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Diagonal Tie Wires |
Diagonal ties
are used as a bracing on the lower level of side rail
runs. The tie wire is fixed on the lower side rail using a
bottom tie brace bracket, which itself is fixed underneath
the vertical strut. The tie wire is then fixed to the
bottom of the upper side rail with a top tie brace
bracket. Tie brace brackets are available in single or
double configurations
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Used to
stabilise Z-purlins, anti-sag rods and apex ties are an
essential component of the roofing support system. Without
these, Z-purlins with the force of weight they hold
would give way and bend. The support that is offered by
these two components effectively minimises the horizontal
movement of the Z-purlins over the lifespan of the roofing
system.
 
We provide
quick fitting connectors on our anti-sag rods which fit into
place easily and securely.
Calculation:
Use this
calculation to derive the length anti-sag rods required;
A = Purlin
centres (A²), B = Sag Rod hole centres (B²)
A² + B² = C²
VC² = Rod
length between purlins
VC² + 64mm =
Production length
Anti-sag Rod showing connector |
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Vertical
Struts |
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We have a range
of vertical struts to suit different situations. The overall
length of the strut will depend upon the centres of the side
rails. Brackets are held in stock for different section
sizes of side rails.
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Rafter Stays |
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 Rafter
stays are utilised (as per the diagram) to provide the support system
with more rigidity. Rafter stays are
fixed to the bottom sides of the C-section sleeve and then to
a cleat on the main hot rolled rafter. We have a range of
sizes available in stock, as well as manufacturing to custom
specification.
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Fixings |
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A large range
of fixings are stocked for use with our profiled steel
cladding and cold rolled products. Fixings are normally
positioned in every other support across the width of
a profiled sheet. In exposed conditions, extra fixings would
be used.
Follow the
below recommendations to maximise stability and minimise
cost. Please note that these recommendations do not apply to
all situations, if in any doubt or in need of assistance,
contact our
sales department.
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Side laps
are stitched at 450mm centres and end laps at 150mm.
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If the
roof pitch is less than 15 degrees, the end lap stitching could be
increased to 200mm.
- If the
roof pitch falls between 7 and 4 degrees it is
recommended to use sealants on both sides and lap ends.
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a - ASF 17/G19 25mm steel |
j
- Pop Rivet |
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b
- ASF 35mm to heavy duty steel |
m
- 62mm timber screw |
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c
- ASF 65mm stand off to steel |
n
- 50mm timber screw |
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d
- ASF 75mm stand off to steel |
o
- 38mm timber screw |
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e
- ASF 82mm stand off to steel |
p
- 25mm timber screw |
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g
- Spring head nail |
q - MS19 tacking screw |
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h
- ASF 33 65mm to heavy duty steel |
r - Coloured screw cap (various) |
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i - Self sealing pop rivet |
s - MS202 screw |
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Sealants & Foam Fillers |
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A
wide range of specialised tapes and sealants are available on request.
The sales department will be able to advise on your specific
situation.
A range
of durable, deterioration resistant vapour barriers are available, reducing the
degree of condensation
and eradicating the risk of water ingress. Foam fillers
are manufactured to suit all our profiles,
are formed in both long and short flutes and are used to reduce draughts and vermin entry.
NOTE: The use
of our fillers is recommended to ensure a snug fit to Hayes'
range of profiles.
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t
- Foam Fillers |
u - Mastic Sealant |
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v
- Butyl Adhesive Tapes |
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