AG87BJS170014J1BuildingRepairSpec.pdf

AG-87BJ-S-17-0014

Denbigh Buildings Repairs Contract

Dakota Prairie Grasslands, Mchenry County, North Dakota

Attachment J-1 Denbigh Building Repair Specifications

Attachment J-1 Denbigh Building Repair Specifications Pages 5 and 6 have been incorporated into pages 4 and 5 of this Request for Quote

Dakota Prairie Grasslands, Mchenry County, North Dakota

Attachment J-1 Denbigh Building Repair Specifications Pages 5 and 6 have been incorporated into pages 4 and 5 of this Request for Quote

Dakota Prairie Grasslands, Mchenry County, North Dakota

SECTION 01010

SUMMARY OF WORK

PART 1 – GENERAL

1.1 PERMITS. The contractor is responsible to obtain any required building permits.

1.2 CLEANUP. The interior of the carriage house and the residence basement shall be professionally cleaned and sanitized to remove all animal waste and mold from all surfaces prior to beginning work.

The Contractor shall maintain the work area in a clean and orderly manner daily. All refuse and debris resulting from the operations shall be collected at the end of each day and disposed of off National Grasslands property in accordance with all appropriate Fedral, State and Local ordianances.

The worksite shall be left in a hazardous free state at the end of each work day.

1.3 USE OF GOVERNMENT FACILITIES.

A. SANITARY FACILITIES. The Contractor will be permitted to use the designated existing sanitary facilities at the project site for the duration of the contract.

B. WATER. Water needed for the project may be taken from the existing distribution system. The Contractor shall supply water hose, containers etc.

necessary to transport water from the existing system to his work areas.

C. ELECTRIC POWER. Electric power is available to the Contractor for the duration of the contract at no charge to the extent of designated existing facilities.

The Contractor shall furnish any extension cords or power drops necessary to reach from the existing facilities to the work areas.

D. STORAGE OF MATERIALS. Covered unheated storage will be available at the site to the extent of the existing facilities. The Contractor shall be responsible for all his materials and equipment stored at the site.

SECTION 03300

CAST-IN-PLACE CONCRETE

PART 1- GENERAL

1.1 SUMMARY

A. Contractor to remove concrete slabs from inside the carriage house.

Includes a 2’ 4” x 16’ 4” slab at the entrance under the 2 sets of swing doors on the east side, 2’ x 17’ 10” slab along the north wall, a 2’ x 16’ 4” slab along the west wall and 2 – 2’ 7” x 15’ 6” wheel slabs and dispose of the concrete off Forest Service property and replace the entire area with a 4” depth, 19’ x 21’ concrete slab to abut the existing slab inside the south end of the house and extend to the outside of the exterior walls on the north and west sides. Provide a 1’ x 17’ concrete ramp under the swing doors on the east side.

Removal and disposal of the concrete slabs is incidental to this item.

Dakota Prairie Grasslands, Mchenry County, North Dakota

PART 2 – PRODUCTS

2.1 MATERIALS

A. The concrete shall contain not less than “6.0” sacks of cement per cubic yard.

The slump shall be a maximum of 4 inches. The air content shall be 5-7%.

The 28 day minimum compressive strength shall be 3000 psi.

PART – 3 EXECUTION

3.1 MIXING

A. Batch at a central plant and mix enroute to the project in transit mix trucks in compliance with ASTM C 94.

B. Place truck mixed concrete within a maximum of 1 ½ hours after introduction of cement into the batch.

C. Time between placement of batches not to exceed 30 minutes.

3.2 PLACEMENT

A. Provide 4” compacted depth of aggregate under the concrete slab. Slab to be at same grade as existing slab in south side of building. Take precautions to not damage the structure.

B. Design and construct forms to be free of bulges and warp and allow for removal without damage to the concrete. Keep forms clean and coat with a form release agent. Place ASTM 185 welded wire fabric reinforcing in the slab – WWF 6x6 – W6 x W6, subsidiary to this item. 8

C. Expansion joints shall be installed around all wood posts and between the existing and new slab with ½” x 4” premolded expansion joint filler.

D. Do not place concrete until grading and forms have been inspected and approved by the Contracting Officers Representative (COR). Provide 48 hours notice prior to placement of any concrete.

F. Do not mix or place concrete when the temperature is or is expected to be, less than 40° F unless adequate provisions are made to protect the concrete.

G. Place concrete to avoid segregation. Provide concrete batch ticket to the COR.

H. The concrete shall be struck off with a straightedge and finished to a smooth, uniform texture by troweling and floating..

Dakota Prairie Grasslands, Mchenry County, North Dakota

SECTION 06100

ROUGH CARPENTRY

PART 1 - GENERAL

This section specifies rough carpentry, including all framing for carriage house garage door headers, support column and exterior trim.

1.2 QUALITY ASSURANCE

A. Furnish materials complying with the following:

1. Softwood Lumber.

a. Graded in accordance with the latest edition of “Standard Grading Rules No. 17,” WCLIB, or “Western Grading Rules,” WWPA.

Lumber grades specified below are taken from “Standard Grading Rules, No. 17.” Equal grades from “Western Grading Rules” are acceptable. Furnish lumber bearing a recognized grading bureau mark or a “Certificate of Grade” may be substituted. Where a grade for Douglas Fir (DF) species is indicated, other species, if approved by the COR, may be supplied on an equal stress grade basis.

2. Pressure Treatment.

a. Waterborne, conforming to AWPA C2, AWPA P5.

3. All materials and construction techniques shall meet applicable Local codes or the requirements herein, whichever is stricter.

A. Lumber

1. Furnish S4S lumber.

2. Headers.

a. No. 2, DF, Larch, Hemlock, S-dry.

3. Columns/supports.

a. No. 1, DF.

PART 3 – EXECUTION

3.1 CONSTRUCTION

A. Framing.

1. Stabilize the garage door support post and headers by installing a new post matching the dimensions of the existing column.

2. Remove and replace the 2 headers, over openings of swing doors, of a size indicated below:

Maximum 10’-0” span 4” x 4” ‘s

3. Space header material with plywood or surfaced lumber to equal the stud depth.

Dakota Prairie Grasslands, Mchenry County, North Dakota

4. End nail studs to header with three 16d nails.

5. Do not splice columns. Cut ends square to provide full bearing. Nail column top and bottom with four 16d toenails.

B. Wood Trim

1. Remove and replace the 2 damaged, 1” x 4” x 8’ trim boards on Northeast corner of the carriage house.

2. Paint the replaced trim pieces. Match existing color as nearly as possible.

C. Swinging and Walk in Carriage House Doors

1. Align and adjust swing doors to open and close freely and seal when shut. Adjust walk in door threshold to seal and allow door to open and close freely.

SECTION 08610

WOOD WINDOWS

PART 1 – GENERAL

A. This work shall consist of removing and replacing the window frames, muntins and single pane glass, on the two , 28” x 13 ½”, 3 pane windows in the residence basement.

A. Frame and muntin materials shall be No.2 Douglas Fir or other species may be supplied on an equal stress grade basis if approved by the COR.

PART 3 – EXECUTION

3.1 CONSTRUCTION

A. Remove and replace the window frames, muntins and glass panes.

Remove and replace screen in the 2 screen frames.

Dakota Prairie Grasslands, Mchenry County, North Dakota

SECTION 10300

FIREPLACE AND CHIMNEYS

PART 1 – GENERAL

1.1 SUMMARY

This work shall consist of cleaning/sweeping the 2 chimneys on the 2 houses, inspecting the carriage house wood stove, installing a liner and a chimney cap in the residence masonry chimney and repairing the existing damper in the residence fireplace.

PART 2 – PRODUCTS

2.1 MATERIALS

A. Chimney Liner

1. Stainless steel for residence masonry chimney.

B. Chimney cap.

1. Stainless steel, Black Single Flue chimney without extended flue On residence, masonry chimney.

Sweep the chimneys on the residence and the carriage house prior to installing liner in the residence chimney.

Clean and inspect the carriage house wood burning stove, damper and chimney for functionality and compliance with codes.

Provide and install a stainless steel liner in the residence chimney.

Provide and install a black, stainless steel chimney cap on the single flue, residence chimney without an extended flue.

Repair and install the existing damper in the residence fireplace.

Dakota Prairie Grasslands, Mchenry County, North Dakota

SECTION 22140

SUMP PUMP

PART 1 – GENERAL

This work shall consist of furnishing and installing a sump pump in the basement of the residence.

A. Sump Pump

1. Cast iron, epoxy coated, 1/3 horsepower with a vertical float switch, 10’cord and a 1 ½” discharge port.

B. Sump Pump Basin

1. Polyethylene, sized to fit existing opening, 22” depth.

C. Check Valve

1. For vertical operation.

D. Discharge Pipe

1. 1 ½” PVC or HDPE, Schedule 40.

Sump Pump

1. Excavate material from the existing 18” x 24” opening in the basement, concrete floor to accommodate a sump basin. The residence water supply line and an old steel line currently enter the structure in this opening. Excavate 25” depth below top of concrete floor for the sump basin. Place 3” of ½” minus gravel under and around the basin. Place basin so that top is at floor grade.

2. Thread a 1 ½” PVC male adapter into the discharge port of the pump and tighten till snug. Glue a short PVC riser into the adapter to reach 1-2” above concrete floor grade. Bind the pump electrical cords to the riser with vinyl electrical tape or plastic electrical ties.

3. Carefully lower the pump into the basin and assure the float switch can move up and down without interference. Install the 1 ½” check valve per manufacturer’s instructions. Add a second riser section, above valve, to extend to space between ceiling joists where exiting through the rim joist.

4. Drill hole through rim joist for horizontal, discharge pipe. Install, and

Dakota Prairie Grasslands, Mchenry County, North Dakota glue, a 90° elbow and horizontal discharge pipe on vertical riser to extend 1/2'” outside of exterior wall. Assure that the vertical riser is plumb.

Secure discharge pipe to joists with clamps.

5. Install and glue a 90° elbow to the horizontal pipe and direct downward.

Install a purge pipe to extend 1’ below ground surface. Install a 90° elbow and an extended purge pipe below ground to daylite drain approximately 25’ NE of residence. Install the purge pipe at a - 2% slope. Cap the end of the purge line with a metal screen or a perforated cap.

6. Caulk the rim joist opening inside and outside the house with a silicone-based caulk.

7. Remove and replace the existing duplex outlet with a GFCI outlet located in the ceiling.

8. Notify the COR 48 hours prior to testing the system for functionality.