THERMAL AND MOISTURE PROTECTION

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1 RELATED DOCUMENTS: The general provisions of the Contract, including General and Supplementary Conditions, and General Requirements, and Division 1 specifications that apply to the work specified in this Section. PART 1: GENERAL DESCRIPTION OF WORK: Work of this Section shall consist of furnishing all labor and materials required to insulate exterior CMU/brick cavity walls, exterior stud/brick cavity walls, interior stud walls, foundations, interior ceilings, and acoustical sound tubes all as shown on Drawings and as specified herein. INDUSTRY STANDARDS: For listing of names of industry standard agencies mentioned by abbreviation in this section refer to Section QUALITY ASSURANCE: Extent of insulation work is shown on drawings and indicated by provisions of this section. Applications of insulation specified in this section include the following: Spray Applied Polyurethane Insulation (interior) Foil-faced Polyisocyanurate Ceiling fiberglass blanket Insulation. Sound Attenuation Batt Insulation (install at all interior metal stud / gypsum wallboard partitions) QUALITY ASSURANCE: Thermal Conductivity: Thicknesses indicated are for thermal conductivity (k-value at 75 degrees F or 24 degrees C) specified for each material. Provide adjusted thicknesses as directed for equivalent use of material having a different thermal conductivity. Where insulation is identified by "R" value, provide thickness required to achieve indicated value. SUBMITTALS: Product Data: Submit manufacturer's product specifications and installation instructions for each type of insulation and vapor barrier material required. PRODUCT HANDLING: General Protection: Protect insulation from physical damage and from becoming wet, soiled, or covered with ice or snow. Comply with manufacturer's recommendations for handling, storage and protection during installation. PART 2: PRODUCTS FOIL-FACED POLYISOCYANURATE SHEATHING BOARD 3/9/

2 Foil-Faced Polyisocyanurate Foam Sheathing Board: ½ thick uniform closed-cell polyisocyanurate foam core board bonded on each side to a foil-facer. One side has a reflective foil facer and other has a white non-reflective foil facer. R-2.7. Comply with ASTM C1289 Type 1, Class 1; and ASTM E84. FOAMED-IN-PLACE STUD WALL CAVITY INSULATION: Foamed-In Place Stud Wall Cavity Insulation shall be a seamless two-component, one-to-one by volume, self-adhering spray-applied rigid polyurethane foam system, using blowing agent HFC-245fa, and including an anti-microbial ingredient. Application: Substrate to which insulation is applied must be clean, dry, and free of frost, ice, loose debris, or contaminates that will interfere with adhesion of the spray foam insulation. Apply primers to surfaces where required by manufacturer s installation instructions. Spray apply to substrates when ambient air temperatures are between 50 degrees F and 120 degrees F, following all manufacturer s installation guidelines. Apply after the perimeter wall is in place, windows and doors installed, and rough-in plumbing and electrical inspections are completed. Mask off all areas not to receive insulation and release agent to stud facings to facilitate removal of foam. Remove all overspray and overfill from interior stud facings, remove all masking materials. Accessories: Joint Filler Foam: Hilti CF 124 Filler Foam or equivalent. Caulk: Sikaflex 1a single component polyurethane or equivalent Use joint filler foam and/or caulk to seal around windows, doors electrical raceways, multi-piece metal stud sill plates and headers, multiple joined studs, wall opening perimeters, etc. Physical Characteristics and Properties: Foamed-In-Place Stud Wall Insulation shall equal or exceed the following: A. Core density: lbs/cu.ft. per ASTM D-1622 B. Compressive Strength: psi per ASTM D-1621 C. R-Value: 6.4 per inch (aged), per ASTM C-518 D. Closed Cell Content: > 90% per ASTM D-2856 E. Moisture Vapor Transmission: 0.7 at 2 thick F. Surface Burning Characteristics: Flame Spread Index 25 and Smoke Developed Index 450 per ASTM E-84 Acceptable Products: A. NCFI Spray Foam System by NCFI Polyurethanes, PO Box 1528, Mt. Airy, NC B. Bayseal CC by BaySystems C. Styrofoam Brand SPF Insulation by Dow Chemical Company D. Or equivalent products per information submitted to and accepted by the Architect. Quality Assurance: A. Insulation shall be installed per the manufacturer s printed instruction submitted to the Architect prior to the start of work. B. Insulation shall be installed by a contract installer who has been trained and certified by the manufacturer. The contract installer shall have not less than three (3) years experience in the trade and be properly licensed to perform the scope of work. C. Follow and adhere to all manufacturer s and OSHA safety guidelines. D. Upon completion of the installation, the contract installer shall provide 4-color infrared thermal images of all exterior wall surfaces to the Architect to confirm that foamed-in-place stud wall insulation completely fills all spaces required to be insulated. If the thermal images show voids, the contract installer shall apply foam to correct the deficiency at no added cost to the Owner. E. Provide a one year product performance warranty by the manufacturer. Alternative Barrier System Required in Areas Not Protected with Drywall or Masonry: 3/9/

3 A. Areas of Spray Foam Insulation not protected with Drywall or Masonry shall be protected with an approved intumescent covering, equal to International Fireproofing Technologies, Inc., DC-315, spray applied 21 mils wet / 14 mils dry minimum, meeting al requirements of the NC Building Code and IRC. CEILING INSULATION: Unfaced Blanket-type Glass Fiber Ceiling Insulation: Inorganic non-asbestos fibers formed into semi-rigid blankets, R-13, 24 x 48 batt size. Do not insulate over lighting fixtures. Provide over all ceilings, unless otherwise noted. SOUND ATTENUATION BATT INSULATION: Sound Attenuation Batt Insulation: Mineral wool blankets, 2 1/2" thick, manufactured by USG, USM, Owens-Corning or equal providing STC ratings scheduled. Install in strict accordance with manufacturer's printed instructions and at all interior metal stud / gypsum wallboard partitions. Provide all necessary anchoring accessories for a complete no-sag installation. PART 3: EXECUTION INSPECTION AND PREPARATION: Installer must examine substrates and conditions under which insulation work is to be performed, and must notify Contractor in writing of unsatisfactory conditions. Do not proceed with insulation work until unsatisfactory conditions have been corrected in manner acceptable to Installer. Clean substrates of substances harmful to insulations or vapor barriers, including removal of projections which might puncture vapor barriers. INSTALLATION: General: Comply with manufacturer's instructions for particular conditions of installation in each case. If printed instructions are not available or do not apply to project conditions, consult manufacturer's technical representative for specific recommendations before proceeding with work. Extend insulation full thickness as shown over entire area to be insulated. Spray, cut and fit tightly around obstructions, and fill voids with insulation. Remove projections which interfere with placement. END OF SECTION 3/9/

4 Hite associates Hite associates ARCHITECTURE / PLANNING / TECHNOLOGY ADDENDUM NO. 2 March 9, 2018 Project: RENAISSANCE CENTER RENAISSANCE CENTER Duplin County Schools TO: ALL BIDDERS The following items clarify, add to, delete from, and / or otherwise change and supersede information previously issued to you in the bidding documents for the referenced project. Please read them carefully and adjust your bid accordingly. Please note that addendums, and all revised documents are available via Hite Associates website com under the Contractor "Contractor Resources Resources" link. ADDENDUM NO Section 07200: Provide R-13 un-faced fiberglass batt insulation blankets continuous over all ceilings, unless otherwise noted. Do not insulate over light fixtures. 2. Clarification 09250: Orange Peel texture is required throughout all gypsum wallboard surfaces per Clarification Section 07200: Per Section 07200, an Alternative Barrier System is required for all exposed spray foam insulation for areas not protected with drywall or masonry. Spray foam insulation shall be protected with an approved intumescent covering, equal to International FireproofingTechnologies, Inc., DC-315, "DC-315", spray applied 21 mils wet / 14 mils dry minimum, meeting al requirements of the NC Building Code and IRC. END OF ADDENDUM NO. 2 James G. Elite, AIA, Project Architect James G. Hite, AIA, Project Architect Hite Elite Associates, PC BIDDERS PLEASE NOTE THAT REFERENCED REVISED DOCUMENTS AND DRAWING REVISIONS ARE MARKED AS SUCH ON THE REVISION BLOCK ON THE PLANS AND ARE TO BE ACCESSED ON THE HITE ASSOCIATES AS SUCH ON THE REVISION BLOCK ON THE PLANS AND ARE TO BE ACCESSED ON THE HITE ASSOCIATES WEBSITE Meridian Drive / Greenville, NC / tel / website:

5 RENAISSANCE CENTER ADDENDUM NO.2 N0.2 Page 2 Revised / Added Documents: Section Building Insulation cc: dist.: : All Bidders / Roger Jones JGH / RBE / WP / BQ/ / File: Bids & Addenda 2600 Meridian Drive / Greenville, NC / tel / website: