Description

Fesco Board is a homogeneous board, composed of expanded perlite, a volcanic ore, blended with selected binders and fibers. The perlite particles are subjected to intense heat which causes them to expand approximately fifteen times their original size. The resulting glass-like beads contain air cells which provide high insulating efficiency.

The top surface of Fesco Board is sealed with a unique coating, TopLoc^®, to ensure optimum adhesion of a built-up or modified bitumen membrane. The TopLoc coating gives Fesco Board a smoother surface for easier application of hot asphalt or cold adhesives.

Application

Fesco Board is a rigid, thermal roof insulation for use in built-up, modified bitumen and some single ply roofing systems. It may be applied using hot asphalt, cold adhesives or mechanical fasteners.

Tapered Fesco Board is the low thermal product of choice for providing positive slope to drain on both new and reroof construction. For more information on Tapered Fesco and the JM Tapered Systems Group design capabilities, refer to pages 9-15 and 9-18.

Sizes

Fesco Board is available in 2' x 4' (0.61 m x 1.22 m) and 4' x 4' (1.22 m x 1.22 m) boards in standard thicknesses of  ¾", 1", 1 ½" and 2" (19 mm, 25 mm, 38 mm and 51 mm). Other sizes are available on request.

Advantages

Environmentally Friendly. The minimum recycled content is 25% by weight.

Fesco Board complies with Environmental Protection Agency Regulation 40 CFR Part 248, Guideline for Federal Procurement of Building Insulation Products Containing Recovered Materials, as a recycled product approved for use on any project using federal funds.

Strength and Durability. When applied over rigid decks, Fesco Board’s high laminar tensile strength resists damage from on-the-job and maintenance traffic, offers an excellent substrate for all roofing membranes, and effectively bridges flute openings in metal decks.

Dimensional Stability. Because of its perlite composition and low water absorption rates, Fesco Board is dimensionally stable over a wide range of weather conditions.

Fire Resistance. Fesco Board has excellent fire resistance and is approved for use in FM and UL approved constructions. Because of its perlite content, Fesco Board offers far greater fire resistance than conventional wood fiber materials.

Mopping Surface. Fesco Board provides an excellent base to receive a built-up or modified bitumen membrane. It has excellent compatibility with hot asphalt.

Good Adhesion. The top surface of Fesco Board is sealed with TopLoc coating to control the penetration of mopping asphalt, helping to ensure proper adhesion of the roofing membrane.

Stable R-Value. Fesco Board has a stable R-value because it is composed of inorganic and fibrous materials.

Thermal Values

Applicable Standards

Fesco Board complies with the material requirements of ASTM C 728.

Factory Mutual

Fesco Board has been rated in Factory Mutual fire and wind-resistant systems for BUR, single ply and modified bitumen constructions. This testing is specific to the roof deck, insulation, fastener, fastener pattern and the membrane. For current information on JM FM approved systems, contact a JM Technical Service Specialist, JM Sales Representative or consult the current FM Approval Guide.

Underwriters Laboratories

Fesco Board is classified by Underwriters Laboratories, Inc. and is approved insulation for numerous Class A roof constructions. Contact a JM Technical Service Specialist for details regarding specific approvals.

Fesco Board conforms to Underwriters Laboratories, Inc. Fire Hazard Classification, as a Roof Deck Construction Material (internal fire exposure) for use in Construction Numbers 1, 2, 156, 157, 158, and 374, and as a Built-Up Roof Covering Material (external fire). See the current UL Roofing Materials and Systems Directory. Material will have UL labels only when requested on the order.

UL Fire-Rated Assemblies

Fesco Board is also listed by Underwriters Laboratories, Inc. for use in fire-rated assembly design numbers as shown in the chart below. See the current UL Fire Resistance Directory.

UL Roof/Ceiling Assembly Approvals

Fesco Board Roof Insulation is listed by Underwriters Laboratories, Inc. for use in fire-rated assembly design numbers P001, P004, P201, P206, P210, P211, P224, P225, P230, P237, P238, P250, P254, P259, P267, P404, P502, P508, P510, P514, P701, P708, P710, P713, P718, P720, P723, P729, P734, P735, P737, P740, P801, P803, P805, P810, P814, P815, P818, P828, P904, P909, P912 and P915.