Thermasote Nailbase Roof Insulation - page 2

a.

Apply wood nailers of same thickness as THERMASOTE^®  or NCFR^®/THERMASOTE^®  to surface of decking at all eaves and rake edges of roof to provide starter strip and nailing for trim and fascia. See Detail A.*

b.

Starting at low or outside edge of the roof, place the THERMASOTE^® or NCFR^®/THERMASOTE^® panel with Homasote^® face up on roof deck spacing 1/8", from blocking at eave and rake to provide expansion.

c.

For panel attachment instructions to structural deck, see "FASTENING SPECIFICATIONS" listed below.

d.

Place subsequent panels in like manner, lightly abutting the adjacent panel. Stagger panel joints in adjacent courses to avoid thru joints and assist in diaphragm action.

e.

As THERMASOTE^® or NCFR^® /THERMASOTE^® panels are installed cover immediately with roofing felt and finish roofing.

*NOTE: Apply vapor retarder over structural decking in areas of the country requiring a vapor retarder before the application of THERMASOTE^® or NCFR^®/THERMASOTE^® per "Installation Requirements" on reverse side.

NO MOISTURE FROM ANY SOURCE SHOULD BE SEALED INTO A ROOF SYSTEM. ROOFING FELTS, INSULATION OR VAPOR RETARDERS THAT BECOME WET OR WATERLADEN DURING CONSTRUCTION SHOULD BE REMOVED AND REPLACED BEFORE THE APPLICATION OF FINISH ROOFING MATERIALS.

1 .

To Homasote Easy-ply^® or Firestall Roof Deck - Nail panel to deck, 6" o.c. along all edges (hold nails back 1/2" from panel edge) and 12" o.c. through field of board. Use Homasote Nail (3/8 " head, annular threaded shank) of sufficient length to penetrate a minimum of 1" into deck.

2.

To Wood Decking - Nail panel to deck, 12" o.c. along all edges (hold nail back 1/2" from panel edge) and through the field of the board. Use a common galvanized nail of sufficient length to penetrate a minimum of 1"  into deck.

3.

To Metal Deck - Fasten panel to deck with appropriate self-drilling metal deck screw. Consult metal screw manufacturer for proper length and gauge to penetrate specific metal deck, in accordance with fastener pattern below.

4.

To Structural Concrete Deck -

5.

To Cementitious or Other Fiber Decks - Attach panel to deck in manner prescribed by respective roof deck manufacturer.

1.

Asphalt/Fiberglass Shingles *-Apply roofing felt and asphalt / fiberglass strip shingles directly to the THERMASOTE^® or NCFR^®/THERMASOTE^® panels.

Use Homasote Nail No. 2125 (3/8" head, 1-1/4" long, annular threaded, galvanized), Bostitch Nail No. CR3DGAL (3/8"  head, 1-1/4" long) shot with N12B Roofing Nailer, or Senco Staple No. P17BAB (1" crown, 1-1/2" long, 5562 galvanized wire with Sencoting) shot with the appropriate Senco stapler

* NOTE: Homasote Company requires the use of a premium or laminated roofing shingle over THERMASOTE^® or NCFR^®/THERMASOTE^® . The shingle must have a minimum weight of 240 lbs per square.

2.

Wood Shingles or Shakes - For wood shingles, attach roofing felt to the THERMASOTE^® or NCFR^®/THERMASOTE^® and apply shingle directly over the roofing paper with annular threaded, corrosion resistant nails of sufficient length to penetrate 1" into the THERMASOTE^® or NCFR^®/THERMASOTE^®. Apply shingles following the procedure outlined by the Cedar Wood Shingle Mfg. Association.

3.

Roofing Tiles or Slate - For rigid-type, non-wood, cement, clay tile, or slate shingles over roofing felt, use corrosion-resistant annular threaded roofing nails with 3/8" diameter head and of sufficient length to assure 1" penetration into the THERMASOTE^® or NCFR^®/THERMASOTE^®. In all cases, follow the recommendations of the roofing materials manufacturer.

4.

BUR - Apply according to BURSI standards for attachment to wood fiber insulation.

5.

Single-Ply Membranes - Apply to THERMASOTE^® or NCFR^®/ITHERMASOTE^® in accordance with single-ply manufacturer's recommendation. Consult Homasote Company for most recent single-ply manufacturers approval list.

6.

Metal Roofing - Contact Homasote Company for metal roofing application recommendations.