MetecnoSpan® Installation Guide

MetecnoSpan® Installation Guide
Introduction
About Metecno
Metecno is Australia’s leader in complete thermal building solutions
and lightweight architectural panels. As a business, Metecno has
been at the forefront of the Australian panel industry for over 50
years. More importantly, Metecno people individually have significant
experience in manufacturing and installing panels to suit Australian
conditions and to meet Australian building codes and regulations.
Being an Australian business is important to us and whilst we
enthusiastically embrace lessons and new product developments from
around the world we are proud that our experience is predominantly
in Australia forged in Australian conditions for Australian building
requirements. Metecno people have grown and learned with the
Australian building industry and will continue to do so. We have a
depth of experienced staff across Australia.
About this brochure
This brochure provides recommended installation sequences and
techniques for MetecnoSpan® installations in Australia and New
Zealand. The Australian Standards HB 39 Installation Code for Metal
Roofing and Walling has been referenced.
The installation techniques detailed in this brochure are to be
considered a guide and used in conjunction with all relevant
Australian and New Zealand standards.
While this brochure provides details for basic panel installation
procedures, further project specific details may be required. For those
non-standard installation applications, please consult our technical
team for assistance.
System A: Expansion Step (Preferred Method)
Allows true thermal movement. Upper and lower level roofs are
connected to purlins independently, therefore allowing for expansion
and contraction. The step joint is flashed utilizing baffle flashing
techniques proven in Australian conditions over the last 25 years.
This type of sheeting connection requires purlin/purlin cleats to be
stepped. Expansion steps are the preferred method to connect long
roof runs. They offer better corrosion resistance and better control of
thermal movement.
System B: End lap joint
Connects the upper and lower level roof runs in the same plane. This
system requires the core material to be removed completely as sealant
provides the waterproofing seal. Unlike System A: Expansion Step, this
end lapping process physically connects the upper and lower roof
sheets. This system is usually used when the roof steps have not been
constructed as stepped or other restrictions.
Recommended Practice for Transporting; Unloading & Storage of
Metecno Insulated Sandwich Panels
Transport
• Ensure all parts of panels are clear of other objects or load and is
protected from any protruding objects, to avoid damage to the panels
(e.g. DO NOT jam pallets up against panel packs).
• Driver must periodically check load restraints and resecure as required.
• Appropriate corner angles must be used under any strapping prior to tie
down, to avoid damage to the panels.
• Required number of cargo strapping is dependent on length of panels;
the straps should be spaced approximately every 2.0m (Fig. 1).
Unloading
(Note: Use of Powered Lifting Equipment must be carried out in keeping
with relevant State or Territories Laws and Regulations)
• Before unloading panel packs, check & ensure all packs are secure,
balanced & there is no visible sign of damage to packaging or panels.
• Unloading with Forklift
- Take care to avoid damaging panels when inserting or removing
fork tines from between packs. Do not lift panels without protecting
panel surface from fork tines (e.g. MDF protective sheets).
- Make sure load is correctly balanced and supported before unloading.
- For panels > 9.0m or flexible panels (e.g. Purline); use of a slip-on fork
spreader is recommended to distribute load across its full length to
avoid panel damage and ‘sagging’ (Fig. 2).
• Unloading with Cranes (Overhead/Truck etc)
- Ensure all appropriate lifting equipment is available; Sling, Separator,
Strap-down corner angles and Spreader beam (if required).
- Ensure separator (L x 1110mm = Solar Span, Metecno Panel/Span,
Purline; Flameguard, Equideck) is used to keep the sling spacing wider
than the packs also strap down corner angles (L 400mm x W 200mm);
to avoid damaging edge of top and bottom panels when lifting (Fig. 3).
- For panels > 8.0m long; use of a spreader beam with separator is
recommended to distribute load across its full length to avoid panel
damage and ‘sagging’ (Fig. 4).
Storage
• Store panel packs on hard even surface, slightly on an inclined position to
allow free drainage of rainwater which might otherwise penetrate into pack.
• Partially unpacked panel packs must always be protected against wet
weather and strong windy conditions.
• Prolonged storage of panel should be under cover protected from direct
sun exposure and wet weather conditions.
• When storing in open-air provide adequate protection from wet
weather, strong wind and contaminations. Use of canvas/tarp material is
recommended to provide adequate protection and ventilation that will
allow quick evaporation of any accumulated moisture (Note: DO NOT use
non-breathable material such as plastic film for protection purposes).
• Protective film applied during production process should be removed
while installing the panel, however no later than two months from date
of purchase. After short-term exposure to weather conditions the film
may start to crack, making it difficult to remove.
MAX. 2m
Fig. 1.
Positioning of Panel Packs and Cargo Strap.
4
Fig. 3.
1
Fig. 2.
4
Slip-On Fork Spreader.
3
2
2
Unloading of Panels of < 8.0m: 1. Lifting Sling;
2. Sling Separator (Timber/Channels).
Fig. 4. Unloading of Panels of > 8.0 m:
3. Spreader Beam; 4. Strap-down Corner Angles.
System A: Expansion Step – Step 1
(Preferred Method)
B
A
Install baffle flashing,
notched over lower roof
Lay lower level roof sheets
after core cutback and turn-up/
turn-down preparation
OPTIONAL PROFILED
FILLER STRIP
DIRECTION OF LAY
(Rh cutback shown)
SHEETING TRAYS TURNED DOWN TO 20°
PANEL CORE CUTBACK
• For added weather protection, profiled filler strips
can be added to lower level sheet before installing
baffle flashing
SHEETING TRAYS TURNED
UP TO FULL RIB HEIGHT
• Where possible, prepare core cutbacks and sheet
turn-up / turn-down on the ground before hoisting,
special tool available
TIPS ›
• Care required when nominating factory core
cutback shown is left to right
• Remove protective core strip on underside prior to
installation. Peel back core strip from underlap on
roof side prior to laying – completely remove core
strip within two days
TURN-UP / TURN-DOWN
TOOL AVAILABLE
1
System A: Expansion Step – Step 2
D
C
Lay upper level roof sheets
after core cutback and turn-up/
turn-down preparation
SHEETING TRAYS TURNED
UP TO FULL RIB HEIGHT
Baffle flashing notched and
fastened to lower roof
PANEL CORE CUTBACK
DIRECTION OF LAY
(Rh cutback shown)
SHEETING TRAYS TURNED DOWN TO 20°
UPPER LEVEL SHEETING TRAYS
TURNED DOWN 20°
PANEL CORE CUTBACK
OPTIONAL COVERING FLASHING
CLOSED CELL FILLER STRIP IF REQUIRED
2
Step 3
E
Ridge capping notched
to sheet profile
DIRECTION OF LAY
(Rh cutback shown)
FOLDED TRIM FLASHING TO SEAL
CORE IF REQUIRED
FILLER STRIP IF REQUIRED
3
System A: Expansion Step – Barge Options
Barge Option 1 – Composite Wall
Barge Option 2 – Tilt/Block Wall
4
System B: End Lap Joint – Step 1
B
Apply two runs of approved
sealant to lower sheet
C
Lay upper level roof sheet
after core cutback and turn-up/
turn-down preparation
SHEETING TRAYS TURNED
UP TO FULL RIB HEIGHT
A
Lay lower level roof sheet
after core cutback and turn-up/
turn-down preparation
DIRECTION OF LAY
(Rh cutback shown)
D
SHEETING TRAYS TURNED DOWN TO 20°
Rivets installed at
40mm centres per
Australian standards
TIP ›
PANEL CORE CUTBACK
• Use cutback from System ‘A’
5
System B: End Lap Joint – Step 2
E
Lay next lower level roof sheet
after core cutback and turn-up/
turn-down preparation
SHEETING TRAYS TURNED
UP TO FULL RIB HEIGHT
DIRECTION OF LAY
(Rh cutback shown)
SHEETING TRAYS TURNED DOWN TO 20°
6
Step 3
H
G
F
Rivets installed at 40mm centres
per Australian standards
Lay next upper level roof sheet
after core cutback and turn-up/
turn-down preparation
Apply two runs of
approved sealant
SHEETING TRAYS TURNED
UP TO FULL RIB HEIGHT
DIRECTION OF LAY
(Rh cutback shown)
SHEETING TRAYS TURNED DOWN TO 20°
7
System B: End Lap Joint – Step 4
J
I
Ridge capping notched
to sheet profile
Rivet and seal as
per previous steps
DIRECTION OF LAY
(Rh cutback shown)
mineral wool if required
8
Barge Options
NOTE ›
Barge Option 1 – Composite Wall
Parts of gutter and flashing trims
have been removed for clarity.
Barge Option 2 – Tilt/Block Wall
9
PIR Walling Products also Available from Metecno:
MetecnoPanel® is an Australian-made lightweight sandwich panel
with a PIR fire-retardant core. MetecnoPanel® is Factory Mutual
approved to FM 4880 - Unlimited Height. MetecnoPanel® is
suitable for all insulated panel applications, including cold stores
and freezers. MetecnoPanel® offers insurer-approved fire risk
reduction properties widely specified in Europe and USA.
metecno
The manufacturer reserves the right to change the specification without notice. Metecnospan® is a
trademark of Metecno Pty Limited. COLORBOND® and colour names are trademarks of BlueScope Steel.
Check against actual COLORBOND® sample as printed colours may not be accurate.
21/02/11-GL17706