Shed felt can be used to roof sheds, garden buildings and outbuildings too, all of which depend on a weatherproof and waterproof finish to be usable. shed roof felt comes in torch-on bitumen and self-adhesive bitumen from manufacturers like iko and icopal. these companies are known for quality, dependability, and a great finish every time.. How to attach roof felt on a shed. in this article: cutting your felt pieces cleaning and preparing your roof attaching your roof felt community q&a 11 references roof felt, also known as tar paper, is a waterproof fiberglass product. it is used for temporary roofing, for weatherproofing, and as an underlayment under shingles or other permanent roofing materials.. 1-16 of 318 results for "shed roofing felt" premium 10m shed felt - green (free nails and adhesive) by ashbrook roofing.