Some especially weaker dimensioned roofs need solutions, which have a reduced weight than roofs made of tiles or slate. For these cases as well as for matters of design and shape roofing materials like metal or asphalt shingles can be used as roof covering. Another fact is the lower necessary roof pitch
, which often is below the classic deck materials.
Similar to slate both materials are fixed to a boarding fixed on the rafters. Additionally there are solutions that come out with a lathing.