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| Working with In
Plane Factory Assembled Rooflights |
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| Handling |
| As the sheets have sharp edges and corners which can easily
cut hands, protective measures such as gloves and safety clothing
should be worn. It is particularly hazardous to handle FAIRs
in windy conditions, as they have a large surface area. Special
care should also be taken when carrying across exposed rooftops.
FAIRs need particular care when handling, as it is easy to induce
large, damaging stresses into such long and rigid units. Do
not lift only at each end - lift long units by one side and
carry vertically, not horizontally. They must not be dropped,
bent, twisted or walked on. FAIRs in excess of 3m long must
be carried by more than one person. |
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| Stacking |
| All FAIRs should be stacked horizontally, preferably on a
continuous, non-abrasive, flat, dry surface, or on timber bearers
at least 100mm wide, placed below the internal supports. Always align internal supports in a stack and stack height should not exceed 2000mm, or 1000mm where longer term storage will be required. FAIRs of differing lenghts should not be placed on the same stack. |
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| Storage |
FAIRs should always be stored on the delivery pallets, and indoors where possible. If
storage outdoors cannot be avoided, then a secure storage
site should be provided, well away from foot and vehicle traffic
and ongoing construction work. All FAIRs stored outdoors must
be covered with a reflective, opaque, waterproof cover
draped over timbers placed on
top of the stack to avoid direct contact between FAIR and
cover. Secure the cover completely against the wind
to prevent any water penetration of the stack, which can cause
condensation, and to protect against exposure to direct sunlight,
as heat build up can damage the rooflights. Also provide ventilation
to give air circulation around the stack and prevent heat
build up under the cover. |
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| Maintenance |
| The general condition of a FAIR and the security of fixings
and seals should be checked periodically as part of the overall
maintenance programme for the structure. Rooflights and fixings
should be inspected every 2-3 years, and fixings re-tightened
or replaced as necessary. If a rooflight is damaged, it must
be replaced in accordance with the original specification for
the installation to remain non-fragile. |
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| Cleaning |
FAIRs should be cleaned, if necessary, to prevent
any growth which may attack the protective surface film, or
dirt accumulation which could lead to heat build up. Loosen
any dried dirt with lukewarm water and wash with a lukewarm
soapy water solution using a soft cloth or sponge to gently
remove dirt. Repeat this process if necessary, rinse off and
dry with a soft cloth. Never use solvents or alkaline cleaners.
Do not scrub with brushes or sharp instruments as these will
mark the surface. |
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| Cutting |
Provided the correct information is supplied
prior to manufacture, it should seldom be necessary to cut
FAIRs on site. Cutting can cause damage which will seriously
affect the insulation properties of the rooflights. If cutting
is necessary, use either: a hand or power saw having a blade
with 6-8 teeth per cm and cut slowly with the blade held at
a shallow angle; or a power saw having a blade with 6-8 teeth
per cm and cut slowly with the blade held at a shallow angle;
or a power saw fitted with a 40/60 diamond grit blade, feeding
the sheet into the saw at a constant medium speed. Support
the FAIR close to the cut and take care to avoid creating
stress or vibration when cutting. |
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| Drilling |
Holes must never be punched through rooflight
sheets - use a hand drill or electric drill but always
drill at a low speed. FAIRs can be drilled with a standard
metal drill bit. FAIRs should only be drilled where there are internal spacers, with support provided to the spacer to avoid creating stress or vibration. |
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| Hole Size |
| To accommodate thermal movement in polycarbonate
FAIRs, holes for primary fixings should be drilled at least
10mm diameter for FAIR lengths up to 3m and 12mm diameter for FAIR lengths up to 4m. If this is not done, thermal movement will crack the FAIR at the fixing positions. Oversize fixing holes are not required for GRP FAIRs. |
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| Packaging |
| All FAIRs can be supplied wrapped onto wooden
pallets to assist site offloading and handling, and to maintain product quality. Please enquire
for full details. |
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Technical
Support |
Please
contact Brett Martin Daylight Systems for further guidance,
e.g.
technical bulletins sheets, NBS product specification.
etc |
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