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Solar Energy Systems
Mounting instructions – MSP-FR-EW flat roof PV mounting system
Figs. 7A and 7B: Insert screws into connection channels
Note: This step is intended as a pre-assembly step that can be performed off the roof.
1. Position the screws (MSP-FR-S, ) into the connection channels (MSP-FR-EW-C, ) in the correct hole.
The correct hole is indicated in the software report.
Note: There are three lengths of connection channels and each length may require the use of different
holes. Additionally, the holes at each end may differ by a space of one. The connection channels are sym-
metrical in design, so it does not matter which end each hole position is used.
2. When positioned in place the screws (MSP-FR-S, ) should extrude approximately 2-5 mm through the
underside of the connection channels (MSP-FR-EW-C, ).
Figs. 8A and 8B: Layout components on roof and measure out starting point
1. The components should be laid out so as to avoid concentrated loads on the roof, and appropriately to
enable easy and quick installation.
Note: Short connection channels (MSP-FR-EW-C, ) run in the east-west direction and longer connection
channels run in the north-south direction. If two lengths of base profiles (MSP-FR-EW-BP, ) are being
used, the shorter ones will be placed around the edges of blocks while the longer length base profiles will
be used in the block centers.
2. Following the details in the software report, measure out the position of the starting lower support (MSP-
FR-EW-SL, ) and place it appropriately.
Note: Ensure the correct base profile (MSP-FR-EW-BP, ) length is used (it will be the shorter one if two
lengths are being used).
Figs. 9 and 10: Assemble connection channels
Note: No loose screws (MSP-FR-S, ) will be needed on the roof since they are all preassembled in the
preceding steps.
1. Fix the shorter connection channels (MSP-FR-EW-C, ) (running in the east-west direction) to the sides
of the high supports (MSP-FR-EW-SH, ) and low supports (MSP-FR-EW-SL, ), tightening the pre-as-
sembled screws with a torque of 10 Nm. The connection channels (MSP-FR-EW-C, ) can be fixed either
side of the supports and in either direction.
2. Fix the longer connection channels (MSP-FR-EW-C, ) (running in the north-south direction) within the
high supports (MSP-FR-EW-SH, ) so that the support is also screwed onto the base profile (MSP-FR-
EW-BP, ), tightening the pre-assembled screws with a torque of 10 Nm. Always use the hole nearest the
edge of the high support for each connection channel.
Note: If any walking paths have been selected for the layout, refer to the software report to ensure correct
placement (location and channel length) for the walking path inclusion.
Fig. 11: Installation of additional layer of protection sheet
Note: This step is only required for roofs with a bitumen or EPDM roof covering. The software report will indi-
cate if this step is necessary.
1. Under each base profile (MSP-FR-EW-BP, ), position a second protection sheet piece (MSP-FR-EW-
PSF, ) of equal length to the protection sheet fixed to the base profile, so that it sticks down onto the roof
surface. Subsequently, the two layers of protection sheets will be in contact with each other one-to-one.
2. If the base profile (MSP-FR-EW-BP, ) is positioned over an overlap of membrane layers, ensure the pro-
tection sheet (MSP-FR-EW-PSF, ) is level by providing additional layers of protection sheet as appropri-
ate.
© Ernst Schweizer AG
Ernst Schweizer AG, Metallbau
CH-8908 Hedingen
Telefon +41 44 763 61 11
Telefax +41 44 763 61 19
www.schweizer-metallbau.ch
Mounting instructions - MSP-FR-EW
technical changes reserved
27.03.2015/BRX
page 6/12
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