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Replace Roofs on Hatteras Island Bookstore, Pavilion, and Comfort Station

CAPE HATTERAS NATIONAL SEASHORE

Outer Banks Group

Scope of Work

Replace Roofs on Hatteras Island Visitor Center, Pavilion, and Comfort Station

1.0 INTRODUCTION

The National Park Service (NPS) Cape Hatteras National Seashore (CAHA) has a requirement to replace roofs on the Hatteras Island Visitor Center, Pavilion, and the Comfort Station with new structural standing seam metal roofing systems.

2.0 CONSTRUCTION SITE LOCATION

The Hatteras Island Visitor Center, Pavilion, and the Comfort Station are located at 46375 Lighthouse Rd, Buxton, NC 27920

3.0 BACKGROUND AND EXISTING CONDITIONS

The contractor is required to verify existing conditions.

The Hatteras Island Bookstore and the comfort Station were built in 2000, and the Pavilion was added in 2001. These roofs are original to these structures and have been repaired numerous times after damage from hurricanes and several unnamed storms. Total roofing area is approximately 9500 sq.ft. consisting of 3 separate hip roofs that are currently covered with cedar shakes. The roofs are hipped trussed type framed on 2’ centers roof decking is 5/8” plywood with tar paper and cedar shake shingles with 2x10 exposed wooden facia. The roofs are a combination of 5-12 and 6-12 pitch. Various lengths of rain gutter and downspouts are associated with each of the structures.

4.0 MAJOR WORK COMPONENTS

The contractor will provide all technical support, materials, tools, equipment, and manpower required complete the project.

The major work components are not meant to be an all-inclusive to do list for the project, but a list of the main items involved in the project. The contractor is responsible for verifying existing conditions. The contractor can use this list to assist with the bid process for this project. The major project components are listed below but are not limited to the following:

BASE BID:

A. The Contractor must submit for the government approval all products to be used on this project. Provide at least 21 days for government feedback / approval.

1. Specifically submit the new standing seam roofing system, including manufacturer’s recommendations for high wind application, testing, and installation instructions.

2. Erect temporary construction barriers to protect visitors, employees and restrict pedestrian access.

B. Demo existing roofing. Included are all items down to the roof deck: shingles, drip edge, gutters, felt, vent boots, and flashing. Completely remove roofing nails. inspect roof deck materials for rot and recommend repair options to C.O. for approval.

Remove existing facia boards around all buildings, approximately 2525 LF.

C. Protect exposed roofs during demolition until new roof materials are applied. Apply

Ice and Water self-adhesive roofing paper to entire roof surface.

D. Provide and install new 0.40 Aluminum mechanically seamed double lock style structural standing seam metal roofing. New roof shall have the following features:

1. Concealed stainless steel fasteners.

2. Completely cover the roof deck.

3. Provide and install new roof vent boots from the same manufacturer as the new roof.

4. Provide and install attic vent covers color to match roofing.

5. Carpentry/Roofing/Framing work necessary to provide a new standing seam metal roof in place of the existing roof is included in this project.

6. New roof system must meet International Building Code/North Carolina Building Code for the wind rating of 150 mph at the project site. New Roofing must meet ASTM E1514 for Standing Seam Metal Roof Systems or approved equal (Standard Specification for Structural Standing Seam Steel Roof Panel Systems (astm.org)).

7. New roof must be installed by a qualified roofing installer who has specific knowledge and experience installing the roof system for this project. Installer must have a certification from a metal roofing association, or an equivalent manufacturer’s training and experience program.

8. New roof installation methods shall meet the requirements of the manufacturer to obtain a 30-year material warranty, 20-year weather tightness warranty, 150 mph wind warranty (with no exclusions for named storms or gusts), 20-year fade and chalk resistance warranty.

9. Color shall be a hunter green shade as selected by the COR.

10. Temporary roofing shall maintain the project roof as watertight and able to prevent leaks and damage to the building and structure until reroofing work is completed. Contractor shall ensure the projects roof is 100% watertight at the completion of work each day.

E. Provide new 2x10 pressure treated wood fascia boards. Utilize a minimum of four fasteners at each rafter. Pitch cut the top of the facia board to match the slope of the rafters and roof deck.

F. Install new metal commercial type gutter system with downspouts to all buildings in same locations as existing.

OPTION ITEM:

A. Wrap fascia and soffit with metal to match roofing. Install new soffit vents.

NOTES:

1. All carpentry work required to install the new roof system is included in this project.

2. Stainless Steel hardware must be type 316 stainless steel unless otherwise approved by the NPS.

3. The NPS follows the International Building Code (IBC). This project must meet the

IBC, and all federal, state, and local codes.

(Figure 07 North Carolina Wind Zone diagram from Building Code showing Oregon Inlet Campground within the 120 mph wind zone)

5.0 SUBMITTALS

A. Product Data. The Contractor shall submit written documentation or color/product samples for materials identified in the Scope of Work.

1. Structural Standing Seam Roof System including fasteners.

2. Color Selection Sheet for Structural Standing Seam Roof

3. Hurricane Ties

4. Wood products

5. Rubber Boot material

B. Manufacturer requirements for Installer Qualifications C. All manufacturer operation and maintenance manuals, warranties, and cleaning instructions shall be submitted before final payment is made.