The new booklet looks at how recycled organic material helps establish and prolong green roofs with nutrients and minerals.
"Quality Compost Use in Green Roof Construction is the first document of its kind," said the Government's Waste & Resources Action Programme (WRAP). "This gives a further boost to the rapid growth of green roofs across the UK."
BSI PAS 100 compost, made from recycled grass clippings, tree prunings and leaves, was packed with nitrogen, potassium and phosphate, said WRAP.
"Compost also has excellent water-retaining properties, which facilitate a key function of green roofs - better rainwater management," it added.
The booklet would interest councils such as Sheffield and Manchester, which aim to include green roofs in planning rules, said WRAP.
It comes before the publication of the first UK-specific green roof code of practice, being drawn up by the Sheffield Green Roof Centre.
The code will draw on experience from Germany, Switzerland and Austria and advise on planning, implementation, maintenance and use of materials.