Katepal brings a material formerly only used by professionals, i.e. SBS modified bitumen, to private clients throughout its range of roofing shingles and all colour options. These shingle can be used for roof pitches between 12 and 90. With regards to installation we would recommend using the Katepal underlay. Properties Coverage: 3m2/pack. Warranty: 15 years. Application Shingles are ideal for outhouse buildings such as garages & sheds etc.