072113 Thermal Insulation.docx

Renovate Pharmacy for USP 800 10-01-17 VAMC New Orleans, LA

SECTION 07 21 13

THERMAL INSULATION

GENERAL

SUMMARY

Section Includes:

Acoustical insulation.

Batt and blanket insulation at interior framed partitions and ceilings.

RELATED REQUIREMENTS

Safing Insulation: Section 07 84 00, FIRESTOPPING.

APPLICABLE PUBLICATIONS

Comply with references to extent specified in this section.

ASTM International (ASTM):

C55215 - Cellular Glass Thermal Insulation.

C55313 - Mineral Fiber Blanket Thermal Insulation for Commercial and Industrial Applications.

C66512 - MineralFiber Blanket Thermal Insulation for Light Frame Construction and Manufactured Housing.

C95415 - Steel Drill Screws for the Application of Gypsum Panel Products or Metal Plaster Base to Steel Studs From 0.033 (0.84 mm) inch to 0.112 inch (2.84 mm) in thickness.

C100214 - Steel SelfPiercing Tapping Screws for Application of Gypsum Panel Products or Metal Plaster Bases to Wood Studs or Steel Studs.

E8415a - Surface Burning Characteristics of Building Materials.

F166715 - Driven Fasteners: Nails, Spikes, and Staples.

SUBMITTALS

Submittal Procedures: Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES.

Manufacturer's Literature and Data:

Description of each product.

Adhesive indicating manufacturer recommendation for each application.

DELIVERY

Deliver products in manufacturer's original sealed packaging.

Mark packaging, legibly. Indicate manufacturer's name or brand, type, production run number, and manufacture date.

Before installation, return or dispose of products within distorted, damaged, or opened packaging.

STORAGE AND HANDLING

Store products indoors in dry, weathertight facility.

Protect products from damage during handling and construction operations.

WARRANTY

Construction Warranty: FAR clause 52.246-21, "Warranty of Construction."

PRODUCTS

INSULATION - GENERAL

Insulation Thickness:

Provide thickness required by Rvalue shown on drawings.

Provide thickness indicated when Rvalue is not shown on drawings.

Insulation Types:

Provide one insulation type for each application.

Sustainable Construction Requirements:

Insulation Recycled Content:

Rock wool material: 75 percent recovered material.

ACOUSTICAL INSULATION

Semi Rigid, Batts and Blankets:

Widths and lengths to fit tight against framing.

Mineral Fiber boards: ASTM C553, Type II, flexible, or Type III, semi rigid unfaced.

Density: nominal 4.5 pound.

Mineral Fiber Batt or Blankets: ASTM C665 unfaced.

Maximum Surface Burning Characteristics: ASTM E84.

Flame Spread Rating: 25.

Smoke Developed Rating: 450.

ACCESSORIES

Fasteners:

Staples or Nails: ASTM F1667, zinccoated, size and type to suit application.

Screws: ASTM C954 or ASTM C1002, size and length to suit application with washer minimum 50 mm (2 inches) diameter.

Impaling Pins: Steel pins with head minimum 50 mm (2 inches) diameter.

Length: As required to extend beyond insulation and retain cap washer when washer is placed on pin.

Adhesive: Type recommended by manufacturer to suit application.

Tape:

Pressure sensitive adhesive on one face.

EXECUTION

PREPARATION

Examine and verify substrate suitability for product installation.

Protect existing construction and completed work from damage.

Clean substrates. Remove contaminants capable of affecting subsequently installed product's performance.

INSTALLATION - GENERAL

Install products according to manufacturer's instructions and approved submittal drawings.

When manufacturer's instructions deviate from specifications, submit proposed resolution for Contracting Officer's Representative consideration.

Install insulation with vapor barrier facing the heated side, unless indicated otherwise.

Install batt and blanket insulation with joints tight. Fill framing voids completely. Seal penetrations, terminations, facing joints, facing cuts, tears, and unlapped joints with tape.

Fit insulation tight against adjoining construction and penetrations, unless indicated otherwise.

ACOUSTICAL INSULATION

General:

Install insulation without voids.

Pack insulation around door frames and windows, in building expansion joints, door soffits, and other voids.

Pack behind outlets, around pipes, ducts, and services encased in walls.

Hold insulation in place with pressure sensitive tape.

Lap facer flanges together over framing for continuous surface. Seal all penetrations through the insulation and facers.

Do not compress insulation below required thickness except where embedded items prevent required thickness.

Semi Rigid, Batts and Blankets:

When insulation is not full thickness of cavity, adhere insulation to one side of cavity, maintaining continuity of insulation and covering penetrations or embedments.

Wood Framing:

Fasten blanket insulation between wood framing and joists with nails or staples through flanged edges of insulation.

Space fastenings maximum 150 mm (6 inches) on center.

Metal Framing:

Fasten insulation between metal framing with pressure sensitive tape continuous along flanged edges.

At metal framing or ceilings suspension systems, install blanket insulation above suspended ceilings or metal framing at right angles to the main runners or framing.

Tape insulation tightly together so no gaps occur and metal framing members are covered by insulation.

CLEANING

Remove excess adhesive before adhesive sets.

PROTECTION

Protect insulation from construction operations.

Repair damage.

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