In this manner, you will get a rigid structure and a sturdy garden shed. you should study the building codes before starting the construction of the roof. there are certain cases in which you need to choose a certain slope for your roof, so make sure you are aware of the legal requirements, before starting the actual construction.. Shed roof design plans. crane garden buildings � garden shed plans. houzz � yard and garden shed plans. green roof training � green roof guides. eco-shed � eco-friendly garden shed roof. red rose forest � pitched shed roof design. shed for easy � how to build a shed roof over a door. shed made easy � single pitch roof shed plans.. This step by step diy woodworking project is about how to build a roof for a 4