M107 1512_6_ESR_B30_R1.pdf

Design-Build Request for Proposal RTA Hurricane Florence Recovery Training and Storage Facilities 3 March 202027 May 2020 Marine Corps Base Camp Lejeune, North Carolina Rev 01

PART 3 - CHAPTER 6/ESR B30 - P1512F RENOVATE M107 - Page 1

B30 ROOFING – P1512F RENOVATE M107

B30 GENERAL SYSTEMS DESCRIPTION

Roof systems shall be watertight and compatible with facility function, construction, and service conditions. Provide complete roof system design and construction services for the entire new facility roof system, including all ancillary and incidental work necessary for a complete, new, watertight roof system installation.

Submittal Requirements: Components of a minimum roof submittal shall include the roof plan, method of drainage, standard details and details unique to the project, wind load calculations and requirements.

Provide a Pre-Design Roofing Conference (if required in RFP Part 4) and Pre-Construction Roofing Conference to assure roof design and construction is properly coordinated before construction begins.

Built-in gutter systems where drainage passes through an interior space or is concealed in the exterior cavity wall shall be prohibited.

Refer to UFC 3-110-03, Roofing, UFC 3-101-01, Architecture, and UFC 1-200-02 High Performance Sustainable Buildings for additional roofing requirements such as Energy Star qualified products.

The project is a renovation of the existing building. A new roofing system is required conforming to the requirements specified herein.

MOST RELEVANT CODES AND STANDARDS

Refer to Part 3, Chapter 1.

B3010 ROOF COVERINGS

B301001 STEEP SLOPE ROOFING SYSTEMS

CLIN OPTION for Roofing – Provide a SSMR (standing seam metal roof system). The slope and configuration of the roofing is indicated in the Base Exterior Architectural Plan (BEAP), 2010, Section 4.13, Camp Johnson. Refer to Part 3, Chapter 2 for prescribed roof slope. The roof slope is to be lowered to a 2:12 slope if the 4:12 slope roof areas of Building M107 cause a roof cavity of over 12 feet.

The roof system shall be designed and attached to resist wind uplift pressures calculated in accordance with ASCE 7. Uplift resistance shall be validated by applicable Factory Mutual (FM), Underwriters Laboratories (UL) or ASTM uplift resistance test procedures. The roof material must be 3004 aluminum, ASTM B209M ASTM B209.

Organic Coatings for the metal roofing must be A PVDF coating as specified in Part 6, Roof specification section 07 61 15. 00 20 Aluminum Standing Seam Roofing. All other material and construction for metal roofing are per Part 6 specification section.

The spacing of standing seams shall between 12 inches and 18 inches on center as prescribed in the BEAP.

Sub-purlins for the Structural Metal Roof System shall be galvanized and shop painted.

PART 3 - CHAPTER 6/ESR B30 - P1512F RENOVATE M107 - Page 2

SSSMRS Warranty Certificate – Provide warranty requirements as defined in Part 6, Roof specification section 07 61 15. 00 20 Aluminum Standing Seam Roofing.

Specular Gloss of Finished roof surfaces must have a specular gloss value of 10 or less at an angle of 85 degrees or 30 plus or minus the value specified in project program at 60 degrees when measured in accordance with ASTM D 523.

B301002 LOW SLOPE ROOFING SYSTEMS (BASE BID)

A three-ply modified bitumen system consisting of modified base sheet, modified bitumen interply sheet, and modified bitumen cap sheet is the system of choice for new low sloped roofing. Refer to specification section 07 52 00 Modified Bituminous Membrane in Part 5 of this RFP for this roof systems specification.

Use a ventilating base sheet over any materials which may contain moisture which may need to transpire out of the building.

Provide polyester reinforced cap sheet on Modified Bitumen roofs expected to experience high levels of traffic, on roofs with congested equipment, where equipment is expected to receive regular service or high maintenance, and where other service conditions warrant.

Cool Roof - Meet the ASHRAE 90.1 Chapter 5 values for cool roofing. If a cool roof is not selected in zones 1-3, meet one of the exception requirements listed in ASHRAE 90.1 Chapter 5 or provide thermal insulation above the deck with an R value of 33 or greater.

B301003 ROOF INSULATION AND FILL

Provide roof insulation values no less than in accordance with UFC 1-200-02 High Performance and Sustainable Buildings and UFC 3-110-03 Roofing.

Refer to specification section 07 52 00 Modified Bituminous Membrane in Part 5 of this RFP for roof insulation requirements.

B301004 FLASHINGS AND TRIM

Flashing and sheet metal work shall include scuppers, splash pans, and sheet metal roofing.

Flashings shall be Stainless Steel - ASTM A 167, Type 302 or 304, Pre-Finished Aluminum.

Finish shall be baked-on factory applied color coating of polyvinylidene fluoride (PVF2) or other equivalent fluorocarbon coating with a minimum thickness of 0.8 to 1.3 mils.

B301005 GUTTERS AND DOWNSPOUTS

For metal standing seam roof option, provide gutters and downspouts compatible with roofing material and finish. Concealed (interior) gutters and downspouts are prohibited.

For the modified bitumen roofing option, existing downspouts are to be removed and replaced with rainleaders that are routed to below grade drainage systems at the exterior of the building.

At canopy roof areas where connections of downspouts back to main roof drains are inaccessible, remove existing metal roofing to allow the removal of downspouts.

B301006 ROOF OPENINGS AND SUPPORTS

Roof openings are not allowed. This includes openings required for solar tubes and skylights that are prohibited for this project.

PART 3 - CHAPTER 6/ESR B30 - P1512F RENOVATE M107 - Page 3

B301090 OTHER ROOFING

Provide lightning protection without penetrating the roof membrane, copings, or flashing components.

Provide new roof drains and accessories for the modified bitumen roofing option.

--End of Section--