Skillion PRE-CUT seal is a two piece design flashing from  Campbell Shed Products which can be used when you are placing a skillion roof off the side of an existing shed or garage. Instead of cutting and resheeting the side wall you can build your roof then apply the specially designed flashing and silicon sealant to achieve a sound weather tight extension.

The idea is that you nominate the two profiles of cladding that the flashing will meet, the wall and the roof. Make sure you Weather the top of the roof sheets where they butt the wall. When constructing you then position and fasten the flashing as appropriate. Once assembled you apply a liberal bead of quality silicon sealant to the top edge of the top seal which completes the job.

To order….. Select the pack size you require remembering that this is two piece flashing eg. a 24 piece pack will provide enough flashings to cover a 9.14m roof to wall seal. In the drop down boxes select the appropriate “Roof Profile” and “Wall Profile” and then nominate the colours required in the colour box. ALSO we can provide profiles for Corro, Monoclad, Spandek, Smartspan, Metrospan, Sureclad, Superdek, etc. If you have any questions before ordering, please send an email to

Find out how to install this product

Shipping Notice 
Shipping for these products nationally is $30 and will be added during checkout.
They travel by TOLL Road and their on-forwarders or occasionally with Australia Post.
Some locations may be deemed inaccessible by the freight network and will require collection from a regional depot.

  • Easy to fit
  • No need to cut wall sheeting
  • Flashings are sheet width for easy install
  • Colorbond or Zincalume
  • Use on barns, farm sheds, carports, annexes, patios, extensions
  • Use in place of traditional Apron Flashings when adding on to an existing building.


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