25 Sep, 2017

Roof Deck Board Insulation (RI/RD)

Roof Insulation

 

Roof Insulation and Roof Deck Board Insulation are composed of fine, stable and uniformly textured inorganic glass fibers bonded together by non water soluble and fire-retardant thermosetting and heat resistant resin, and formed into rectangular rigid boards of heavy density. It is free from coarse fibers and shot due to its mineral composition.

Facing

Roof Deck Board is available unfaced as standard. It is also available with other facing upon requirement. The facings are also available with UL fire resistant rating.

Standard nominal density

      • 112 kg/m3 , 7.0 lb/ft3.
      • Nominal Manufacturing Specifications.
      • Check for availability of other dimensions and densities.

Application

AFICO Roof Deck Board Insulation is rigid glass fiber board for thermal of structural roof decks. It is designed for use over flat or low slopping nailable, non-nailable and metal roof decks. Its functions are:

      • To provide resistance to heat flow through the roof systems.
      • To provide a resilient base for the membrane roofing.
      • To reduce effects of deck movement forces on membrane roofing.
      • Good appearance, strength & abuse resistance.

AFICO Roof Deck Board Insulation is a rigid glass-fiberboard designed specifically for use with loose-laid, ballasted single-ply roof membrane system, as thermal insulation to reduce heat gain or loss through the roof system. In addition to providing resistance to heat-flow through the roof system, it also conforms to minor deck irregularities, reduces effects of deck movement forces on membrane roofing and provides a dimensionally stable, flat surface for the membrane roofing applications.

Installation Recommendation

AFICO Roof Deck Board Insulation may be applied over steel, wood fiber, poured-in-place or precast concrete, lightweight concrete, and gypsum concrete roof decks.

Decks should be rigid, tight, dry smooth, clean and free from defects and damage. Insulation should be laid in courses parallel to edges. End joints should be staggered unless roof tape is use. Insulation edges should be butted to provide moderate, not deformed, contact. Adequate asphalt, adhesive or mechanical fasteners must be used.

For concrete decks, prime deck with asphalt primer using one liter per 2.5 m2 of deck area. Embed insulation in a solid mopping of hot asphalt, using 15 kg per 10 m2 of deck.

For steel decks, lay insulation with edges parallel to flutes and bearing surface. Secure insulation to deck surface by embedding insulation in 50 to 75 mm wide ribbons of hot asphalt, using 7 kg per 10 m2 of deck. Insulation can also be secured with cold adhesives or mechanical fasteners used in accordance with the manufacturer's recommendations. For more details on application to other deck surfaces, in multiple layers or with vapor barriers, contact AFICO.

Roof Deck Board is placed directly on the roof deck, covered with a single-ply elastoplastic membrane, and then ballasted. Care should be taken to ensure all joints are tightly butted to minimize heat flow through the joints. The large size boards facilitate quick installation. Application of Roof Deck Board as substrate for a loose laid membrane should be in accordance with the membrane manufacturer’s requirements.