J1 - Summary of Work (SOW) FM Roof.pdf

SEED ORCHARD AND WALNUT GROVE COMPLEX ROOF REPLACEMENT AND REPAIR

FRANCIS MARION NATIONAL FOREST

SECTION 1.0

SUMMARY OF WORK

PART 1 GENERAL

1.01 PROJECT LOCATION

A. Location of work is at the Francis Marion Seed Orchard located in Huger, South Carolina.

1.02 DESCRIPTION

A. This work shall consist of the replacement of the 3 roofs. The three buildings to have their roofs replaced are located at the Seed Orchard and are the pesticide building and the 2 pole sheds. Some fascia trim replacement and other incidental work may be required. All of this work shall be performed in accordance with these specifications and other provisions of the contract. The work shall include the following: removal, disposal, and replacement of existing shingles. Work may include the replacement of other roofing components as identified by the contractor and agreed to by the contracting officer.

B. The Contractor shall furnish all labor, materials, equipment, tools, supplies, supervision, and transportation, and perform all of the work required AS LISTED IN THE SCHEDULE OF WORK AND SPECIFICATIONS.

1.03 STORAGE OF MATERIALS

A. The Contractor may store materials and equipment at the work site at their own risk. All materials must be kept in an area designated by the COR and be neat and orderly.

B. The Contractor shall install barricades or tape barriers around all storage areas.

C. Contractor shall maintain the site in a clean & orderly condition throughout construction.

SECTION 2.0

SELECTIVE DEMOLITION

PART 1 GENERAL

1.01 WORK INCLUDED

A. This work shall consist of the removal and satisfactory disposal of designated damaged roof components as specified herein.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

3.01 GENERAL

A. The Contractor shall execute the demolition work in a way not to damage adjacent structural members or other facilities designated to remain.

B. All demolition debris shall become the property of the Contractor. All demolition refuse and construction debris shall be removed from Government Land.

SECTION 3.0

CARPENTRY

PART 1 - GENERAL

1.01 GRADING & STANDARDS

A. Southern Pine shall conform to Federal Specification MM-L-751H and to the latest grading rules of the Southern Pine Association. All lumber shall be grade-certified by the Association.

B. All plywood shall conform to PS-1-74 and to the latest standards of the American Plywood Association or

Hardwood Plywood Institute. All plywood shall be certified by the appropriate grade trademark of the Association.

PART 2 - PRODUCTS

A. Structural framing where needed shall be Southern Yellow Pine #2.

B. Plywood Sheathing where needed shall be exterior type "C" - CEXT-APA, as defined by the American Plywood Association.

PART 3 - EXECUTION

3.01 FRAMING

A. Where approved by CO to repair damaged members, cut framing square on bearings, closely fitted and accurately set level and plumb to required lines and levels. Secure rigidly in place.

3.02 ROOF SHEATHING

A. Where approved by CO to repair damaged sheathing, install sheathing perpendicular to run of roof rafters and nail in accordance with manufacturers' instructions.

B. As soon as sheathing is in place, cover all roof areas with standard asphalt impregnated 30-pound building felt.

3.03 FINISH CARPENTRY

A. Nails and screws shall be neatly set, and all wood raised in the driving of nails and screws removed. Exterior corner joints shall be mitered.

SECTION 4.0

ROOF SHINGLES

PART 1 – GENERAL

A. This section covers all roof shingles and related items.

B. Deliver roofing materials to the job site in manufacturer’s original packaging with seals intact.

PART 2 – PRODUCTS

A. New asphalt shingles for all three buildings shall be 40-year warranty, TIMBERLINE PRESTIQUE 40 ARCHITECTURAL SHINGLES BY GAF-ELK or approved equal.

1. Color shall be the same or as close to the current shingles.

B. Ridge vents shall be VENTED RIDGECREST by GAF-ELK or approved equal.

C. Flashing for the plumbing vents shall be pre-molded neoprene flashing.

E. Fasteners shall be 1-1/4” long, 11-gauge galvanized roofing nails.

F. Valley flashing shall be performed 16 oz copper flashing.

G. Roofing underlayment shall be 30lb roofing felt.

H. Valley underlayment shall be GRACE “ICE & WATER SHIELD” or equal.

PART 3 – EXECUTION

A. Remove existing single layered shingle roof including felt paper. Pull all nails. Report any defects or repairs needed to the Contracting Officer. Removed roofing shall become the property of the Contractor and shall be removed from the premises.

B. Use magnetic roller to retrieve any nails that may fall off the roofs.

C. Protect the existing vegetation from damage.

C. Install underlayment and new shingles in strict accordance with the manufacturer’s instructions shown on wrapper.

1. Staples will not be allowed.

2. Install single layer of 30lb roofing felt underlayment.

3. Roof valleys shall receive full width layer of ice & water shield from soffit end to roof ridge.

4. Copper flashing shall be installed in “open valley” fashion. Open valley shall be eight (8) inch min. width.

5. The roofing shingles must lap the flashing at least six (6) inches (each side of valley).

6. Lap copper flashing ends a minimum of six (6) inches and seal with an approved sealer.

F. Protect existing gutter systems. Repair any damage caused during removal of old roof or installation of new shingles. Remove and reinstall if needed to avoid damage.

G. Install new Ridge Vent the entire length of the roof ridge.