Its Important To Be Able To Wipe Down The Roof Lining, so fabrics are a no go.
The Plastic 2.5mm board is perfect, it comes in 8'X4' sheets.

http://www.leicesterbuildingplastics....

Links to parts and tools used.

3m Double sided tape £12 per roll https://amzn.to/3CenD1r

Makita dust extractor hoover https://amzn.to/3QbEgPC

Mini circular saw https://amzn.to/3R9MKqL

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