An Integra Raised Kerb internal corner joins two kerb lengths at an inside right angle. The corner must bridge a controlled expansion gap without being rigidly glued on both sides.
Leave a 4mm gap, remove excess foam if necessary, glue one inside edge of the internal-corner component, activate the matching trim face and press the component in place until secure.
What you need
- Matching Integra Raised Kerb Internal Corner
- Suitable superglue
- uPVC superglue activator
- Scissors or craft knife only if excess foam must be removed
- Clean, dry and contamination-free trim surfaces
Five installation steps
- Set the corner. Butt the two raised-kerb lengths at the internal right angle with a 4mm expansion gap.
- Prepare the foam. Carefully remove any excess foam seal that obstructs the corner component.
- Glue one edge. Apply superglue to one inside edge only.
- Apply activator. Treat the corresponding raised-kerb area.
- Press and hold. Seat the internal corner firmly and hold until the bond is solid.
Shop raised kerb corners
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Frequently asked questions
What gap should be left?
The supplied guide states 4mm between the raised-kerb lengths.
When should excess foam be removed?
Only when it prevents the internal-corner component from seating correctly; cut carefully without damaging the required seal.
Why glue one side only?
It secures the corner while allowing thermal expansion and contraction at the joint.
Can I use an external corner internally?
No. Use the internal-corner component from the same trim family and colour.
Need project-specific help?
Forti Nova supplies the FlexiProof system with practical product support. Send your maximum roof dimensions, deck type and details such as upstands, outlets, rooflights and corners before ordering.
Ask Forti Nova for free product advice → Training and installation support →
This web guide is based on the supplied FlexiProof manufacturer literature. Follow the current instructions supplied with the product, observe safe working-at-height practice and obtain project-specific design or structural advice where required.