The mast could easily be shortened to fit into a cupboard as once installed it doesn't go up and down but it takes the stresses rather than the thin roof aluminium.
We have had some strong winds and its been fine.
The plastic locking screw did crack so when it was replaced I started to just tighten it by hand but I have added a metal aerial clamp with wing nuts that gets a better grip on the pole (Maplins)
You just drill a 40mm hole in the roof with a hole saw using the template provided and I lined the side with a nice piece of boarding to take the screws and give more strength.
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