ROOF REPLACEMENT AND ASSOCIATED WORK AT THE LOWELL HIGH SCHOOL 50 FATHER MORISSETTE BLVD. LOWELL, MASSACHUSETTS August 3, 2018 Prepared For: Prepared By: City of Lowell Gale Associates, Inc. 375 Merrimack Street 15 Constitution Drive Lowell, MA 01851 Bedford, NH 03110 Gale JN 833360 ROOF REPLACEMENT AND ASSOCIATED WORK AT THE LOWELL HIGH SCHOOL 50 FATHER MORISSETTE BLVD. LOWELL, MASSACHUSETTS GALE JN 833360 TECHNICAL SPECIFICATIONS TABLE OF CONTENTS DIVISION 1 - GENERAL REQUIREMENTS DIVISION 1 Section 01 10 00 – Summary of Work Section 01 22 00 – Unit Prices Section 01 23 00 – Alternates Section 01 33 00 – Shop Drawings and Submittals Section 01 50 00 – Temporary Facilities Section 01 63 00 – Weather Protection and Materials Storage Section 01 77 00 - Project Close-Out TECHINICAL SPECIFICATIONS DIVISION 2 Section 02 41 19 – Selective Demolition DIVISION 3 Section 03 10 00 – Concrete Formwork (to be included with the Masonry Filed-Sub Bid) Section 03 45 00 – Cast Stone Replacement (to be included with the Masonry Filed-Sub Bid) Section 03 60 00 – Concrete Repairs (to be included with the Masonry Filed-Sub Bid) DIVISION 4 Section 04 00 01 – Masonry Filed Sub-Bid Requirements Section 04 50 00 – Masonry (Filed Sub-Bid Required) DIVISION 5 Section 05 40 00 – Cold Form Metal Framing Metal Roof Ladders – Section 05 51 33 DIVISION 6 Section 06 10 00 – Rough Carpentry DIVISION 7 Section 07 42 13 – Metal Wall Panels Section 07 53 00 – Elastomeric Roofing and Flashing DIVISION 8 Section 08 10 00 – Doors and Hardware Section 08 51 00 – Metal Windows Section 08 95 00 – Insulated Translucent Panel Skylight System (Alternate No. 1) Table of Contents - i ROOF REPLACEMENT AND ASSOCIATED WORK AT THE LOWELL HIGH SCHOOL 50 FATHER MORISSETTE BLVD. LOWELL, MASSACHUSETTS GALE JN 833360 TABLE OF CONTENTS (continued) DIVISION 9 Section 09 90 00 – Painting and Coating DIVISION 10 – 21 – NOT USED DIVISION 22 Section 22 00 01 – Plumbing Filed Sub-Bid Requirements Section 22 30 00 – Plumbing (Filed Sub-Bid Required) DIVISION 23 – 25 – NOT USED DIVISION 26 Section 26 10 00 – Temporary Mechanical/Electrical Disconnects DIVISION 27-42 – NOT USED CONTRACT DRAWINGS G100 Cover Sheet G101 Conceptual Tapered Insulation Plan & Roof Cross Sections C101 Site Plan AD102 Partial Roof Area Demolition Plan AD103 Partial Roof Area Demolition Plan AD201 Partial Rising Wall Demolition Plan A101 Overall Roof Area Plan A102 Partial Roof Area Plan A103 Partial Roof Area Plan A201 Partial Rising Wall Elevations A202 Partial Penthouse Elevations A501 Details A502 Details A502 Details A503 Details A504 Details A505 Details A506 Details A507 Details A509 Details I:\833360\02 Design\specs\833360 00 00 10 Cover_TOC.doc Table of Contents – ii Roof Replacement and Associated Work at the Lowell High School Lowell, MA Gale JN 833360 SUMMARY OF WORK SECTION 01 10 00 PART 1 - GENERAL 1.1 DESCRIPTION OF WORK In general, the Contractor and Sub-contractor(s) shall supply all labor, transportation, materials, equipment, temporary protection, tools and appliances necessary for the proper completion of the work, as required in the Specifications, in accordance with good construction practice, and as required by the materials manufacturer. The work includes, but is not limited to, the following items: A. General Contractor 1. Contractor shall obtain all permits necessary to transport and install all materials affected by the scope of work, including the work of the sub- contractors. 2. Install and furnish new fully adhered EPDM roofing assembly and walkway pads in area indicated in Contract Drawings. 3. Infill roof openings with metal deck and structural steel as indicated on the Contract Drawings. 4. At roof area D Install vent/exhaust extensions with framed box units to house the extensions and a ballasted, non-penetrating guardrail system where indicated on the Contractor Drawings. 5. Existing steel lintels above window units are to remain. General Contractor to remove interior acoustic ceiling tiles as needed to perform the work and reinstall. Contractor responsible to replace in kind any damage to the interior finishes at no additional cost to the owner. 6. At Roof Area D roof skylight openings under base bid are to be infilled or under alternate number one are to receive new skylights. Refer to Section 01 23 00 – Alternates, 07 53 00 Elastomeric Roofing and Flashings, and 08 95 00 Insulated Translucent Panel Skylight System for limits and work activities. 7. Install new windows, sealants, and flashings as indicated in the Contract Drawings. 8. Install all blocking required to achieve a minimum curb height of 8-inches above the new roofing assembly, all insulation surrounding ductwork above the roof, and all wooden sleepers to be concealed as indicated in the Contract Drawings. SUMMARY OF WORK 01 10 00-1 Roof Replacement and Associated Work at the Lowell High School Lowell, MA Gale JN 833360 9. Install new strainer, clamping rings, clamps, extenders, and any other accessories for complete roof drain assembly. Install new drain bowl collar extensions to accommodate the required minimum 5 1/2” of insulation. a. Route and snake all roof drains to nearest manhole / drain out exit location. Perform at beginning of roofing operations and after substantial completion. 10. Install new sheet metal sleeves, flashings, and sealants for overflow and through wall scupper locations indicated on Contract Drawings. Coordinate this work with the Masonry Contractor per Section 04 50 00 for limits and work activities. 11. Install new gutter, downspout strainer, downspout, and splash blocks where indicated on the contract documents. 12. Field flash all pipe penetrations, coordinate vent pipe flashing work with the Plumbing Contractor Section 22 30 00 for limits and work activities. 13. Reinstall, and reconnect existing rooftop equipment and associated mechanical / electrical penetrations on new curbs to provide minimum 8-inch flashing upturn height above new roof assembly. Provide miscellaneous electrical and mechanical extensions and reconnections. 14. Reinstall existing electrical conduits to a minimum of 3.5 inches above the new finished roof height with a new prefabricated conduit support system indicated on the Contract Drawings. Any utility shutoff to be coordinated with and approved by the Owner prior to work, provide a minimum 48-hour notice. 15. Install new wall mounted roof ladder rails, rungs, brackets, and fasteners. Provide all welds to complete fabrication. 16. Install new wood blocking, wood nailers and exterior grade plywood to accommodate the installation of the new roofing assembly. Install at all locations shown in the Contract Drawings. 17. Install and furnish new marine grade plywood backing for all vertical membrane flashing and metal wall panel installation as identified on the contract drawings. 18. Install metal wall panels, metal framing, and air/vapor retarder, at rising masonry and metal framed walls as identified in the Contract Drawings. 19. Install structural wood framing, joist hangers, associated framing, metal deck, and steel angles at locations to be infilled as identified in the Contract Drawings. SUMMARY OF WORK 01 10 00-2 Roof Replacement and Associated Work at the Lowell High School Lowell, MA Gale JN 833360 20. Prime and paint interior face of CMU block to match the existing wall at roof area D wall infills. Coordinate work time with the City, as the interior of the school rooms may be occupied during school hours. Feather and blend into surrounding area for cohesive finish. 21. Install penthouse roof insulated metal door, frame, and accessories where indicated on the Contract Drawings. 22. Clean and restore all areas affected by the work including the site to the satisfaction of the Owner. B. Masonry Filed Sub 1. Install two courses of brick masonry, mortar, and flashings along on all parapets indicated on the Contract Drawings. 2. Install new brick masonry units, concrete masonry units at roof area D wall openings, through wall flashings, counter flashings, weeps, termination bars, sealants, and accessories as indicated on the Contract Drawings. Coordinate this work with the Roofing Contractor per Section 07 53 00 for limits and work activities. a. Coordinate work time with the City, as the interior of the school rooms may be occupied during school hours. 3. Grout solid chipped concrete area at roof drains and prepare to receive drain system. Coordinate this work with the Roofing Contractor per Section 07 53 00 and Plumbing Contractor per Section 22 30 00 for limits and work activities. 4. Grout Solid CMU parapet walls where indicated on the Contract Documents. 5. At Roof Area D Install CMU Block in wall opening coordinate with roofing contractor section 07 53 00 – Elastomeric Roofing and Flashing for limits and work activities. 6. Reinstall existing terra cotta parapet caps in area indicated in Contract Drawings. Contractor is responsible for replacing any damaged caps at no additional cost to the owner. Coordinate with Section 09 90 00 Painting and Coating for limits and work activities. 7. Install precast stone and terra cotta caps with metal dowel anchors and flashings at areas identified on the Contract Drawings. 8. Upon completion of all cast stone, concrete, and masonry repairs, recoat all existing, salvaged, and new parapet caps. 9. Clean and restore all areas affected by the work including the site. SUMMARY OF WORK 01 10 00-3 Roof Replacement and Associated Work at the Lowell High School Lowell, MA Gale JN 833360 C. Plumbing Filed Sub 1. Install new cast-iron roof drain bowls and accessories at locations indicated on Contract Drawings. 2. Install vent pipe extensions and no-hub connections where required. 3. Raise and reconnect existing gas line to a minimum of 3.5 inches above the new finished roof height in coordination with Section 01 22 00 Unit Prices and Section 07 53 00 for limits and work activities. 4.