Manufacturer’s Assistance
These instructions are intended for Tuff Span building panels to be installed as roofing or siding. For further assistance, please contact:

Enduro                                             Tel: 713-358-4000
16602 Central Green Blvd.               Fax: 713-358-4100
Houston, Texas 77032                     sales@endurocomposites.com

Material Handling
1. Inspect materials upon delivery. If damage is found, promptly advise both freight carrier and     Enduro. Note damage on carrier’s receiving ticket.
2. When lifting panels, use spreader bars. Do not use wire slings unless panels are protected.
3. Use planking when moving loads across panels. Do not overload or use panels for storage     platforms.
4. Protect panels from surface cuts, impacts, and abrasions.
5. Avoid interference and extreme bending when covering corners, valleys, and uneven surfaces.
FRP materials cannot be reshaped by use of external force such as hammering or extreme bending.
6. Use abrasive cutting tools or fine-toothed saws to cut panels.

Storage of Bundled Panels
1. Store bundled panels off the ground high enough to allow air circulation under the bundle and     to be above standing water. Elevate one end of the bundle for water drainage.
2. Prevent rain from entering bundle by covering with a tarp or shelter. Avoid moisture between     bundled panels, by providing air circulation between draped edges of tarp and ground.
3. If water is present in the bundle: Open the bundle, separate the panels, and dry the     materials.
4. If conditions do not permit immediate installation, extra care should be taken to protect     panels while nested in bundles against trapped moisture, which can cause permanent     watermarks.

Installation
1. Start panel installation on end of building opposite the prevailing wind. Install flashing that     goes under panels first.
2. Make sure bearing areas are clean and free of projections. Place panels with embossed     surface facing outside of building.
3. For roofing applications, apply a continuous bead of butyl sealant tape between nesting side     laps and before installing side lap fasteners (see Side Lap Detail).
4. Pilot holes must be drilled for Type A and B stainless steel screws. Correct drilling of pilot     holes is critical to the installation. Refer to the Drill Bit Selection Chart for correct Drill Bit size.     Pilot holes are not required for SX6 Self-Drilling screws.
a. Drill pilot holes through panels and structural support at very slow speed using a sharp     carbide-tipped sheeter’s bit. High-speed drilling hardens inside of holes, making it difficult for     fastener threads to bite (thread rolling) and causing drill bits to burn-up faster than normal.     Using a lubricant may extend life span of bits.
5. Fasten panels to supports at correct spacing with proper fasteners and washers. See     Fastener and Sealant Guide; Selecting Fasteners.
    a. Drive all screws at 500 rpm or less. To avoid excessive speed and heat build-up,     “trigger” the drill motor (turn it on and off). If thread rolling occurs, lubricate screws with a drill      bit lubricant.
     Thread rolling may occur when driving 316 stainless or monel fasteners into hard steel. If this      happens, use a heat-treated Type B carbon steel screw to tap the hole before installing Type      A or B stainless steel or monel fasteners.
     b. Tighten screws until the sealing washer extrudes slightly beyond the metal washer (see     diagram below). DO NOT OVER TIGHTEN screws as this can damage materials.
6a. For panel side lap attachment, Mark and drill a 3/8” diameter pilot hole for the SB2 Grommet     fastener. See Fastener and Sealant Guide for spacing.
    b. Before inserting the SB2, draw adjacent panels together to prevent premature spreading of     the fastener.
    c. Install SB2 fasteners using an adjustable torque driver at slow speed. Tighten the SB2 until     the grommet washer extrudes out slightly beyond the metal washer.
7. Install flashing with SB2 fasteners, 12” on center. Pilot holes are required for SB2 grommet     fasteners.
8. Insert closure strips and secure them with fasteners or adhesive caulk (if condition is not     suitable for fasteners).
9. Apply sealant tape and caulk where specified or shown on drawings. Surfaces must be clean     and dry before application.
10. Masonry or other abrasive type blades are suitable for field cutting of Tuff Span panels.     Diamond blades are also suitable.

Cleaning and Repair
1. Clean panels with soap and water first. If this does not work,some solvents can be used to     clean spills or stains on Tuff Span. However, solvents should be used sparingly and only if     absolutely necessary. Some solvents like acetone may remove the acrylic polymer surface     coating on coated materials.
2. Minor damage to deck or flashing can be patched with a Tuff Span repair kit. Materials with     other damage should be replaced.







Panel Side Lap Detail
Place butyl lap tape at side laps as shown.
Do not place tape on top of ribs.

Selecting Fasteners
1. Type A Point screws (3/8” hex head): Used for fastening to wood structure, light gage metal     (14 gage or lighter) and Tuff Span FRP structural members.
2. Type B Point screws (3/8” hex head): Used for fastening to steel members, 12 gage up to     1/2” thick.
-  Type A and B fasteners are available in 300 and 316 stainless steel or monel. These metals    are softer than carbon steel: so extra care must be taken for installation.
-  Type A and B fasteners will include a .729” or 1.125” diameter metal and neoprene seal    washer as required by specifications and structural requirements.
3. SX6 Self-Drilling screws (5/16” hex head): Suitable for fastening of 6.5 Roof Deck to carbon    steel members, 14 gage up to 1/4” thick. SX6 screws are available only in 305 stainless steel    with S19, 3/4“ diameter washers.
4. SB2 Grommet (5/16” hex head): Used to fasten flashing and panel-to-panel side laps. The SB2     is a grommet type fastener with a machine screw (300 and 316 stainless steel or monel),     brass nut, and rubber sleeve.