| |
|
Installation
Guidelines
Marlon ST Longlife can be installed using many of the currently
available glazing systems designed for structured glazing sheets
of PVC, acrylic and polycarbonate material.
When installing Marlon ST Longlife sheets it is imperative that
the following information is read in conjunction with the fitting
instructions for the glazing system being used.
|
Fitting of Marlon ST Longlife polycarbonate sheets should be the
last operation in completing the project. The structure should be
finished with all components of the selected glazing system in place
and wood preservatives, when used, thoroughly dry.
Roofs should always be designed with a minimum slope of 5° to
allow adequate rainwater run-off.
Marlon ST Longlife sheets must always be installed with the ribs
running vertically or upslope.
Always ensure that sealants, gaskets and other materials used with
Marlon ST Longlife do not have a detrimental effect on the material.
A
low-modulas neutral silicone MUST be used as an
all-purpose silicone will cause Marlon ST Longlife
to crack and distintegrate.
Installation
All aspects of preparation for installation should be completed
prior to glazing with Marlon ST Longlife. The recommended steps
generally involved are set out below :
1. Ensure that the clearly marked UV protected surface of
the Marlon ST Longlife sheet is to the outside. About 50mm of protective
film should be peeled back from the edges of the sheet prior to
application and the residual film removed after glazing is complete.
2. The diagram opposite the correct orientation of Marlon
ST sheet in application.
A breather tape applied to the bottom of the sheet permits air to
move freely in and out of the sheet, helping minimise condensation
by equalisation of the air vapour pressure inside and outside the
sheet. The breather tape also prevents dust or insects entering
the sheet.
 The
breather tape must be covered with a ‘U’ profile, sealed
to the top face of the sheet with a small silicone bead to protect
both the tape and the lower end of the sheet from rainwater run-off.
Allowing air movement through the breather tape does not reduce
the insulation performance. Following these procedures reduces the
risk of condensation, water ingress and the growth of algae within
the sheet.
3. Drainage of condensed water vapour is encouraged by installing
the sheet with its ribs running in the direction of the slope.
4. The channels of Marlon ST Longlife should further be protected
from dust and excess moisture by proper top sealing as shown in
the diagram.
5. Marlon ST Longlife sheet has been proven to be suitable
for use with a substantial number of commercially available glazing
compounds, building materials and profile systems. However, it is
still vital that advice on chemical compatibility should be sought
either from Brett Martin's Technical Department or the manufacturer
of interfacing products.
|
|
|
|
