Thanks guys, lesson learnt. The patch is indeed underneath the next layer, so shouldnt be under any undue stress. I have used rounded corners, so hopefully not an issue.
Its been 2 days since I applied the patch, so I have inflated the floor. The patch is holding nicely, no bubbling.
Thanks for all the help, it has been much appreciated and I would probably not had the confidence to tackle this without the encouragement.
Thanks again.
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