firestone_specifications
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The information provided within this chapter may assist the contractor to install the Firestone EPDM Systems in accordance with Firestone’s requirements. It may also help him and the designer to inspect the completed installation. For a more practical use, we collected the information in a chronological order. Each phase of the installation is illustrated with one or more 3-dimensional drawings. The reader may consult the 2-dimensional illustrations in chapter 5 when additional information is required. This chapter contains the following sections: Membrane Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . p. 3. 3

Membrane Installation - General Firestone recommends for each system the following panel widths. System Fully Adhered However, cold weather can affect the workability of the membrane. Specifically, the low talc coating and tight, firm packaging of the membrane may extend the time required for the membrane to relax during winter months. For Fully Adhered systems, fold lines remaining in the membrane during cold weather installation will make smooth bonding to the substrate difficult. Firestone therefore recommends to utilize standard 3.05 m or 5.08 m wide fold-free panels. R.M.A. systems...

The EPDM panels shall be installed in a fashion so that field and flashing splices are installed to shed water. Straight cuts are very important for a neat and easy application. Firestone recommends to use scissors, markers and chalklines to achieve this. Do not use cutters. Allow ample material for splicing with the overlap of adjoining sheets determined by the type of seam and tie-ins. The tie-in material will be determined by the applicable detail. Provide an extra 150 mm of membrane at roof edges and wall terminations to facilitate final positioning. Temporary ballasting during...

For Inverted Systems, install the extruded polystyrene insulation directly over the EPDM membrane. The insulation boards shall be installed within 6 mm of all projections. Do not bond the insulation boards to the membrane or to each other. Unroll a protection mat over the insulation overlapping at side laps a minimum of 100 mm and at end laps a minimum of 150 mm. The mat shall extend up at all vertical penetrations 10 mm above the ballast. 3.1.3 Membrane Installation With Bonding Adhesive Applicability This technique is applicable for Fully Adhered systems and as an alternative to...

The Bonding Adhesive must be roller applied in a thin even coat on both mating surfaces. Firestone recommends a two-man operation to facilitate equal drying times. Avoid globs or puddles of adhesive during application. An excess of adhesive will prolong the drying time and reduce production. The use of Superspreader equipment can speed up production and increase coverage due to a better distribution of the adhesive. When applying the adhesive manually, use large solvent resistant rollers (200 to 250 mm wide) with short hairs to apply the adhesive evenly. Care must be taken not to apply...

Compress the bonded half to the substrate with a stiff brush to ensure proper contact. Extra compression will strengthen the bond. Repeat the bonding procedure to complete the bonding of the sheet. Take special precautions when the outside temperature is below 10°C. Certain combinations of temperature and humidity may cause condensation on the surface of the Bonding Adhesive. If this condition occurs, do not mate the surfaces. Wait until the ambient air conditions no longer cause condensation, dry the surface with clean, dry rags, apply a thin additional layer of adhesive and proceed. As an...

Install the QuickSeam R.M.A. strips as required using approved plates and fasteners or batten strips and fasteners. When using plates, automatic fastening equipment can provide for a time-saving installation. For more information on the installation of batten strips, consult the section on the M.A.S. system hereafter. Prior to seaming the EPDM membrane to the R.M.A. strips, make sure that the EPDM panels lay smoothly and without any wrinkles. The EPDM membrane will be adhered to the QuickSeam R.M.A. strips as outlined in the following chapter. When working onto a continuous support...

At perimeters and in zones of higher wind pressure, the EPDM membrane may be either fully adhered to the substrate following the technique previously described or mechanically attached using one or more additional rows of batten strip running parallel to the already installed battens. Crossing T-strips shall be installed along the inside edge of the perimeter zone where the batten strips run perpendicular to the parapet. Prior to installing the batten strips over the sheets, make sure that the EPDM panels lay smoothly without any wrinkles and remove excess dirt and moisture from the...

The fastener must be properly engaged in the deck. Use caution not to overdrive fasteners, as this will cause buckling of the batten strip between the fasteners and reduce the pull-out value of the fastener. If the strip kinks, loosen the screw slightly. An electric screw gun with an automatic clutch control or an automatic installation tool is recommended. Once the tools have been set, all fastener installation will be consistent. Crossing strips should not overlap. Stop the strips at 250 mm away from each other so that cover strips can be installed without overlapping. When working onto a...

3.1.6 Membrane Installation - System B.I.S. Applicability This technique is applicable for the side laps in the mechanically attached systems B.I.S.. Installation Instructions The field membranes are mechanically attached to the substrate with batten strips centred in the side seams of adjoining sheets. Select the size of the panels in function of the spacing requirements for the batten strips. Consult the table below to identify the most appropriate panel width. Spacing between batten strips (m) Consult the wind design calculation and batten strip layout for information about the position...