SYSTEM FOR ATTACHING SHINGLES TO A ROOF

The present disclosure discloses roof systems having a roof deck, a plurality of shingles, and a plurality of fasteners, having a material that partially changes state and displaces into the roof deck material to secure the fasteners and shingles to the roof deck. The shingles can be positioned in an overlapping, and the fasteners can have first portions configured to penetrate into the roof deck and can have at least one material that melts at a threshold temperature. The first portions of the fasteners extend through one or more shingles and penetrate into the roof deck, where the material of the first portion of the fasteners increases in temperature above the threshold temperature, partially changing into a more flowable state, and displaces into voids in the material of the roof deck. Second portions of the fasteners engage the upper surfaces of the shingles to secure the shingles to the roof deck. The present disclosure includes a method for attaching a shingle to a roof deck by positioning the shingle above the roof deck, positioning a first portion of a fastener above an upper surface of the shingle, applying a force to the fastener such that the first portion penetrates through the shingle and into the roof deck where a material of the first portion melts and displaces into voids in a material of the roof deck, and engaging the upper surface of a shingle with a second portion of the fastener to attach the shingle to the roof deck.