Building 1100 Roofing Overlay
Bid No. B15-02
***Specifications***
Bid RFI Questions Due:
Monday, November 17th, 2014 9:00AM
Gale Stevens, Buyer
gasteven@cabrillo.edu
Bid Documents: Gale Stevens, Buyer 831-477-5613
Cabrillo College: Joe Nugent, Director Facilities Planning & Plant Operations
Project Manager: Jon Salisbury, Innovative Construction Services, Inc.
Section: 600 TABLE OF CONTENTS SECTION 600‐ TABLE OF CONTENTS SECTION 700‐ SUMMARY SECTION 800‐ TRAFFIC CONTROL SECTION 900‐ MOBILIZATION SECTION 1000‐ DEMOLITION SECTION 1100‐ ROUGH CARPENTRY SECTION 1200‐ FIBERGLASS SHINGLES/OVERLAY SECTION 1300‐ BITUMINOUS ROOFING SECTION 1400‐ FLASHING AND SHEET METAL SECTION 1500‐ PAINTING SECTION 1600‐ NOTES CABRILLO COMMUNITY COLLEGE DISTRICT Page 1 of 30 1100_Roofing Overlay Section: 700 SUMMARY Part 1 General 1.01
WORK COVERED BY CONTRACT DOCUMENTS A. Project Identification: Building 1100 Roofing Overlay for Cabrillo Community college District 1.
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Project Location: Cabrillo College Aptos Campus 6500 Soquel Drive Aptos, ca 95003 Owner: Cabrillo Community College District DESCRIPTION A. Project Scope: 1.03
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Complete shingle overlay of all areas of the existing roof in accordance with the project specifications. 2.
Painting duties at all metal flashing, ventilation housings, metal ridge vent, roof penetrations and other roof apparatus. 3.
All necessary flashing, including six (6) custom flashing pieces, as per specifications section 1400. 4.
All mobilization, traffic control, pedestrian control, construction fencing, coordination and compliance with all safety regulatory bodies as necessary to successfully complete the project as per the specifications. USE OF PREMISES A. Construction access shall be established and limited to the Southeast corner of the 1100 building at the pedestrian entrance to the building. Construction fencing is to be utilized to completely block off this area from pedestrian traffic. Five parking stalls, immediately adjacent to the construction access, shall be dedicated for the Contractors use during construction. The Contractor is to clearly cordon off these stalls as he sees fit. B. All other areas shall be considered restricted without the consent and coordination of the District’s Representative. END OF SECTION CABRILLO COMMUNITY COLLEGE DISTRICT Page 2 of 30 1100_Roofing Overlay Section: 800 TRAFFIC CONTROL PART 1 GENERAL 1.01
SUMMARY A. This work shall conform to the provisions in Section 12, “Construction Area Traffic Control Devices,” of the Caltrans Standard Specifications and the provisions under “Maintaining Traffic” elsewhere in the special provisions, and shall consist of installing traffic and pedestrian signing, delineators, fencing, barricades, temporary base rock or plywood walkways, temporary driveways and flaggers as necessary to maintain safe passage, and these special provisions, and as directed by the College’s Representative. 1.02
REFERENCES A. State of California, Dept. of Transportation’s “Standard Specifications” latest edition. PART 2 PRODUCTS (No products are required in this Section) PART 3 EXECUTION 3.01 GENERAL A. Vehicular and pedestrian access to private property shall be maintained at all times unless the closing of such access if approved by the District’s Representative. The Contractor shall request in writing permission form the District’s Representative in advance of making such closing. B. Detours and all lights, signs, barricades, flag persons or other devices necessary to provide for safety and convenience shall e furnished, installed and maintained by the Contractor. Lighted or flashing barricades shall be used during hours of darkness. C.
Existing traffic signs shall be protected in place by the Contractor during the construction period. D. The Contractor shall place, remove, store, maintain, relocate, replace and dispose construction area traffic control devices and traffic control and construction area signs. E.
Personal vehicles of the Contractor’s employees shall not be parked on the traveled way or shoulder, including and section closed to the public traffic. F.
The Contractor shall notify local public safety authorities on this intent to begin work at least 5 working days before work id to begin. The Contractor shall cooperate with the local public safety authorities relative to handling traffic thought the area and shall make his own arrangements relative to keeping the working areas clear of parked vehicles. G. The full width of the traveled way shall be open for use by public traffic on Saturdays, Sundays and designated legal holidays, after 3:00pm on Fridays and the days preceding designated legal holidays, and when construction operations are not actively in progress. H. Designated Legal Holidays: Please inquire with the District’s Representative. CABRILLO COMMUNITY COLLEGE DISTRICT Page 3 of 30 1100_Roofing Overlay 3.02 CONSTRUCTION AREA SIGNAGE A. Construction area signs shall be furnished, installed, maintained and removed when no longer required in accordance with the provisions in section 12, “Construction Area Traffic Control Devices,” of the Caltrans Standard Specifications. Construction area signs shall be installed seven (7) calendar days prior to starting work. END OF SECTION CABRILLO COMMUNITY COLLEGE DISTRICT Page 4 of 30 1100_Roofing Overlay Section: 900 MOBILIZATION PART 1 GENERAL 1.01
SUMMARY A. Organization and mobilization of the Contractor’s resources, crews and equipment. B. Transporting construction plant and equipment to the jobsite and setting up of staging area. C.
Transporting various tools, materials, and equipment to the jobsite. D. Erection of temporary buildings and facilities as required for field offices, staging, storage, and construction operations. 1.02
DESCRIPTION A. This work shall confirm to Caltrans Standard Specifications section 11 “Mobilization” and shall consist of preparatory work and operations, including but not limited to, those necessary for the movement of personnel, equipment, supplies, and incidentals to the project site; for the establishment of all offices, building and other facilities necessary for work on the project and for all other work and operations which must be performed or costs incurred prior to beginning work on the various contract items on the project site. B. Mobilization shall also include assembly and delivery to the job site, equipment, tools, materials, and supplies necessary for the prosecution of work which are not intended to be incorporated in the work. 1.03
SUBMITTALS A. The Contractor submit a plan for the proposed layout of the construction site, including fencing, roads, parking, buildings, staging and storage areas, with‐in seven (7) days after the effective date of Notice to Proceed. PART 2 PRODUCTS (No products are required in this Section) PART 3 EXECUTION 3.01 SCHEDULE A. The Contractor shall submit a detailed construction schedule to the District’s Representative for review and approval prior to the pre‐construction meeting for the project. B. The Contractor shall implement necessary traffic control during mobilization to maintain roadway vehicular access as per Caltrans specifications section 11. END SECTION CABRILLO COMMUNITY COLLEGE DISTRICT Page 5 of 30 1100_Roofing Overlay Section: 1000 BUILDING DEMOLITION PART 1 GENERAL 1.01 SUMMARY A. Demolish and remove from site those items indicated on the specifications including but not limited to, curled shingles, plant matter, debris, hip cap, ridge cap and/or all flashing that would impede the successful completion of the project 1.02 QUALITY ASSURANCE A. Use an adequate number of skilled workers who are thoroughly trained and experienced in the necessary crafts and who are completely familiar with the specified requirements and the methods needed for proper performance of the work for this Section. PART 2 PRODUCTS (No products are required in this Section) PART 3 EXECUTION 3.01 SURFACE CONDITIONS A. Examine the areas and conditions under which work of this section will be performed. Correct conditions detrimental to timely and proper completion of the work. Do not proceed until unsatisfactory conditions are corrected. 3.02 DEMOLITION A. General: 1. Carefully study these specifications prior to start of demolition. 2. In the company of the Owner’s Rep visit the site and verify the extent and limits of the demolition to be performed under this Contract. B. Using only the means and equipment approved for this purpose by governmental agencies having jurisdiction, demolish and completely remove from the job site the existing construction designated to be removed. 1. Shut off, cap and otherwise protect public utility lines in accordance with the requirements of the public agency or utility having jurisdiction. 2. Remove existing galvanized flashing (with the exception of the Ridge Vent) as necessary to successful overlay and waterproof the existing roof. 3. Remove all existing hip shingles as necessary for the successful completion of the project. CABRILLO COMMUNITY COLLEGE DISTRICT Page 6 of 30 1100_Roofing Overlay Remove all existing ridge shingles as necessary for the successful completion of the project. 5. Remove all existing roof jacks and drip collars as necessary for the successful completion of the project. C. Demolished material shall be considered to be property of the Contractor and shall be completely removed from the job site. D. Use means necessary to prevent dust from becoming a nuisance to the public, to neighbors and to other trades being performed on or near the site. END OF SECTION 4.
CABRILLO COMMUNITY COLLEGE DISTRICT Page 7 of 30 1100_Roofing Overlay Section: 1100 ROUGH CARPENTRY PART 1 GENERAL 1.01 SUMMARY A. Provide wood, nails, bolts, screws, framing anchors and other items and perform rough carpentry for construction as specified herein and as needed for a complete and proper installation. B. Work covered in this section will become necessary if substrate conditions are damaged to the extent requiring replacement or patch work. 1.02 QUALITY ASSURANCE A. Use adequate numbers of skilled workmen who are thoroughly trained and experienced in the necessary crafts and who are completely familiar with the specified requirements and the methods needed for proper performance of the work of this Section. B. Codes and standards: 1.
In addition to complying with the pertinent codes and regulations of governmental agencies having jurisdiction, comply with: i.
Western Wood Products Association “Product Use Manual’; ii. American Plywood Association “Plywood Specification and Grade Guide.” DELIVERY STORAGE AND HANDLING 1.03 A. Protection: 1. Deliver the materials to the job site and store, in a safe area, out of the way of traffic, and shored up off the ground. 2. Identify framing lumber as to grades, and store each grade separately from other grades. 3.
Protect metals with adequate waterproof outer wrapping. 4.
Use extreme care in off‐loading of lumber to prevent damage, splitting and breaking off materials. PART 2 PRODUCTS 2.01 LUMBER MATERIALS A. Use lumber, S4S, kiln dried unless otherwise indicated, grade marked complying with the following requirements: 1. Girder Framing: #2 D.F. or better CABRILLO COMMUNITY COLLEGE DISTRICT Page 8 of 30 1100_Roofing Overlay 2.
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Joist framing: #2 D.F. or better Soffit framing: 2X6 T&G #1 or better 4.
Sill boards: Pressure treated for concrete 5.
Structural light framing: # 2 or better Lumber for misc. uses: Unless otherwise indicated, use standard grade lumber for support or other work, including bucks, nailer, blocking, furring, grounds, stripping and similar members. 6.
2.02 SHEATHING MATERIALS A. Plywood sheathing: Use APA rated, PS‐1 or APA PRP‐108. B. Roof sheathing: APA rated plywood, exterior, ¾” thickness. 2.03 ACCESSORIES A. Fasteners: Zinc Coated, Galvanized steel or exterior, high humidity, and treated wood locations. Plain finish elsewhere. B. Joist hangers: Galvanized steel, sized to suit framing. C. Anchors: 1.
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Hollow masonry: Toggle bolt. Solid masonry or concrete: Expansion shield and lag bolt. 3.
Steel: Bolt or ballistic fastener. D. Sill gasket on top of foundation wall: Glass fiber strip, width equal to plate dimension. E. Sill flashing; Galvanized steel or aluminum. 2.04 WOOD TREATMENT A. Fire retardant: AWPA Treatment C20, exterior type, chemically treated and pressure impregnated. B. Wood preservative, pressure treatment: AWPA Treatment C, using waterborne preservative with 0.25 percent retainage, rated for specific use as noted on the Drawings. C. Wood preservative, surface application: type and color as specified by the Owner. 2.05 OTHER MATERIALS A. Provide all other materials (including, but not limited to flashing and roof jacks) not specifically described but required for a complete and proper installation as selected by the Contractor subject to the approval of the Owner. PART 3 EXECUTION CABRILLO COMMUNITY COLLEGE DISTRICT Page 9 of 30 1100_Roofing Overlay 3.01 SURFACE CONDITIONS A. Examine the areas and conditions under which work of this Section will be performed. Correct conditions detrimental to timely and proper completion of the work. Do not proceed until unsatisfactory conditions are corrected. 3.02 WORKMANSHIP A. Install rough carpentry work to comply with the “Manual of House Framing” by the National Forest Products Association with recommendations of the American Plywood Association and/or as per the direction of the District’s Structural Engineer. B. Produce joints which are tight, true and well nailed, with members assembled in accordance with the Drawings and the applicable codes and regulations. 3.03 FRAMING A. Do not shim any framing component. B. All Exposed wood to be clear kiln dried lumber and is subject to rejection at Owners discretion. C. Curb all roof openings except where curbs are provided. Construct curbs of double members per side. D. Install blocking as required to support items of finish and to cut off draft openings, both vertical and horizontal, between ceiling and floor areas. E. On framing members to receive a finished surface, align the finish substrate to vey no more than 1/16 inch from the plane of surfaces furring and framing members. 3.04 INSTALLATION OF PLYWOOD SHEATHING A. Placement: Place plywood with face grain perpendicular to supports and continuously over at least two supports. Center joints accurately over supports. B. Protect plywood from moisture by use of waterproof covering until the plywood has been covered by the next component. END OF SECTION CABRILLO COMMUNITY COLLEGE DISTRICT Page 10 of 30 1100_Roofing Overlay Section: 1200 FIBER GLASS SHINGLE/OVERLAY PART 1 GENERAL 1.01 SUMMARY A. Provide granular surfaced fiber glass shingle roofing as specified herein and as needed for a complete and proper installation. 1.02 QUALITY ASSURANCE B. Use adequate numbers of skilled workmen who are thoroughly trained and experienced in the necessary crafts and who are completely familiar with the specified requirements and the methods needed for proper performance of the work for this Section. C. Perform work in accordance with NRCD Roofing Manual. 1.03 ENVIRONMENTAL REQUIREMENTS A. Do not install shingles when ambient temperatures are below that required by the product manufacturer. PART 2 PRODUCTS 2.01 FIBER GLASS SHINGLES A. Manufacturers: Option 1: CertainTeed “Landmark Pro” high definition or equal Option 2: GAF Ultra HD or equal A. All new roofing is to comply with ASTM D3018, Type 1 and with the following requirements I. Wind Resistance: Passes the wind‐resistance‐test requirements of ASTM D 3161 II. Fire‐test‐Response Classification: Class A. III. 40 Year Life or better. B. Use self‐sealing shingles complying with: 1. Organic felt base: ASTM D225; 2. Glass fiber base: ASTM D3018. 2.02 ACCESSORIES: CABRILLO COMMUNITY COLLEGE DISTRICT Page 11 of 30 1100_Roofing Overlay A. FELT UNDERLAYMENT: Type II , 36‐inch wide , asphalt‐saturated organic felt, complying with ASTM D 226 (no. 30) or ASTM D 4869. B. Asphalt plastic Cement: Non‐asbestos fiberated cement, complying with ASTM D 4586. C. Nails: Aluminum or hot‐dip galvanized steel, 0.120‐inch diameter barbed shank, sharp point, conventional roofing nails with a minimum 3/8‐inch diameter head and of sufficient length to penetrate ¾” inch into solid decking or at least 1/8 inch through plywood sheathing. D. Where nails are in contact with flashing, prevent galvanic action by providing nails made from the same metal as that of the flashing. 2.03 METAL TRIM AND FLASHING A. Sheet Metal Materials: Furnish the following sheet metal materials. 1. Galvanized steel sheets: ASTM A 526, G 90 (ASTM A 526M, z 275) hot dip galvanized steel with coating designation according to ASTM A 525 (ASTM A 525M), mill phosphatized where indicated for painting; 24 gage, unless otherwise indicated. B. Metal Drop Edge: Brake‐formed sheet metal with at least a 2‐inch roof deck flange and with a 3/8 inch drip at lower edge. Furnish in lengths of 8 or 10 feet. C. Metal Flashing: Job‐cut to sizes and configurations required. D. Vent Pipe Flashing: Lead conforming to ASTM B 749, Type 151121, at least 1/16 inch thick, unless otherwise indicated. Provide lead sleeve sized to slip over and turn down into pipe, soldered to skirt at slope of roof extending at least 4 inches from pipe onto roof. PART 3 EXECUTION 3.01 SURFACE CONDITIONS A. Examine the areas and conditions under which work of this Section will be performed. Correct conditions detrimental to timely and proper completion of the work. Do not proceed until unsatisfactory conditions are corrected. B. SPECIAL CONSIDERATIONS FOR OVERLAYS 1. Inspect the new bundles for moisture upon delivery. Wet bundles are to be returned and exchanged for new ones. 2. The existing substrate is to be made homogenous and uniformed in advance of installation of new shingles. Remove any curled shingle stubs. Nail existing flashing as necessary to ensure a flat surface. Sweep existing roof as necessary to ensure all debris is removed. 3.
Ensure the existing roof is dry in advance of installation of new shingles. Utilize tarps as necessary. 4.
Any mold, mildew, or plant growth are to be removed, neutralized and completely cleaned away in advance of installation of new shingles. Do not install a layer of felt between the systems. 5.
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The existing hip and some ridge cap (existing metal ridge vent is to remain) is to be torn off and removed in advance of installation of the new shingles. The existing drip collar and roof jacks should be removed. New drip collars and roof jacks are to be installed at all plumbing and roof penetration as applicable to match the existing configuration. Nails should be long enough to penetrate the deck as per the manufactures recommendation. A test area at an unobtrusive area should be utilized to ensure nail heads do not penetrate through the roofing plane at the interior and exterior of the building‐ No “shiners” will be allowed. Install all new flashings in accordance with the Flashing specifications. Remove the old flashings and fill the resultant void as necessary with shingle material. 10. Install a starter row of shingles along all eave lines. 11. Utilize the manufactures recommended fasteners for coastal environments. 12. Utilize the manufactures recommended nailing quantity and pattern for high wind environments. 3.02 PREPARATION A. Verify that plumbing stacks and roof penetrations are flashing to deck surface. B. Replace flashing as per specifications. C. Verify roof deck surfaces are dry, free from ridges, warps or voids. Broom clean surfaces. D. Verify Existing Ridge Vent and Gable and Flashing are free from defect or harm due to weathering and/or damaged during demolition. 3.03 FLASHING FABRICATION A. Form flashings to protect roofing materials from physical damage and shed water. Form sections in maximum possible lengths, free from distortion or defect B. Hem exposed edges of flashing 3/8” on underside. 3.04 INSTALLATION‐EAVE PROTECTION A. Existing Ridge Vent and Gable End Flashing to remain. B. Place eave and gable end metal flashings tight with fascia boards. Weather lap joints and seal with polyurethane caulking. Secure flange with approved fasteners. 3.05 INSTALLATION UNDERLAYMENT: Underlayment shall be lapped to provide a two layer system and shall extend to drip edge over MiraDri WIP 00 or equal in accordance with manufacturers’ specifications. A. Install underlayment perpendicular to slope on roof. CABRILLO COMMUNITY COLLEGE DISTRICT Page 13 of 30 1100_Roofing Overlay B. Place to plies of underlayment over unprotected area with ends and edges weather lapped and nailed. Stagger end laps of each consecutive layer. C. Seal items projecting through roof watertight using weather lap with plastic cement. 3.06 INSTALLATION ‐ VALLEY PROTECTION A. Place one layer of sheet metal flashing, minimum of 24 inches wide, centered over open valleys and crimped to guide water. Weather lap joints and nail in place. 3.07 INSTALLATION ‐ FIBERGLASS SHINGLES A. Install shingles in accordance with Manufacturer’s instructions. B. Use double course of shingles at eaves. C. Place shingles in straight coursing pattern with required weather exposure so as to produce double thickness over entire roof area. D. At the starter courses the new shingles are to extend slightly past (no more than 1/8”) the existing shingles. E. Starter, Hips and Ridge Cap: Utilize the Manufacturer’s matching starter, hip and ridge products at these areas. Color, Durability and aesthetic to match the Manufacture’s series for the roof shingle selected. Submit product information to the Owner’s Rep for approval in advance of ordering. F. Completely overlay existing roof to provide a weather tight roofing system. END OF SECTION CABRILLO COMMUNITY COLLEGE DISTRICT Page 14 of 30 1100_Roofing Overlay Section: 1300 BUILT UP BITUMINOUS ROOFING PART 1 GENERAL 1.01 SUMMARY A. Provide and install three ply built up bituminous roofing system (Miradri WIP or equal) on all perimeter low slope areas and continuing up past the transition beak a minimum of 18 inches. 1.02 QUALITY ASSURANCE A. Perform work in accordance with NRCA Roofing and Waterproofing Manual. B. Use adequate numbers of skilled workmen who are thoroughly trained and experienced in the necessary crafts and who are completely familiar with the specified requirements and the methods needed for proper performance of the work in this Section. 1.03 ENVIRONMENTAL REQUIREMENTS A. Do not apply roofing membrane during inclement weather. B. Do not apply roofing membrane to damp or frozen deck surfaces. C. Do not expose materials vulnerable to water or sun damage in quantities greater than can be weatherproofed during same day. 1.04 WARRANTY A. Provide five year warranty including coverage to building and contents resulting from failure to prevent penetration of water. PART 2 PRODUCTS 2.01 SHEET MATERIALS A. Base Sheet: ASTM D2626, No. 40, plain. B. Perma Ply R, 2 plies, 22 pounds: ASTM D2178. C. Asphalt Saturated Organic Felts: ASTM D226, No. 30. D. Fiber Emulsion Surface, 3 Gallons. 2.02 BITUMINOUS MATERIALS A. Asphalt Bitumen: ASTM D312. B. Roofing Nails: Stronghold Galvanized roofing nails, 12 gauge, 7/16 inch head long driven through tin caps, size as required to suit application. CABRILLO COMMUNITY COLLEGE DISTRICT Page 15 of 30 1100_Roofing Overlay PART 3 EXECUTION 3.01 SURFACE CONDITIONS A. Examine the areas and conditions under which work of this Section will be performed. Correct conditions detrimental to timely and proper completion of the work. Do not proceed until unsatisfactory conditions are corrected. B. Wood Deck: Verify flatness and tight joints of decking. Fill knotholes and gaps with latex filler. 3.02 VAPOR RETARDER APPLICATION – WOOD DECK A. Normal weight of materials per 100 square feet of roof area, 149 pounds as follows: 1. Base Sheet: ASTM D2626, No. 40, plain. 2. Perma Ply R, 2 plies, 22 pounds: ASTM D2178. 3. Asphalt Saturated Organic Felt 2plies (2@ 30 = 60): ASTM D226, No. 30. 4. Fiber Emulsion Surface, 3 Gallons. 3.03 MEMBRANE APPLICATION A. Install roofing membrane in two plies of roof felts. B. Apply felts smooth, free of air pockets, wrinkles, “fish mouths”, lap joints or tears. C. Extend felts up cants to vertical surfaces. D. When inclement weather is expected, install two plies of felts and asphalt glaze for cutoff at end of days operation. END OF SECTION CABRILLO COMMUNITY COLLEGE DISTRICT Page 16 of 30 1100_Roofing Overlay Section: 1400 FLASHING AND SHEET METAL PART 1 GENERAL 1.01 SUMMARY A. Provide flashing and sheet metal not specifically described in other Sections of these Specifications but required to prevent water penetration through the exterior shell of the building and as needed for a complete and proper installation. B. Verify existing ridge vent and gable end flashing are free from defect or harm done to weathering and/or damage during demolition. Report finding to the Owner Representative in advance of concealing any work. 1.02 QUALITY ASSURANCE A. Use adequate numbers of skilled workmen who are thoroughly trained and experienced in the necessary crafts and who are completely familiar with the specified requirements and the methods needed for proper performance of the work for this Section. B. Perform work in accordance with the following: 1. Aluminum Association – Aluminum Construction Manufacturer: Aluminum Sheet Metal Work and Building 2. Construction. 3. Copper Development Associations Contemporary Copper, a Handbook of Sheet Copper Fundamentals, 4. Deign, Details and Specifications, Copper Roofing – A Practical Handbook, and Sheet Copper Applications. 5. National Roofing Contractors Association – Roofing Manual. 6. SMACNA – Architectural Sheet Metal Manual. 1.03 DELIVERY, STORAGE AND HANDLING A. Stack preformed material to prevent twisting, bending or abrasion and to provide ventilation. PART 2 PRODUCTS 2.01 SHEET MATERIALS A. Galvanized steel: ASTM A525, G90 (ASTM A526M, Z 275) hot dip galvanized steel coating designation according to ASTM A 525 (ASTM A 525M), mill phosphatized where indicated for painting. 24 gauge, unless otherwise noted. CABRILLO COMMUNITY COLLEGE DISTRICT Page 17 of 30 1100_Roofing Overlay B. Metal Drip Edge: Brake‐formed sheet metal with at least a 2 inch roof deck flange and with a 3/8” drip at lower edge. Furnish in length of 8’ to 10’ C. Metal Flashing: Job‐cut to size and configuration as required. D. Vent Pipe Flashing: Provide sleeve to slip over and turn down into the pipe; solder to skirt at the slope of the roof extending at least 4” from pipe onto roof. 2.02 ACCESSORIES: A. Fasteners: Finish exposed fasteners the same as flashing metal. 2.03 COMPONENTS A. Fabricate four (4) custom flashing corners for the roof to rake fascia/barge rafter intersection at the upper roof plane North and South. Reference section 1600 1.
The existing flashing at these locations is to be removed. 2.
New flashing is to be counter flashed into the existing flashing package at the gable end roof to wall. 3.
New flashing is to have machine bent corners, soldered joints and a 3/8” hemmed seem at the underside. 4.
New flashing is to be primed and painted in accordance with the specifications from section 1500 B. Fabricate two custom ridge saddles to be installed at the North and South sides of the existing ridge metal vent. Reference section 1600 2.04 a.
New flashing is to saddle over the top of the ridge line. b.
New flashing is to sit at least 6” onto the horizontal roof plane. At the existing metal ridge vent the new flashing is then break 90 degrees, match the vertical contour of the North/South sides of the existing metal ridge vent, with the top edge to extend under the eave line protected from weather and wind driven water. All exposed edges are to be hemmed 3/8” at the underside. c.
New flashing is to be riveted to the existing metal ridge vent with twelve (12) ¼” aluminum rivets per side. d.
New flashing is to be prepped, primed and painted in accordance with the specifications from section 1500. FABRICATION A. Form components true to shape, accurate in size, square and free from distortion or defects. Form pieces in longest practical lengths. CABRILLO COMMUNITY COLLEGE DISTRICT Page 18 of 30 1100_Roofing Overlay B. Hem exposed edges 3/8” inches on underside; miter and seal corners. Fabricate vertical faces with bottom edge formed outward 1/4 inch and hemmed to form dip. PART 3 EXECUTION 3.01 SURFACE CONDITIONS A. Examine the areas and conditions under which work of this Section will be performed. Correct conditions detrimental to timely and proper completion of the Work. Do not proceed until unsatisfactory conditions are corrected. 3.02 INSTALLATION A. All flashing as necessary for the successful completion of the project. C.
Install starter and edge strips and cleats. D. Apply plastic cement compound between metal work and felt flashings. E. Fit components tight in place. Solder/Weld all joints tight and true. Make corners square, Surfaces true and straight in planes and lines accurate to profiles. F. Seal joints watertight. END OF SECTION CABRILLO COMMUNITY COLLEGE DISTRICT Page 19 of 30 1100_Roofing Overlay Section: 1500 PAINTING PART 1 GENERAL 1.01 SECTION INCLUDES A. This section includes a surface preparation and field painting of the following: a. Prepare, prime, and paint all sheet metal surfaces, including, but not limited to, ridge vent, ventilation piping, ventilation domes, roof to wall flashing, corner flashing and all roof penetrations, including all existing roof apparatus. b.
Prepare, prime, and paint all flashing intricate to the gable walls and/or stucco finished appendages shall be caulked and painted in accordance with Section 1500. B. Paint as used herein means all coating systems materials, including primers, emulsions, enamels, stains, sealers, fillers, and other applied materials whether used as prime, intermediate, or finish coats. C. Unless otherwise specified, shop priming of ferrous metal items is included under various sections for structural steel, miscellaneous metal, hollow metal work, and similar items. For shop‐fabricated or factory built mechanical, electrical, accessories or equipment. 1.02 SUBMITTALS A. Product Data 1. Provide an inclusive list of required coating materials. Indicate each material and cross‐reference specific coatings, finishing systems, and/or applications. 2. Provide manufacturer’s technical information, including label analysis and instruction for handling, storing, and applying each coating material proposed for use. 3. Certification by manufacturer of compliance for local regulations controlling se of volatile organic compounds (VOC’s). B. Samples 1.
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Upon receipt of Owner’s color schedule provide samples for Owner’s review in a fashion that will not delay progress of work and give the Owner time for verification of compliance. Provide stepped samples, delineating each coat, including block fillers and primers. Use representative colors when preparing samples for review. Provide list of materials and applications for each coat and each sample. Label each sample for location and application. i.
Provide three 8‐1/2 by 11 inch painted samples of each color and material, with texture to simulate actual conditions. Resubmits may be necessary if required sheen, color, or texture is not achieved. CABRILLO COMMUNITY COLLEGE DISTRICT Page 20 of 30 1100_Roofing Overlay ii.
On wood surfaces, provide two 4” x 8” samples of natural and stained wood finish. Label each as to location and application. iii. On concrete masonry and plaster/stucco provide two 4” x 8” samples of masonry or plaster for each type of finish and color, defining filler, prime and finish coat. iv. Do not proceed with painting until color samples have been accepted. 1.03 QUALITY ASSURANCE A. Codes and Standards: Confirm work and materials to regulations of State Fire Marshal, Safety Color Coding in conformance with OSHA, and all local or State Ordinances, having jurisdiction. Conform to the most stringent requirements and authorities having jurisdiction. 1.
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1.04 Conform to the requirements of the California Air Resources Board (CARB). Approval Equal: Materials or products specified herein by trade name shall be provided as specified. References to brand names shall be interpreted as establishing a standard of quality and shall not be construed as limiting competition. Brand names were used in specifications shall be presumed to be followed by words “or approved equal”. Such approval will be granted only as set forth in the Contract Documents and with certification that materials submitted are equal or superior to brand named in specifications in construction, efficiency and utility. 1. Submittals for approval as equal shall include manufacturer’s product data sheet for each product indicating composition and percent by weight. DELIVERY AND STORAGE A. Deliver materials to Project Site in original, new and unopened packages and containers bearing manufacturer’s name and label, and following information: 1.
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Name or title of material. Product Description (Generic Classifications or Binder Type). Fed Spec. number if applicable. Manufacturer’s stock number and date of manufacturer. Manufacturer’s name. Contents by volume, for major pigment and vehicle constituents. Thinning instructions. 8.
Application instructions. 2.
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Color name and number. 10. VOC Content. B. Storage: Store paint materials in a single suitable place in compliance with health and fire regulations. Keep storage neat and clean. All damage to storage area or to its surroundings shall be cleaned, repaired and refinished and otherwise made good to satisfaction of Owner. Remove oily rags, waste and the like from the building each night and take every precaution to avoid danger of fire. 1.05 PROJECT CONDITIONS A. Apply water‐based paints and solvent‐thinned paints only when temperatures of surfaces to be painted and surrounding air temperatures are within the rage permitted by paint manufacturer’s printed instructions. B. Do not apply paint in rain, fog or mist; or when relative humidity exceeds 85 percent; or at temperatures less than 5 degrees F; or to damp or wet surfaces. C.
Painting may be continued during inclement weather if areas and surfaces to be painted are enclosed and heated within temperature limits specified by paint manufacturer during application and drying periods. D. Painting Work by Other Trades: Examine drawings and specifications, including requirements specified in other sections for painting work by other trades. Notify Architect in writing of any conflict between work of this section and that of other trades and sections, and any errors, omissions or impractical requirements. All surfaces that are left unfinished by the requirements of their specification shall be painted or finished as specified as work for this section. PART 2 PRODUCTS 2.01 MATERIAL QUALITY A. Provide best quality grade of various types of coatings as regularly manufactured by acceptable paint materials manufacturers. Materials not displaying manufacturer’s identification as standard, best‐grade product will not be acceptable. B. Unless otherwise specified or approved, use paint products of one manufacturer. Oils, thinners, dryers, primers and catalysts shall be approved for use of manufacturer of paint. C. Provide paints of durable and washable quality. Do not use paint materials which will not withstand normal washing as required to remove pencil marks, ink, ordinary soil, etc., without showing discoloring, loss of gloss, staining, or other damage. D. Provide undercoat paint produced by same manufacturer as finish coat. Use only thinners approved by paint manufacturer, and use only within recommended limits. 2.02 MANUFACTURERS CABRILLO COMMUNITY COLLEGE DISTRICT Page 22 of 30 1100_Roofing Overlay A. Manufacturer’s catalog names and numbers are used to aid in establishing kind and quality of material required and are not used as an indication of color desired. B. Opaque Paint and Hardwood Transparent Finish Materials: Systems specified herein, are products of ICI Paints. Equivalent opaque and hardwood transparent finish products manufactured by the following will be acceptable, as approved. i. Pratt & Lambert, Inc. ii. Kelly Moore iii. Sherman Williams Co. iv. Dunn‐Edwards v.
Pittsburgh Plate Glass Co. 2.03 COLORS AND FINISHES A. Paint Coordination: Provide finish coats which are compatible with the prime paints used Preview other sections of these specifications in which prime paints are to be provided to ensure compatibility of the total coatings systems for the various substrates. Upon request from other subcontractors, furnish information on characteristics of specific finish materials, to ensure that compatible prime coats are used. Provide barrier coats over incompatible primers or remove and re‐prime as required. Notify Architect in writing of anticipated problems using specified coating systems with substrates primed by others. PART 3 EXECUTION 3.01 EXAMINATION A. Examine substrates and conditions under which painting will be performed for compliance within requirements for application of paint. Do not paint application until unsatisfactory conditions have been corrected and surfaces receiving paint are thoroughly dry. B. Starting of paining will be construed as applicator’s acceptance of surfaces and conditions within a particular area. 3.02 SURFACE PREPARATION A. Clean and prepare surfaces to be painted following paint manufacturer’s written instructions and as specified, for each particular substrate condition. B. Clean surfaces to be painted before applying paint or surface treatments. Remove oil and grease prior to mechanical cleaning. Program cleaning and painted to contaminants from cleaning process will not fall onto wet newly‐painted surface. C. Clean all surfaces being painted of all loose dirt and dust before painting is started. CABRILLO COMMUNITY COLLEGE DISTRICT Page 23 of 30 1100_Roofing Overlay D. Remove hardware, hardware accessories, switch and receptacle plates, surface‐mounted lighting fixtures, finish frames of recessed lighting fixtures, escutcheons and plates, surface‐mounted equipment, free‐
standing equipment blocking access to painted surfaces, grilled and louvers at ducts opening into finished spaces and other items as required prior to surface preparation and painting operations, Following completion of painting of each space or area, reinstall removed items. E. Provide barrier coats over incompatible primers or remove and re‐prime. F. Wood: All Surfaces shall be clean and dry. Sandpaper wood (except saw‐textured wood, if any) smooth to provide an even surface and then dust off and wipe clean. Touch up all knots and pitch pockets with shellac on interior wood and with outside seal on exterior work. After priming coat has been applied thoroughly: fill all nail holes, irregularities and cracks; use plastic wood filler or stained or natural finish and putty for painted work. G. Cementitious Materials: a. Plaster Surfaces: fill all holes, cracks and abrasions with plaster patching compound, properly prepared, applied and smoothed off to match adjoining surfaces. Do not use sandpaper on plaster surfaces. Plaster surfaces that are to receive enamel finishes shall be allowed to cure for at least three weeks. b. Concrete and Masonry: Properly prepare surfaces where efflorescence exists with approved acid base wash. Fill minor surface defects and cracks with a mixture of acrylic paint and spackling compound. c. Determine alkalinity and moisture content of surfaces by performing appropriate tests. If surfaces are sufficiently alkaline to cause the finish paint to blister and burn, correct this condition before applications. Do not paint surfaces where moisture content exceeds that permitted in manufacturer’s written instructions. d. Ferrous Metals: Clean galvanized ferrous‐metal surfaces that have not been shop coated; remove oil, grease, dirt, loose mill scale, and other foreign substances. Use solvent or mechanical cleaning methods that comply with Steel Structures Painting Council’s (SSPC) recommendations. Where rust and scale is present, wire brush and sandpaper clean. Clean field welds and abraded portions of field welded and erected ferrous metal components. e. Galvanized Surfaces: clean galvanized surfaces with non‐petroleum‐based solvents so surface is free of oil and surface contaminants. Remove pretreatment from galvanized sheet metal fabricated from coil stock by mechanical methods. Spot prime field connections, welds, soldered joins, and burned and abraded portions. Factory finished surfaces indicated to be repainted shall be sanded and etched to increase adherence of finish coats. f. Existing Building Surface Reparation: i. Metal Surfaces: If exiting finish is sound and shows only normal ware chalking, sand lightly and dust. Wherever existing finish is badly checked, cracked, alligator peeling or CABRILLO COMMUNITY COLLEGE DISTRICT Page 24 of 30 1100_Roofing Overlay in general poor condition completely remove existing finish by liquid removed or other means. ii. Concrete: Sound chalk; use approved surface conditioner. Light Chalky; stub with stiff fiber brush. Heavy Chalked, blistered alligator, cracked, loose, or scaling; sandblast clean. Fill all minor cracks. Loose or defective concrete shall be replaced with 1 L.M. Scofield Co., “Speed Crete” or approved equal. iii. Plaster: Clean by washing with milk alkali and rinse thoroughly. Remove all loose, blistered or otherwise defective paint, smooth and feather by sanding. Plaster on which existing paint is loose, peeling, shows poor adhesion, checking, or is otherwise unsuitable for painting is to be stripped to bare plaster. Cut out and fill plaster cracks with plaster patching compound. Spot prime all plaster patches. 3.03 MATERIAL PREPARATION A. Mix and prepare painting materials following manufacturer’s direction. B. Store materials not in actual use in tightly covered containers. Maintain containers used in storage, mixing and application of paint in a clean condition, free of foreign materials and residue. C. Stir materials before application to produce a mixture of uniform density, stir are required, strain material before using. D. Use only thinners approved by paint manufacturer, and only within recommended limits. 3.04 APPLICATION A. Apply paint following manufacturer’s directions, Use applicators and techniques best suited for substrate and type of material being applied. B. Do not paint over dirt, rust, scale, grease, moisture, scuffed surfaces, and conditions otherwise detrimental to formation of a durable paint film. C. Utilize polyurethane caulking, compatible with the finish coatings, on all cracks, but joints, flashing seems, exposed fastener heads, trim intersections and voids. D. Apply paint to clean, dry, prepared surfaces only. Apply all paint material evenly, smoothly flowed on without runs or sags. E. Provide finish coats compatible with primers used. F. Minimum Coating Thickness: Apply each material at no less than manufacturer’s recommended spreading rate, to provide a total dry film thickness of not less than 5.0 mils for the entire coating system or prime CABRILLO COMMUNITY COLLEGE DISTRICT Page 25 of 30 1100_Roofing Overlay and finish coats for 3‐coat work. Provide a total dry film thickness of not less than 3.5 mils for the entire coating system of prime and finish coat for 2‐coat work. G. The number of coats and film thickness requires is the same regardless of application method. Do not apply succeeding coats until previous coat has cured as recommended by the manufacturer. Sand between applications where sanding is required to produce and even smooth surface following manufacturer’s directions. H. Apply additional coats when under coats, stains or other conditions show through final coat of paint, until paint film is of uniform finish, color and appearance. Give special attention to ensure that surfaces, including edges, comers, crevices, welds, and exposed fasteners, receive a dry film thickness equivalent to that of flat surfaces. I.
Paint surfaces behind movable equipment and furniture same as similar exposed surfaces. Paint surfaces behind permanently fixed equipment or furniture with prime coat only before final installation of equipment. J.
Completed Work: Match approved samples for color, texture, and coverage. Remove, refinish, or repaint work not in compliance with specified requirements. 3.05 CLEANING AND PROTECTION A. Cleanup: At the end of each work day, remove empty cans, rags, rubbish, and other discarded paint materials from the site. B. Protection: Protect work of other trades, whether to be painted or not, against damage by painting. Correct damage by cleaning, repairing or replacing, and repainting, as acceptable to Architect. C. Provide “Wet Paint” signs and barricades to protect newly‐painted finishes. Remove temporary protective wrappings provided by others for protection of their work, after completion of painting operations. D. At completion of work or other trades, touch‐up and restore damaged and defaced painted surfaces. 3.06 PAINT SYSTEM SCHEDULE A. Provide following paint systems for substrates indicated. B. Exterior Surfaces: 1.
Cement Plaster, (Flar 100 percent Acrylic): i. 1st Coat: Seal‐Crete or Eqv. ii. 2nd and 3rd Coat: Stain blocking Acrylic iii. Body (Two Coats): Kelly Moore 1245 exterior paint iv. Trim (Two Coats): Kelly Moore 1250 exterior paint 2.
Galvanized Metal (Enamel Finish): CABRILLO COMMUNITY COLLEGE DISTRICT Page 26 of 30 1100_Roofing Overlay i. Devprep 88 or eqv. ii. 1st Coat: Galvanized Primer iii. Body (Two Coats): Kelly Moore 1245 exterior paint iv. Trim (Two Coats): Kelly Moore 1250 exterior paint 3.
Ferrous Metal and Aluminum (Enamel Finish): i. 1st Coat: ICI Devguard 4160 ii. 2nd and 3rd Coat: ICI Devguard 4160 iii. Body (Two Coats): Kelly Moore 1245 exterior paint iv. Trim (Two Coats): Kelly Moore 1250 exterior paint C.
Paint: to be specified as (or exact equivalent) 1.
Finish‐Kelly Moore‐5800 DTM Acrylic Gloss Ext‐two Coats END OF SECTION CABRILLO COMMUNITY COLLEGE DISTRICT Page 27 of 30 1100_Roofing Overlay Section: 1600 NOTES Part 1 Roof: Custom Flashings A. Saddle Flashing at ridge line: B. Rake to Roof Flashing: CABRILLO COMMUNITY COLLEGE DISTRICT Page 28 of 30 1100_Roofing Overlay PART: 2 Roof Aerial A. Opinion of existing roof dimensions CABRILLO COMMUNITY COLLEGE DISTRICT Page 29 of 30 1100_Roofing Overlay END OF SECTION CABRILLO COMMUNITY COLLEGE DISTRICT Page 30 of 30 1100_Roofing Overlay