Cold Frame on a garage roof
I'm thinking of making a cold frame to sit on the garage roof, which I can use to get seeds started.
Why the roof? well it gets plenty of sunshine. I could stand on a raised planter behind the garage and comfortably reach into a cold frame, and it doesn't entrude on an already fairly small garden.
It's a flat roof made up of GRP over timber by the way.
Can you see any issue with doing this?
I did wonder about the roof being cold, maybe sitting the seed trays on polystyrene sheet would help? To insulate them a little.
I've never planted seed trays or used a cold frame before either .