Specs.pdf

USDA FOREST SERVICE PROJECT SPECIFICATIONS

December 18, 2009 Prospect RS 6-ReRoofs 1/1 Specification List

SPECIFICATION LIST

PROSPECT RS 6 RE-ROOFS

High Cascades Ranger District

Rogue River – Siskiyou National Forest Jackson County, Oregon

CONSTRUCTION SPECIFICATION INSTITUTE (CSI) SPECIFICATIONS

SECTION TITLE

DIVISION 01 – GENERAL REQUIREMENTS

PAGES

01020 Intent of Contract 1 01025 Measurement and Payment 3 01200 Mobilization 1

DIVISION 06 – WOOD AND PLASTICS

06100 Plywood Sheathing 1

DIVISION 07 – THERMAL AND MOISTURE PROTECTION

07412 Roof Replacement 4

December 18, 2009 Prospect RS 6-ReRoofs 01020 - 1/1 Intent of Contract

SECTION 01020

1. PART 1 - GENERAL

INTENT OF CONTRACT

1.01 SUMMARY

A. The intent of the contract is to provide for the complete construction of a fully functional project as described in the contract documents and Drawings. Unless otherwise provided, the Contractor shall furnish all labor, materials, equipment, tools, transportation, and supplies, and shall perform all work required to complete the project within reasonably close conformity to the Drawings and Specifications, and in accordance with provisions of the contract.

2. PART 2 – PRODUCTS (NOT USED)

3. PART 3 – EXECUTION (NOT USED)

4. PART 4 - MEASUREMENT AND PAYMENT (NOT USED)

END OF SECTION

December 18, 2009 Prospect RS 6-ReRoofs 01025 - 1/3 Measurement and Payment

SECTION 01025

1. PART 1 - GENERAL

MEASUREMENT AND PAYMENT

1.1 SUMMARY

A. Measurement and payment for contract work will be made only for and under those pay items included in the Schedule of Items. All other work, labor, materials, equipment, and incidentals necessary to successfully complete the project will be considered as included in the payment for items shown. This section defines the method of measurements and basis of payment for work items listed in the Schedule of Items.

B. When more than one class, size, type, thickness, etc. is specified in the Schedule of Items for any pay item, suffixes will be added to the item number to differentiate between the pay items.

C. Not all units and measurement methods may be used under this Contract.

1.2 DETERMINATION OF QUANTITIES

A. The following measurements and calculations shall be used to determine contract quantities for payment.

1. For individual construction items, longitudinal and lateral measurements for area computation shall be made horizontally or corrected to horizontal measurement unless otherwise specified. Measurements for geotextiles, netting, and erosion control blankets shall be along slope lines.

2. For excavation or embankment volume, the average end area method shall be used to compute volumes. However, if in the judgment of the Contracting Officer (CO), the average end area method is impractical, measurement shall be made by volume in hauling vehicles or by other three-dimensional methods.

3. For structures they shall be measured according to neat lines shown on the Drawings or as altered by the CO, in writing, to fit field conditions.

4. For items that are measured by the linear foot, such as pipe culverts, fencing, guardrail, piping, utilities, and underdrains, measurement shall be made parallel to the base of foundation upon which the structures are placed.

5. For aggregates weighed for payment, the tonnage shall not be adjusted for moisture content, unless otherwise provided for.

6. For standard manufactured items (such as fence, wire, plates, rolled shapes, pipe conduits) identified by gauge, weight, section dimensions, and so forth, such identifications shall be considered the nominal weights or dimensions. Unless controlled by tolerances in cited specifications, manufacturer's tolerances shall be accepted.

B. Earthwork Tolerances - Adjustments of horizontal or vertical alignment, within the tolerances specified in this contract, or shifts of balance points up to 100 feet shall be made by the contractor as necessary to produce the designed sections and to balance earthwork. Such adjustments shall not be considered as "Changes."

December 18, 2009 Prospect RS 6-ReRoofs 01025 - 2/3

1.3 UNITS OF MEASUREMENT

A. Payment shall be by units defined and determined according to U.S. Standard measure and by the following:

1. Acre:

2.

43,560 square feet. Make longitudinal and transverse measurements for area computations horizontally unless specified on the ground surface.

Cubic Yard (CY):

a. Excavation, Embankment, or Borrow. The measurement computed by the average end area method from measurements made longitudinally along a centerline or reference line.

27 cubic feet, computed by one of the following methods:

b. Material in Place or Stockpile. The measurement computed using the dimensions of the in-place material.

c. Material in the Delivery Vehicle. The measurement computed using measurements of material in the hauling vehicles at the point of delivery.

Vehicles shall be loaded to at least their water level capacity. Leveling of the loads may be required when vehicles arrive at the delivery point.

3. Each (EA):

4.

One complete unit, which may consist of one or more parts.

Gallon (GAL):

a. Measured volume in container.

The quantity shall be measured by any of the following methods:

b. Metered volume by approved metering system.

c. Commercially packaged volume.

5. Hour (HR):

6.

Measurement will be for the actual number of hours (or fraction thereof) ordered by the Contracting Officer and performed by the contractor.

Linear Foot (LF)

7.

: Measurement of work along its length from point-to-point;

parallel to the base or foundation. Do not measure overlaps.

Lump Sum (LS)

8.

: One complete unit, not directly measured. The bid amount is complete payment for all work described in the contract and necessary to complete the work for that item.

Mile

9.

: 5,280 linear feet. Measure horizontally along the centerline of each roadway, approach, or ramp.

Pound (LB):

10.

For sacked or packaged material, measurement will be the net weight as packed by the manufacturer.

Square Foot (SF):

11.

Measured on a plane parallel to the surface being measured.

Square Yard (SY):

12.

9 square feet. Measure on a plane parallel to the surface being measured.

Square (SQ): Roofing unit of area equal to 100 square feet. Measure on a plane parallel to the surface.

December 18, 2009 Prospect RS 6-ReRoofs 01025 - 3/3

13. Ton:

14.

Measured as a short ton consisting of 2,000 pounds.

Station (STA):

1.4 METHOD OF MEASUREMENT

100 Linear feet. Measure horizontally along centerline or reference line of each roadway, approach road, or ramp.

A. One of the following methods of measurement for determining final payment is designated on the Schedule of Items for each pay item:

1. ACTUAL QUANTITIES (AQ) - These quantities are determined from actual measurements of completed work.

2. DESIGNED QUANTITIES (DQ) - These quantities denote the final number or units to be paid for under the terms of the contract. They are based upon the original design data available prior to advertising the project. Original design data include the preliminary survey information, design assumptions, calculations, drawings, and the presentation in the contract. Changes in the number of units shown in the Schedule of Items may be authorized under any of the following conditions:

a. As a result of changes in the work authorized by the CO.

b. As a result of the CO determining that errors exist in the original design that causes a pay item quantity to change by 15 percent or more.

c. As a result of the Contractor submitting to the CO a written request showing evidence of errors in the original design that cause a pay item quantity to change by 15 percent or more. The evidence must be verifiable and consist of calculations, drawings, or other data that show how the designed quantity is believed to be in error.

3. LUMP SUM QUANTITIES (LSQ) - These quantities denote one complete unit of work as required by or described in the contract, including necessary materials, equipment, and labor to complete the job. They shall not be measured.

4. STAKED QUANTITIES (SQ) - These quantities are determined from staked measurements prior to construction.

5. VEHICLE QUANTITIES (VQ) - These quantities are measured or weighed in hauling vehicles.

2. PART 2 – PRODUCTS (NOT USED)

3. PART 3 – EXECUTION (NOT USED)

4. PART 4 - MEASUREMENT AND PAYMENT (NOT USED)

December 18, 2009 Prospect RS 6-ReRoofs 01200 - 1/1 Mobilization

SECTION 01200

1. PART 1 - GENERAL

MOBILIZATION

1.1 SUMMARY

A. This work shall consist of preparatory work and operations necessary for the movement of personnel, equipment, supplies, and incidentals to the project site, and for all other work and operations that must be performed or that cause costs to be incurred prior to beginning work on the various items on the project site.

2. PART 2 - PRODUCTS (NOT USED)

3. PART 3 - EXECUTION (NOT USED)

4. PART 4 - MEASUREMENT AND PAYMENT

4.1 PROGRESS PAYMENTS WILL BE MADE AS FOLLOWS:

A. When 5 percent or more of the original contract amount is earned from other pay items, 50 percent of the amount for mobilization, or 5 percent of the original contract amount, whichever is less, will be paid.

B. When 10 percent or more of the original contract amount is earned from other pay items, 100 percent of the amount for mobilization, or 10 percent of the original contract amount, whichever is less, will be paid.

C. Upon completion of all work on the project, any unpaid amount for mobilization will be paid.

D. The total of all payments shall not exceed the original contract amount for this item.

4.2 BASIS OF PAYMENT

A. Payment will be made under:

PAY ITEM DESCRIPTION PAY UNIT

01200-1 Mobilization Lump Sum

December 18, 2009 Prospect RS 6-Re-Roofs 06100 - 1/1 Plywood sheathing

SECTION 06100

1. PART 1 - GENERAL

PLYWOOD SHEATHING

1.1 SUMMARY

A. This section specifies plywood roof sheathing.

1.2 RELATED SECTIONS

A. 07412 – Roof Replacement

1.3 QUALITY ASSURANCE

A. Furnish materials complying with the following:

1. Plywood.

a. Graded in accordance with APA PS 1-95. Furnish panels identifiable by a grade trademark of a recognized grading association. Index numbers listed (i.e. 24/0) may be larger but not smaller than shown.

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

2. PART 2 - PRODUCTS

2.1 MATERIALS

A. Exterior Sheathing.

1. Roof Sheathing.

a. (Concealed Surfaces) 5/8 inch CDX ext. plywood, 24/0; (Exposed surface) 5/8 inch C-C ext., plywood 24/0.

3. PART 3 - EXECUTION

3.1 CONSTRUCTION

A. Roof Sheathing.

1. Upon removal of existing roofing materials, notify CO of any deteriorated framing.

2. Apply plywood roof sheathing with the face grain at right angles to supports.

Stagger end joints. Nail with 8d nails 6 inch on center at edges and 12 inch on center at intermediate supports.

3. Sheathing shall be installed to be continuous over a minimum of two spans.

4. PART 4 - MEASUREMENT AND PAYMENT

4.1 METHOD OF MEASUREMENT

A. Measurement will be made based on actual quantity (AQ) installed.

06100-1 Plywood Sheathing Square Foot

December 18, 2009 Prospect RS 6-ReRoofs 07412 - 1/4 Roof Replacement

SECTION 07412

1. PART 1 - GENERAL

ROOF REPLACEMENT

1.1 SUMMARY

A. This section specifies work related to removing and disposing of existing composition shingle roofing materials and the furnishing and installing of new preformed metal roofs complete with flashings, trim, and other related accessories (see Figures 1 thru 6), and lowering all raingutters.

Figure 1 – building #1052 Figure 2 – building #1053

Figure 3 – building #1054 Figure 4 – building #1055

Figure 5 – building #1058 (rear view) Figure – building #1072

December 18, 2009 Prospect RS 6-ReRoofs 07412 - 2/4

1.2 RELATED SECTIONS

A. 06100 Plywood Sheathing

1.3 SUBMITTALS

A. Manufacturer's catalog cuts and installation recommendations.

B. Samples: Furnish color samples from manufacturer’s full range of colors.

1.4 DELIVERY, STORAGE, AND HANDLING

A. Deliver, handle, and store preformed panels and other manufactured items in such a way that they will not be damaged, deformed, or stained.

B. Comply with manufacturer's recommendations for protection.

1.5 WARRANTY

A. The Contractor shall warrant for two years from substantial completion that the standing seam roofing is free from defective workmanship. While roofing is under warranty, repairs shall be performed at the Contractor’s expense.

B. Furnish roof manufacturer’s standard written warranty, and cleaning & maintenance guide.

2. PART 2 - PRODUCTS

2.1 ROOFING MATERIALS

A. Metal roofing

1. Shall be “Snap Lock” standing seam metal roofing with 1” vertical ribs at 12” o.c..

Panels manufactured by Bruce and Dana Inc., or approved equal, color “brown”.

2. Panels shall be 24 GA

3. Panels are to be full length, from ridge to eave on roof.

There shall be no exposed or penetrating fasteners except where needed for trim and flashings.

4. Finish: Polyvinyl fluoride (PVF2) 70% Kynar 500, Hylar 5000 resin coating 0.2 mil corrosion resistant primer. 0.8 mil PVF2 = 1.0 mil dry film thickness.

B. Accessories

a. Sheet metal flashings, trim, closure strips, caps and other similar sheet metal accessories used in conjunction with preformed metal panels shall be of the same material, finish, and manufacturer as used for the panels. All flashings shall work as a System with roof panels to provide weather proof seal.

b. Ridge, eave, and rake trim: Use Bruce and Dana, Inc. or approved equal C. Concealed fasteners

1. Ultra Z low profile pancake head. Electro Zinc - Carbon Steel fasteners. #12 x1 bugle screw for wood applications. Pan-head, 9/16” screws for eave overhangs.

D. Exposed fasteners

1. Electro Zinc - Carbon Steel, Painted Hex head with neoprene washer. #12 x 2 woodfast for wood applications.

E. Underlayment

1. 30 lb ASTM felt

December 18, 2009 Prospect RS 6-ReRoofs 07412 - 3/4

F. Roof pipe jacks

1. 26 gauge galvanized metal with rubber boot sized to fit pipe or conduit, color brown.

3. PART 3 – EXECUTION

3.1 REMOVAL OF EXISTING ROOFING MATERIALS

A. Remove and dispose of all existing roof materials including all trim, flashing, fasteners, felt, etc. All removed roofing materials shall become the property of the contractor and shall be removed from National Forest Land, in accordance with applicable federal, state, and local regulations.

3.2 ROOF SHEATHING

A. Install sheathing in accordance with section 06100.

3.3 PREPARATION

A. Substrate to receive roofing shall be plumb and true, clean, even, smooth, as dry as possible and free from defects and projections, which might affect the installation.

Contractor must obtain written approval from CO for installed roof sheathing prior to installation of roofing materials.

3.4 UNDERLAYMENT

A. Install felt horizontal to eave with minimum 2” overlap of each row. Provide ice dam for first 36” layer.

3.5 ROOF PANELS

A. Apply panel with the standing seam parallel to the slope of the roof. Provide panels in full lengths, with no transverse joints except at the junction or ventilators, curbs, translucent panels, and similar openings. Install flashing to assure positive water drainage away from penetrations. Flash and seal at the ridge, eaves, rakes, and adjoining vertical wall surfaces.

B. Closing off ridge line: All roofing panels terminating under a flashing: i.e.: ridge, clearstory, endwall, shall have the last 1” of the pan area bent up at a 90 degree angle.

This shall be accomplished by making a 1” cut in the pan as close to the vertical seam as possible. Then using the factory supplied endbender or equal, bend the entire 1”x12 pan area upward. Flexo seal or equal shall be used to seal both cut areas, causing a watertight pan.

C. Provide minimum 1” fasteners: 2 at eave and 16” on center after that. Use 9/16” pan-head screws in overhangs at eaves; assure no penetration through eave sheathing.

3.6 FLASHING

A. All flashing and related accessories in connection with the preformed metal panels shall be provided as indicated and as necessary to provide a weather-tight installation.

B. Provide inverted “vee” type cricket flashing for all roof penetrations subject to damage from sliding snow loads.

C. Fastener spacing shall be in accordance with the panel manufacturer’s recommendations and as necessary to withstand the design loads indicated. Drive exposed penetrating type washers properly and drive so as not to damage factory applied coating. Exercise extreme care in drilling pilot holes for fastenings to keep drills perpendicular and centered. After drilling, remove metal filings and burrs from holes prior to installing fasteners. Fasteners

December 18, 2009 Prospect RS 6-ReRoofs 07412 - 4/4 shall not exceed that recommended by the manufacturer. Remove panels deformed or otherwise damaged by over-torqued fastenings, and provide new panels.

3.7 RAINGUTTERS

A. Lower all raingutters approximately 4” to allow sliding snow to clear gutters.

3.8 CLEANING AND TOUCH UP

A. Clean all exposed sheet metal work at completion of installation. Remove metal shavings, filings, nails, bolts, and wires from roofs on completion to prevent discoloration and harm to the panels and flashings. Remove grease and oil film, excess sealant handling marks, contamination from steel wool, fittings and drilling debris and scrub the work clean. All exposed metal surfaces shall be free of dents, creases, scratch marks.

B. Clean all rain gutters and downspouts.

C. Use magnetic pick-up tool to clean minimum area to 10 foot from around building.

D. Touch-up all scraped or scratched areas with manufacturer’s supplied paint. Apply paint only to scraped or scratched areas of roof panels.

4. PART 4 - MEASUREMENT AND PAYMENT

4.1 METHOD OF MEASUREMENT

A. Measurement will not be made as items will be based on the design quantities or lump sum quantity as shown in the Schedule of Items.

07412-1 Roof Removal, Building 1052 Square

07412-2 Roof Replacement, Building 1052 Square

07412-3 Roof Removal, Building 1053 Square 07412-4 Roof Replacement, Building 1053 Square

07412-5 Roof Removal, Building 1054 Square 07412-6 Roof Replacement, Building 1054 Square

07412-7 Roof Removal, Building 1055 Square 07412-8 Roof Replacement, Building 1055 Square

07412-9 Roof Removal, Building 1058 Square 07412-10 Roof Replacement, Building 1058 Square

07412-11 Roof Removal, Building 1072 Square 07412-12 Roof Replacement, Building 1072 Square

07412-13 Lower All Raingutters Lump sum

B. Earthwork Tolerances - Adjustments of horizontal or vertical alignment, within the tolerances specified in this contract, or shifts of balance points up to 100 feet shall be made by the contractor as necessary to produce the designed sections and to balance earthwork. Such adjustments shall not be considered as "Changes."

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

06100-1 Plywood Sheathing Square Foot