Solar Energy Systems 01.09.2009
Page
18
Mounting Directions for In-Roof Photovoltaic Systems
Ernst Schweizer AG, Metallbau, CH-8908 Hedingen, T41 44 763 61 11, T41 44 763 61 19, www.schweizer-metallbau.ch
1 Flashing ridge left
5 Flashing upper right side
2 Flashing ridge middle
6 Flashing ridge right
3 Join capping piece
7 Flashing right side
4 Roof
tile
8 Photovoltaic
module
The ridge flashings left and right have a special construction and lock into the corner flashings and thus ensure a
rainproof junction. The ridge flashings are joined at the upturn, or bevel fold, by means of a capping sheet, which
also guards against the weather.
3.5.3
Eaves skirting, seam sealing strip and bottom mounting clamps
Lower Seam
The photovoltaic modules can be mounted either directly on the eaves or above the tiles.
For the crossover from the lower array edge to the tiles it is normal to use eaves skirting as for other in-roof fixtures,
such as dormer windows (rolled lead sheet 150 mm or Mage flex aluminum roll black 280 mm available as
accessories).
The sealing strips (valley sealing strips) are mounted on the eaves skirting in order to close off the roof hollows for
small animals and insects.
TIP
It is advisable to lay a 17 mm spacing block underneath the mounting clamp “glass” in the lowest row. This is to
prevent the back side of the module from coming into contact with the fold of the mounting clamp by heavy snow
load.
4 Mounting
4.1
Tools, Auxiliary Material
Have the following tools and other material at hand during the mounting process:
Carpenter’s pencil
String / chalk line
Tape measure and measuring stick
Screwdriver set
Nails for sheet grips
Hammer for sheet grip nails
Level
Wood saw
Sheet metal shears and tongs
Knife
Portable electric screwdriver with T25 bit
Angle grinder (diamond grinding wheel) for removing tile nibs
Multimeter
Ultraviolet-resistant cable ties
