat all 6 sides of new wood.

3.6.4 Paint approximately 7,870 sq ft to include 37 windows, gutters, downspouts, porches, railing, porch ceilings doors, soffit, and facia with http://www.bbsheetmetal.com/product/chimney-caps/ http://www.bbsheetmetal.com/product/chimney-caps/ http://www.keim.com/

8 | P a g e two coats of high-quality exterior breathable acrylic or acrylic latex paint to match present color.

3.6.4.1 Exterior paint shall be mildew resistant and UV resistant.

3.6.5 New wood siding boards shall be pre-primed on all six sides with a treatment oil suitable for painting, like a linseed oil and allowed to dry (per treatment manufacturer’s recommendation) prior to primer and paint coats.

3.6.6 Remove any paint splatter and/ or spills.

3.6.7 Clean, prime, and coat copper and galvanized surfaces with anti-corrosion metal cleaner and a metal primer with adhesion to copper surfaces. Two coats of primer which accepts the selected top coat. Prepare a test section of the metal gutter surfaces to be used as a mock up for the metal surface to show proper cleaning, adhesion, and finished coat. The replacement section of gutter may be used as the mock up section. Schedule an inspection of the mock up for acceptance by the Contracting Officer’s Representative.

3.6.8 The painting contractor shall produce a “properly painted surface.” A “properly painted surface” is defined as uniform in appearance, color, texture, hiding and sheen. It is also free of foreign material, lumps, skins, runs, sags, holidays, misses, or insufficient coverage. It is also a surface free of drips, splatters, spills, or overspray caused by the painting contractor’s workforce. To determine whether a surface has been “properly painted” it shall be examined without magnification at thirty-nine (39) inches or one (1) meter, or more, under finished lighting conditions and from a normal viewing position. See PDCA P1. At PDCA- Standards-May28-2019.pdf (pcapainted.org)rips, spatters, spills,

4.0 SUBMITTALS:

4.1 Submit the manufacturer’s paint colors.

4.2 Lead Based Paint Plan

4.3 Product Data, including Safety Dada Sheets (SDS):

4.3.1 Paint

4.3.2 Treated Wood

4.3.3 Fasteners

4.4 Operations and Maintenance Manuals associated with the products

4.5 Receipts of construction debris showing volume/weight of non-hazardous and hazardous materials.

5.0 BARRIERS & RESOURCE PROTECTION MEASURES:

5.1 Due to the historic materials that will be affected by this project, unintentional damage that occurs to the structure requires repair with in-kind historic materials.

https://pcapainted.org/wp-content/uploads/2019/05/PDCA-Standards-May28-2019.pdf https://pcapainted.org/wp-content/uploads/2019/05/PDCA-Standards-May28-2019.pdf

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Protect all exterior/interior surfaces of the building and adjacent landscaping, walks, drives, walls, signage, all adjacent buildings, and Government equipment from damage by project operations. Use drop cloths, shields, masking, templates, or other suitable protective means. Protect glass windowpanes, and metal hinges and other non-painted features from breakage or other damage during project work

5.2 Erect temporary construction barriers to protect visitors, employees and restrict pedestrian access. The contractor shall work with the CO/COR to avoid or minimize interruptions to general visitor access. Minimum is OSHA standards.

6.0 PICTURES

SOUTH SIDE OF DKQ AND DAMAGED GUTTER

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MORTIS AND TENON UNEVEN TRANSITION BETWEEN PAINT COATS

WEST SIDE OF DKQ

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CISTERN CAP WITH CRACKED/BROKEN CORNER