Product Data Sheet

Aperture Specifications Metal Roofing Profile
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Aperture Specifications Single Ply Roofing
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Product Data Sheet

Aperture PU

Tensile strength (BS2782 : 320A)
Unreinforced system                                                              7N/mm2
Reinforced system 10                                                             9N/mm2

Elongation (BS2782 : 320A)
Unreinforced system                                                                   300%
Reinforced system 10                                                                    30%

Tear strength (BS2782 : 32013)
Unreinforced system                                                                7N/mm
Reinforced system 10                                                               25/mm

Coating adhesion (ASTM D4541)
Unprimed concrete                                                                 2N/mm2
Primed concrete                                                                  3-5N/mm2

Thermal cycling/low temperature flexibility (BS3900 : E I : 1992)
Thermal cycled film (16 hours @ - 25*C/8 hours + 80*C.
7 cycles) tested at 0*C.  Pass 5mm dia. mandrel

Freeze/thaw
Constant immersion, 16 hours @ - 20*C 8 hours @ -25*C. 5 cycles.
No significant changes in mechanical properties.

Impact Resistance
ASTM G 14-88                                                                        2.5 Joules
BS3900: E3               No cracking or detachment from substrate

Heat ageing (56 days) @ 70degrees
No significant changes in mechanical properties.


Water vapour transmission (ASTM E96/1653)
Specific permeability                                                         25/m2/day

Resistance to fire (BS476 : Part)
Indicative test rating

Accelerated weathering (ASTM G53 - 2000 hours)
Minor surface chalking, no blisters, no loss of adhesion

Salt spray (ASTM B117 - 1000 hours)
Minor surface chalking, no blisters, no loss of adhesion

Water Absorption (ASTM D570)
7 days - 5% weight gain
21 days - 6.5% weight gain

The Guide to Sealing Apertures in Metal Roofs and Walls

Specification

Single pack, ultra high solids, polyurethane embedment and protection coat, partially or fully reinforced with Elastomat glass fibre matting to provide a membrane of excellent mechanical properties.

Suitable for a wide range of existing substrates, including bituminous surfaces, GRP, concrete, timbER, asphalt, approved insulation boards, metal profiled sheets and single ply systems.

Features

• Cold applied, using hand lay process
• Durable finish
• Reinforced with chopstand matting
• Can be applied during or after construction
• Minimal disruption
• Maintenance free