Concept: putting a vine, eg passion fruit, choko, etc over the garden shed to cool it in summer and make use of the vertical space for food production, plus it looks more appealing. Could even grow different vines at same time to add greater visual and food interest. Plus, Great book, apparently ;-). All you need to know about how to build your own little green roof on a shed or outbuilding.
Best4Garden No-Dig Recycled Lawn Edging Economy - Green 60mm - Easy installation with pegs supplied - Straight Shape, also can be shaped to any curves - Safe and flexible plastic edging - Creates a crisp defined separation - Can be used to edge turf, flower beds, brick paths, trees, Gravel, Bricks, Slate or any aggregates driveways and pathways - Available in range of packs sizes. (1, No extra nails) Best4garden http://www.amazon.co.uk/dp/B0119NLCFI/ref=cm_sw_r_pi_dp_wC5kwb17HC85K