07 91 13.pdf

DD#2 Complex Amendment 2021-04-09 Portsmouth Naval Shipyard, Kittery, ME

SECTION 07 91 13

COMPRESSION SEALS

02/16

PART 1 GENERAL

1.1 DESCRIPTION OF WORK

A. This section provides specifications for the procurement and installation of preformed compression joint seals and the associated adhesive as applicable.

B. Furnish all labor, quality control associated with compression seal installation, compression seals and applicable accessories, and install compression seals in accordance with the specifications herein.

1.2 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

DOCKSIDE COMPRESSION SEALS; G, AE

Enclosure 5 and Enclosure 7 COMPRESSION SEALS; G, AE Passageway COMPRESSION SEALS; G, AE

Submit for approval for each application/condition including profile dimensions, dimensions of features added for mounting, miter and gluing methods and overlap conditions to achieve a continuous seal as required.

SD-03 Product Data

COMPRESSION SEALS; G, AE

Synthetic Horsehair Brush; G, AE

Submit for approval manufacturer’s current technical literature for each type of seal product and lubricant.

Manufacturer, Model #, contact information, and other information required for placing a future order shall be indicated in the product data submittal for each type of seal utilized in the project.

SD-04 Samples

COMPRESSION SEALS; G, AE

Synthetic Horsehair Brush Seal; G, AE

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Provide 6 Sections of minimum 12 inch length of each type of product that are mocked up to final condition with accessory items.

SD-07 Certificates

MANUFACTURER QUALIFICATIONS; G, AE

1.3 QUALITY CONTROL

Contractor is responsible for quality control, including workmanship and seal materials furnished by suppliers.

1.3.1 Manufacturer Qualifications

Manufacturers shall have a minimum of five (5) years experience in the production of extruded and/or molded rubber seals.

1.4.2 These products are to be part of the Mock Up as required in paragraph 1.13 in Section 01 11 00 Scope of Work.

1.4 DELIVERY, STORAGE, AND HANDLING

A. Deliver compression seals in manufacturer’s original, unopened, undamaged packaging with identification labels intact.

B. Store compression seals in a clean, dry location, protected from UV light.

PART 2 PRODUCTS

General: All seals shall be installed to allow the building elements to resist 0.2 inch W.C. The Contractor shall be responsible for seal continuity and for the final installation of the building components and it's seal being capable of resisting the required vacuum loads.

2.1 COMPRESSION SEALS

All compression seals for a specific group listed below shall be the same color to the max extent possible. Preferable colors for all seals are black or gray. Where seals are to be exposed, seals to be of uniform color.

Shop drawings shall be provided for each of the respective enclosures as indicated below prior to work beginning. The shop drawings shall include all conditions/appplications where compression seals are utilized.

All fasteners associated with the compression seals that are located in areas within the captivation boundaries and exposed shall meet the captivation requirements outlined in 01 11 00 Summary of Work. The specific captivation measures and fasteners proposed shall be clearly indicated in the shop drawings and product data for the specific enclosure and area.

DOCKSIDE COMPRESSION SEALS

Enclosure 5 and Enclosure 7 COMPRESSION SEALS Passageway COMPRESSION SEALS

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2.2 DECK INSERT FLOOR SEALS

Seals to be installed such as not to raise up the floor. The intent is that the insert floor and the structure floor need to be at the same height.

2.2.1 Plate Seal

Plate seal shall be a continuous saturated polyurethane foam tape with a rectangular cross section adhered to the recieving face of the deck-to-fixed floor or deck-to-deck connection on Level 1 of the tower only, as shown on the drawings. Foam tape shall be sized to fill the gap between the moveable pit floor deck plate and the seal plate (nominally 1/4 inch x 3/4 inch). This seal shall be pressed into place, onto the recieving metal plate surface, per manufacturer's requirements.

2.3 MOVABLE ROOF SEALS

A. Roof-to-Roof Mating Seal: Mounted on one roof half face to contact mating roof half face.

1. Material: Closed cell Neoprene rubber with shore A hardness of 6040.

2. Shape: Provide hollow bulb-type seal with a 2 inch diameter bulb, 3/16 inch minimum wall thickness and a minimum 1 inch flange for mounting as indicated in the Drawings. Length as required to complete the seal (when in closed condition) as indicated in Drawings.

B. Flat Stock: Mounted on roof to contact roof runway beam flashing.

1. Material: closed cell cloth-inserted EPDM shore A hardness of 5040.

2. Shape: Provide 3/8 inch thick material with a minimum width of 18" inches in the lengths required to complete the seal along the length of the roof as indicated.

C. Skirt: Mounted on roof to contact roof runway beam flashing.

1. Material: closed cell cloth-inserted EPDM shore A hardness of 60.

2. Shape: Provide 1/4 inch thick material with a minimum width of 18" inches in the lengths required to complete the seal along the length of the roof as indicated.

D. Track Wiper Seals (Synthetic Horsehair Brush Seal): Mounted on roof to contact roof runway assembly.

1. Material: Synthetic Horsehair Brush.

2. Shape: Material cut to fit the mounting hole locations as indicated in the Drawings. Cuts to fit the roof runway assembly profile shall be performed after installation of the roof half as indicated in the Drawings.Size and gauage to be selected after contractors submits samples and product data of all available sizes (gague and length).

3. Contractor to submit mock up of installation prior to full-scale installation on roof assemblies for approval.

PASSAGEWAY TO STRUCTURE SEAL

Pre-Compressed Foam Sealant: Provide watertight, energy-efficient, 2 hour fire rated, exterior and interior joints in vertical-plane walls (above-grade). System shall perform waterproofing, fire-rating, movement-accommodation functions as well as contribute to thermal insulation and sound attenuation as the result of a single installation and without the addition of ancillary fire-blankets, mineralwool,coverplates,etc.

1. Location: As indicated on drawings.

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2. Sealant shall be silicone pre-coated, preformed, pre-compressed, self-expanding, 2 hour-rated, sealant system. Sealant system shall be comprised of the following components:

a. fire-retardant-impregnated foam pre-coated at the outer layers with waterproof silicone.

b. field-applied epoxy adhesive primer,

c. field-injected silicone sealant bands.

3. Material shall be capable of movements of up to +50%, -50% (100% total) of nominal material size. Standard sizes from 1/2" to 6". Size and depth to be as show on the drawings.

4. Silicone external color facings to be low-modulus, waterproof silicone factory-applied to the foam while it is partially pre-compressed to a width greater than maximum joint extension and cured before final compression.

When compressed to final supplied dimension, a bellow(s) to handle movement must be created in the silicone coating.

5. Select the sealant system model appropriate to the movement and design requirements at each joint location that meet the project specification or as defined by the structural engineer of record.

2.4 ACCESSORIES

2.4.1 Roof to Roof Seal and Skirt Seal

Seal Backing Bar: Per drawings per ASTM A240 (300 series).

2.4.2 Fasteners

1. Bolts: Provide 1/4-20 hexagon head bolts per ASTM A307, Grade A, zinc coated, in the length required to pass through the assembled materials and fully engage the rivet nut.

2. Rivet Nuts: 1/4-20 stainless steel rivet nuts with knurled round bodies for installation into the structural member as indicated. Size the rivet nut grip to suit the structural member thickness.

3. Provide bolts with a nylon locking element or use a suitable thread locking compound to captivate the installed bolts.

4. Washers: Provide stainless steel washers with all fasteners.

2.5 SEAL LUBRICANT

Provide a non-toxic, silicone based lubricant, see approved lubricant list, suitable for wet locations, for lubricating the sliding elastomeric seals.

PART 3 EXECUTION

3.1 EXAMINATION

Examine installation location for each seal type to ensure it is free of dirt, debris, burrs or any other defect that will prohibit a proper installation. Correct any issues prior to installation of the seal.

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3.2 INSTALLATION

3.2.1 Deck Insert Floor Seals

1. Trim Seal

a. Install trim seal in locations as indicated in the Drawings. Continue bottom run of trim seal, installed on movable pit floor, beyond bracket and butt into vertical trim seals on either side of the pit floor wall opening. Seal joint with color-matched silicone sealant. Horizontal and vertical trim seal installed on wall opening shall have mitered and glued corners per manufacturer’s instructions.

b. Upon completion of trim seal installation, rotate and latch rotating wall panel assemblies as indicated and verify continuous contact between the trim seal bulb and the back side of the wall panel assemblies along the entire perimeter of the wall opening. Adjust the latches as necessary to achieve continuous contact.

2. Seal Plate Seal

a. Install seal plate seal on seal plate as indicated on the Drawings.

Align one edge of seal with inside face of 1/4" inch lip on seal plate, remove adhesive backing from bottom of the seal and stick the seal to the seal plate. The seal shall be one continuous piece for the entire length of the seal plate.

b. Locate the alignment pin hole in the seal plate and cut a matching hole thru the seal. This cut shall leave approximately 1/4 inch of seal cross-section outboard of the hole through the seal plate. This remnant shall remain adhered to the seal plate.

3. Gap Seal

a. Install the gap seal into the gap created by the seal plate and moveable pit floor deck plate as indicated in the Drawing. The gap seal shall be one continuous piece for the entire length of seal plate/deck plate, whichever is shorter. Upon installation, the top of the gap seal shall be flush with the top of the adjacent finished floor as indicated in the Drawings.

3.2.2 Movable Roof Seals

1. Install seals and backing bar as indicated in the Drawings. Provide holes in the seal flange for installation over the studs as necessary.

2. Install track wiper seals after installation of the roof halves as indicated in the drawing. Trim the seal pieces as necessary to seal to the roof runway assembly and adjacent surfaces. Apply a thin film of seal lubricant to the portions of the seal that will slide on the adjacent surfaces.

3.2.3 Rear Seal

1. Drill Structural member and install rivet nuts as indicated in the Drawings.

2. Install the seal, backing bar and bolts to secure the seal to the member; use nylon locking element or thread locking compound. Provide 3/4 X 1/4 inch slotted holes in the seal flange for through bolt installation and subsequent adjustment of seal as necessary. Apply a thin coat of seal lubricant to the portion of the seal that will contact the adjacent sealing surface.

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3.3 SPARE SEALS

All remaining seal remnants in usable lengths/sizes shall be re-sealed in manufacturer’s original packaging with identification labels attached and provided to the Government. Provide a minimum of 15 feet spare seal material to the Government, for each type of seal.

In addition to the spare material above, the Contractor shall furnish two

(2) complete passageway gasket frames as spares for future use. The spare frames shall be delivered to the Government in a sealed package with identification labels.

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