Project manual Gunpowder Lee Property Roof Water Well & Windows (1).pdf

PROJECT MANUAL

Lee Property: Replace Roof/Windows and Water System

Gunpowder Falls State Park.

4401 Stansbury Mill Road Monkton MD 21111, Baltimore County

Project # EC25-09032-122

June 4, 2025

For the State of Maryland Department of Natural Resources

Engineering and Construction Division Josh Kurtz, Department Secretary

State of Maryland Board of Public Works Wes Moore, Governor

Brooke E. Lierman, Comptroller Dereck E. Davis, Treasurer

TABLE OF CONTENTS

I. Detailed Specifications A. Scope B. Contractor Qualifications C. Site Inspection D. Schedule of Work E. Standards and Codes F. Materials and Supplies G. Method of Work H. Warranty and Guarantee I. General Requirements

II. Alternates, Unit Prices, and Allowances A. Alternates B. Unit Prices C. Allowances

III. Drawings & Attachments

IV. DETAILED SPECIFICATIONS

A. SCOPE:

1. This project shall consist of the Contractor providing all labor, materials, equipment, tools, insurance, etc., necessary to replace the roof, four windows and upgrade the plumbing system at the Lee Property associated with Gunpowder Falls State Park at 4401 Stansbury Mill Road, Monkton MD 21111 in Baltimore County.

2. The proposed project shall include but is not limited to the following:

Roof Replacement:

a. Remove and properly dispose of old roofing materials to include a layer of asphalt and cedar shingles to expose the underlying wood purlins, approximately 1800 SF. Remove existing purlins to accept new plywood sheathing to the existing rafters.

Remove and properly dispose of old roofing materials to expose the underlying wood sheathing, approximately 1500 SF.

Total roof area = 3,300 SF (to include garage).

b. The Contractor shall properly prepare the existing roof sheathing in accordance with the shingle manufacturer’s instructions to receive new roofing system. The contractor shall notify the Project Engineer to inspect the existing sheathing after it is exposed and replace any damaged sheathing as per Unit Price # 1 @ 500 SF. Install new wood sheathing over the removed purlin area to be calculated under Unit Price # 1 @

1800 SF.

c. The Contractor shall install new aluminum drip edge on the entire perimeter of all the roof systems.

d. The Contractor shall install new ice guard membrane in accordance with the manufacturer’s instructions with a minimum of two (2) rows at the eaves and one (1) row at gable ends. Install 30-lb roof felt underlayment over the entire roof system.

e. The Contractor shall install new flashing and counter flashing, etc. around all transitions from the new roof shingling to vertical siding or masonry surfaces according to the manufacturer’s instructions, approximately 75 SF.

f. Cut approximately 50 LF of slot for the installation of new ridge vent according to the manufacturer’s instructions to replace previously removed ridge vents.

g. Install approximately 3,300 SF of new asphalt architectural shingles according to the manufacturer’s instructions.

h. Install 50 LF of new ridge vent in prepared areas according to the manufacturer’s instructions.

Windows:

i. Replace four @ approximately 21”x 24 1/8” windows to match removed dimensions to include associated frames, hardware, locks, closers, etc for a complete installation, according to the manufacturers written instructions.

Water System:

j. Design, build and install a new well water distribution system to replace the existing system. The new system will relocate/extend the existing system from below the deck to the basement mechanical room, approximately 30 LF away. New system shall include any new piping, pressure tanks, electrical connections, shut off valves, pressure switches, chlorine treatment system, water meters, and a new sediment filtration system. The system shall include all necessary components for a complete proper installation according to the manufacturers written instructions. Tie new system into the current piping of the house. Test system for proper operation.

General:

k. Properly dispose of construction debris from the job site and leave it in a pre-construction condition after completion.

l. The Contractor shall clean up the job site to the satisfaction of the Project and Facility Manager. This work shall include sweeping walkways, raking surrounding areas, and removal of all excess materials and debris.

NOTE: All quantities and sizes listed above are approximate. The Contractor shall be responsible to obtain his/her measurements for the project and bidding purposes.

NOTE: Roofing staples will not be permitted in place of roofing nails.

NOTE: The Contractor shall at the end of each work day, inspect and

“sweep” the area with a magnet, and pick up any nails and/ or debris.

B. QUALIFICATIONS OF THE CONTRACTOR:

1. The Contractor shall be licensed in the State of Maryland as a General Contractor and in accordance with COMAR regulations to perform the roofing work associated with this contract.

2. The Contractor shall have a minimum of 5 years of current and continuous experience installing asphalt shingle roofing and in performing similar work in the type of roofing system that is being installed; and, must be able to obtain and provide all warranties for this project.

3. Upon request, the Contractor shall supply to the DNR Procurement Officer a list of similar projects, which have been successfully completed by the Contractor.

C. SITE INSPECTION:

1. All prospective bidders are encouraged to attend the Pre-Bid conference meeting and familiarize himself/herself with the requirements for the project. Failure to attend the Pre-Bid conference meeting, or visit the site, will not relieve the successful bidder from complying with the requirements of these specifications at no additional cost to the State.

2. Any additional site visits can be arranged with the Park Manager (410) 592-2897 and the DNR Project Engineer – Yaakov Birnbaum (410-533-7918).

D. SCHEDULE OF WORK

1. Work shall be scheduled through and approved by the Project Engineer and Facility Manager. The Contractor shall perform all work Monday through Friday during the normal working hours of 7:00 am to 5:00 PM., unless approved by the Project Engineer in writing.

2. The Contractor shall notify the Project Engineer seven (7) days prior to his start of work. He shall coordinate with the Project Engineer and the Facility Manager the dates of the Work Initiation Conference, the work, and any closures required.

3. Use of the premises by the Contractor is to be limited to specified work areas and approved storage areas.

4. The contract duration is ninety (90) calendar days.

E. STANDARDS AND CODES:

1. All work shall be performed in a first class workmanship manner in accordance to standards of the trade.

2. The Contractor shall comply with OSHA (Occupational Safety and Health Administration) and MOSHA (Maryland Occupational Safety and Health Administration) regulations regarding construction safety and health standards throughout the duration of this project.

3. All work shall be performed in accordance with applicable code requirements and standards as defined by the Maryland Code Administration “Maryland Building Performance Standards” (MBPS) and the latest editions of the:

International Building Code (IBC) International Residential Code (IRC) International Plumbing Code (IPC)

International Mechanical Code (IMC) National Electric Code (NEC) International Energy Conservation Code (IECC) Maryland Accessibility Code (MAC) National Fire Protection Association 101Life Safety Code (NFPA) and any local amendments or modifications to the standards made by the authority having jurisdiction which may be applicable to the work.

4. All electrical work must be performed be a contractor licensed in Baltimore County to conduct electrical work.

F. MATERIALS AND SUPPLIES:

1. General:

a. All materials shall be as specified or approved equal by the Project Engineer.

b. The Contractor shall be responsible for the coordination, off-loading and proper storage of all materials and supplies and assume full responsibility for protection and safekeeping up until the time of the final inspection.

c. Where applicable, materials shall be new, delivered in their original unopened containers with labels intact and legible.

d. All materials and supplies shall be stored up off of the ground surface and protected from weather with a waterproof covering.

e. Materials shall be stored in a safe area, out of the way of traffic. Storage site location shall be approved by the Facility Manager prior to the storage of any materials on site.

f. Any materials not specifically mentioned but are necessary for the safe, professional and satisfactory completion of the project shall be provided by the Contractor as if specified herein.

g. All color selections shall be done by the facility manager at the pre-construction phase.

2. Specifics:

a. Roofing Shingles: Shall be 50 year asphalt architectural shingles, "LANDMARK" Pro (Algae Resistant) by CertainTeed or approved equal. Install as per manufacturer’s recommended specifications. (Color selections shall be provided to the Facility Manager for approval).

b. Ridge Vent: Shall be 12” filtered roof vent for roof ridge as manufactured by Certainteed, or approved equal.

c. Ice Membrane: Shall be “Winterguard” by CertainTeed or approved equal.

d. Felt Underlayment: Shall be 30-lb asphalt-saturated organic felt as installed according to the manufacturer’s recommended specifications or approved equal.

e. Shingle Fasteners: Shall be standard corrosion resistant roofing nails, 3/8” diameter head, 1 1/4” long. Staples not permitted. Use six (6) nails per shingle.

f. Ridge vent/ cap shingle fasteners: Shall be standard roofing nails 3/8” diameter head, 3” long.

g. Roof Cement: Asphalt roofing cement shall be in compliance with the requirements of ASTM D4586 Type II.

h. Plywood sheathing: Shall be 1/2" OSB plywood, or should match the existing wood sheathing.

i. Flashing: Shall be standard aluminum flashing with a minimum thickness of .019”.

j. Windows: Shall be Anderson 400 Series full frame casement windows, approximately 21”x 24 1/8”. The Contractor shall confirm all measurements with the DNR Project Engineer before ordering any materials.

k. Waterline extension from well: Shall be 2” diameter PE Tubing

(Polyethylene Tubing – black poly) with brass barb fittings and stainless steel hose clamps, rated at 160 PSI minimum, meeting the requirements of AWWA C901, ASTM D-1248, ASTM D-2239, ASTM D-2737.

Fittings shall be as per manufacture’s recommendations.

l. Waterline: Shall be schedule 40 PVC to include all necessary elbows, t’s, adapters, etc. necessary for a complete installation. Water main in treatment building shall be 2” diameter and branch lines to tanks shall be 1” diameter. Water main to existing distribution system shall be 2” reduced to current pipe diameter at the connection.

m. Pressure Tank: Shall be a “Well X Trol”, Professional, Pre-Pressurized

Water System Well Tank as manufactured by Amtrol or approved equal.

i. Tank in Water Treatment Building: shall be a Flex2Pro Series Model #WWT120 as manufactured by Flexcon Industries or approved equal, with a tank volume of 119 gallons. Each tank shall include a ¾”boiler drain and a 1”, ¼ turn, ball union shutoff valve to allow removal of individual tanks without disruption to other tanks.

n. Shutoff Valves: Shall be a ¼-turn ball union valves compatible and properly sized to the PVC pipe. Valve shall be rated at 160 PSI (minimum) working pressure.

o. Water Meter: Shall be a Fluxus F501 ultra sonic meter manufactured by

Flexim. No other water meter type or manufacturer shall be accepted.

p. Chemical Feed Pump: Shall be a Stenner Peristaitic Pump as manufactured by Stenner Pumps or approved equal. Unit shall be adjustable with maximum rating of 3 GPD and system maximum pressure 100 psi. Unit shall include: mounting bracket, spare tube assembly, injection check valve, 20’ tubing, ceramic weight, connecting nut ferrules and operating manual. In addition a minimum 20 gallon, plastic, liquid chlorine, storage container, with lid shall be provided by the contractor.

q. Sediment Filter: Shall be Big Blue Whole House Water Filters, add sediment cartridge instead of Fluoride (6-8 GPM | 2-3 people) as manufactured by Crystal Quest or approved equal.

G. METHOD OF WORK:

1. General:

a. All work shall be performed as called for in these written specifications.

b. The Contractor shall coordinate all work with the various trades and suppliers in order to complete the project expeditiously within the time limits of the contract. The sequence of events shall be left up to the Contractor.

c. All work shall be performed in the best and most professional manner by mechanics skilled in their respective trades.

d. The Contractor shall maintain the job site in a safe, neat and orderly manner throughout the entire project and take steps to prevent accumulation of debris at the job site.

e. The Contractor shall take steps to insure a watertight roof throughout the project. The contractor is responsible for any moisture or water inside building as a result of stormwater during construction. Upon completion of the project, the Contractor shall legally dispose of all excess materials and debris and leave the entire area clean and in an acceptable condition.

f. Any work, which has not been specifically mentioned, but is necessary for the safe, professional and satisfactory completion of the project, shall be performed by the Contractor as if specified herein.

2. Specifics:

a. Remove and properly dispose of old roofing materials to include a layer of asphalt and cedar shingles to expose the underlying wood purlins, approximately 1800 SF. Remove existing purlins to accept new plywood sheathing to the existing rafters.

Remove and properly dispose of old roofing materials to expose the underlying wood sheathing, approximately 1500 SF.

Total roof area = 3,300 SF (to include garage).

b. The Contractor shall sweep the roof free of debris and properly prepare the roof sheathing in accordance with the shingle manufacturer’s instructions to receive new roofing system. The contractor shall notify the Project Engineer to inspect the existing sheathing after it is exposed and replace any damaged sheathing as per Unit Price # 1 @ 500 SF. Install new wood sheathing over the removed purlin area to be calculated under Unit Price # 1 @ 1800 SF. New sheathing shall be fastened to the rafters according to manufacturer’s instructions. New sheathing shall be nailed with 1 ½” fasteners on rafter beams.

c. The Contractor shall install new aluminum drip edge on the entire perimeter of all the roof systems to include eaves and gable ends, under the underlayment on eaves and over the underlayment on rake edges. Secure to sheathing with 1 1/4” roofing nails placed 12” o.c. Properly overlap all joints 3”- 4” according to the manufacturers instructions.

d. Once the roof sheathing has been properly prepared, the Contractor shall install new ice guard membrane in accordance with the manufacturer’s instructions with a minimum of two (2) rows at the eaves and one (1) row at gable ends.

e. Install 30-lb roof felt underlayment over the entire roof systems to include aluminum drip edge installed on the entire perimeter of roof to include eaves and gable ends, according to the manufacturer’s instructions.

f. The Contractor shall install new flashing and counter flashing, etc. around all transitions from the new roof shingling to vertical siding or masonry surfaces according to the manufacturer’s instructions, approximately 75 SF.

g. Cut approximately 50 LF of slot for the installation of new ridge vent according to the manufacturer’s instructions to replace previously removed ridge vents. The slot shall be cut to within 12” of each vertical wall section, and the width shall be 3/4” to 1” on each side of the ridge board to allow for sufficient air ventilation.

h. Install approximately 3,300 SF of new asphalt architectural shingles including starter shingles in accordance with the manufacturer’s instructions. All shingles shall be secured to the roof deck with 1 1/4” galvanized roofing nails (6 nails per shingles) and 3” for the ridge caps.

All shingles along eaves and rake edges shall project approximately 3/8” beyond the edge of the drip strip, and four spots of roofing cement per shingle according to manufacturer’s instructions. Roofing staples will not be permitted in place of roofing nails. All shingles are to be secured with corrosion-resistant roofing nails.

i. Install 50 LF of new ridge vent in prepared areas.

Windows:

j. Replace four @ approximately 21”x 24 1/8” windows to match removed dimensions and associated frames down to the rough openings according to the manufacturers written instructions. Properly prepare openings to accept new windows. Ensure that existing openings are in sound condition to accept new windows. Confirm size of rough openings before ordering new windows. Frames shall be installed straight, level, plumb and free of rack.

Complete installation to include all associated hardware, locks, closers, etc for a complete installation.

Water System:

k. Design, build and install a new well water distribution system to replace the existing system. Remove the existing system under the deck. The new system will relocate/extend the existing system from below the deck to the basement mechanical room, approximately 30 LF away. New system shall be tied into the existing piping from the existing well and shall include any new piping, pressure tanks, electrical connections (including any wiring and conduit), shut off valves, pressure switches, chlorine treatment system, water meters, pressure reducing valve (if required) and a new sediment filtration system. The system shall include all necessary components for a complete proper installation according to the manufacturers written instructions. Tie new system into the current piping of the house.

i. The new system shall be approved by the DNR Project Engineer prior to ordering and installing any materials.

ii. Contractor shall flush and sanitize all piping in accordance with applicable code requirements. Water shall be tested by an approved lab to insure potability. Test results shall be provided to the Project Engineer.

General:

l. Properly dispose of construction debris from the job site/state property and leave it in a pre-construction condition after completion.

m. The Contractor shall clean up the job site to the satisfaction of the Project and Facility Manager. This work shall include sweeping walkways, raking surrounding areas, and removal of all excess materials and debris. Pick up all nails on a daily basis.

m. Any tire ruts, holes, etc., left by the Contractor shall be filled with top soil and seeded to a pre-construction condition.

NOTE: All quantities and sizes listed above are approximate. The Contractor shall be responsible to obtain his/her measurements for the project and bidding purposes.

NOTE: Roofing staples will not be permitted in place of roofing nails.

NOTE: The Contractor shall at the end of each work day, inspect and

“sweep” the area with a magnet, and pick up any nails and/ or debris

H. WARRANTY AND GUARANTEE:

1. The Contractor shall fully guarantee the work covered under this contract for a period of two (2) years from the date of acceptance against defects in materials and workmanship.

2. Any defects found within the two (2) year warranty period shall be promptly repaired or replaced by the Contractor at no additional cost to the State.

3. The Contractor shall provide the Project Engineer all manufacturers’ warranties for materials and systems used on this project.

4. Acceptance by the Project Engineer of any procedures, materials, workmanship, or final product shall not relieve the Contractor of his contractual requirements.

5. All work is subject to the inspection and approval of the Project Engineer.

6. The Contractor shall submit all warranty information regarding the Lifetime Limited Warranty for the architectural roof shingles to the Project Engineer as specified.

7. All warranties should be in compliance with the General Conditions for

Construction Contracts 7.14 Warranty.

I. GENERAL REQUIREMENTS:

1. The Contractor shall make his own arrangements at his own expense, coordinating with the Facility Manager and the Project Engineer, for storage of materials and any construction yard he may require to execute this project.

2. Deviation from the manufacturer's instructions or this specification will not be acceptable.

3. The Contractor shall take all necessary precautions and measures to protect all properties from damage. He shall repair all damage caused by his operation to all public and private property including roads, walks, curbs, utilities, trees, shrubs, plantings, etc., and leave the property in good condition and/or at least equivalent to the condition found.

4. The Contractor shall make his own arrangements to acquire any temporary utility service which he requires to perform this contract. Any expenses incurred must be paid by the Contractor.

5. The completed project is subject to the inspection and approval of the Project

Engineer.

II. ALTERNATE AND UNIT PRICES

A. ALTERNATES:

None.

B. UNIT PRICES:

1. On the Bid Form opposite Unit Price # 1, the Contractor shall insert a cost per square foot x estimated 2,300 SF = Total Unit Price # 1 to replace any wood sheathing – ½” OSB plywood to match removed sections as directed by the Project Engineer.

NOTE: The Contractor shall incorporate all costs associated with transportation, fuel, maintenance on equipment, employee salary, benefits, overhead, profit, etc., in the Unit Price. Units Prices will be used to increase/decrease the contract price based on actual quantities installed, in accordance with the Instructions to Bidders for Construction Projects (3.B.3)

III. DRAWINGS & ATTACHMENTS

1. The following drawings are included and shall be considered a part of these specifications:

Drawing #1 Location Map Drawing # 2 House Photo

ii. Contractor shall flush and sanitize all piping in accordance with applicable code requirements. Water shall be tested by an approved lab to insure potability. Test results shall be provided to the Project Engineer.