Abstract: A sealing fastening member has a main body that in turn has a central bore for receiving a fastener, a bottom contact surface, and a protruding portion protruding from the bottom contact surface. Initially, the fastener extends through the central bore and at least partially into an underlying surface; the protruding portion is in contact with the underlying surface. The bottom contact surface is thereby being at a distance from the underlying surface. The protruding portion then at least partially liquifies under the force of an installation action carried out on the fastener and seals around a point of penetration of the underlying surface by the fastener. During a second phase, the bottom contact surface is in contact with the underlying surface and the fastener is secured in the underlying surface.

Abstract: Battens for mounting on a building surface such as a roof are connected by bendable, lengthwise substantially inelastic connecting members, the length of each connecting member between adjacent pairs of the battens having a predetermined length corresponding to a predetermined batten separation. When deployed on the building surface, the batten separations and thus positions of the battens relative to each other are maintained substantially constant by the connecting members. When stowed, however, the battens lie against or immediately adjacent to each other with the connecting members extending outward from between adjacent ones of the battens. A user may deploy the batten arrangement for mounting by laying it in the stowed configuration on the building surface and pulling it into the deployed configuration.