In one aspect of a bottom indexing tile and support structure, a bottom indexing support structure may be engaged with a top portion of a pedestal. The bottom indexing support structure may be formed with a generally vertical spine having at least one rail extending outward from a distal end thereof and may also include one or more ridges extending upward in a direction parallel to the spine. The spine and rail(s) may be configured to secure one or more bottom indexing tiles, which tiles may be formed with a groove on at least one edge thereof, and wherein one or more rails may be positioned within the groove. The bottom indexing tile may be formed with one or more channels on a bottom surface thereof, wherein each channel may correspond with a ridge of the bottom indexing support structure.

In one aspect of a bottom indexing tile and support structure, a bottom indexing support structure may be engaged with a top portion of a pedestal. The bottom indexing support structure may be formed with a generally vertical spine having at least one rail extending outward from a distal end thereof and may also include one or more ridges extending upward in a direction parallel to the spine. The spine and rail(s) may be configured to secure one or more bottom indexing tiles, which tiles may be formed with a groove on at least one edge thereof, and wherein one or more rails may be positioned within the groove. The bottom indexing tile may be formed with one or more channels on a bottom surface thereof, wherein each channel may correspond with a ridge of the bottom indexing support structure.

A system and method of roofing. The present invention includes a fabric sheet having an upper surface and a lower surface. The upper surface includes one of a hook and loop fastener and the lower surface is configured to be attached to a roof decking. The present invention further includes a plurality of tiles each having an upper edge, a lower edge, a top surface, and a bottom surface. The other of the hook and loop fastener is attached to the bottom surface. The plurality of tiles are releasably attached to the upper surface of the fabric sheet via the hook and loop fasteners.

The invention relates to a construction foil (16), especially roof film, roofing foil, flat roof sheeting, fa-cade sheeting and/or vapor barrier and/or sub-roofing sheeting, especially underlayment and/or sarking sheeting, with a single- or multilayer layer structure (17). It is provided according to the invention that at least one moisture sensor (1) for detecting moisture is associated to the construction foil (16), that the moisture sensor (1) is designed as an active pick-up, and that the moisture sensor (1) comprises at least one electrode (18) and/or a humidity sensing element, and the electrode (18) and/or the humidity sensing element is in direct contact with a nonwoven layer (19).

An article comprising a water resistant underlayment portion is provided comprising a first non-woven fabric layer, a film layer, a first bituminous material layer, a second non-woven fabric layer, a woven fabric layer, and a second bituminous material layer.

Polymer compositions with reduce oxygen permeability are described. The polymer compositions may include one or more polyolefin polymers, and a nanoparticle filler. The nanoparticle filler represents about 2 wt. % to 5 wt. % of the weight of the polymer composition and reduce the oxygen permeability of the composition by about 20% or more. Also described are roofing systems that may include an insulation layer and a thermoplastic polyolefin layer made using the polymer compositions to protect the insulation layer from weather degradation.

A retrofit roofing system with a roof furring having a substantially flat top and L-shaped side with openings that correspond to the raised portions of the existing metal roof panels, at least two fasteners that penetrate the L-shaped side through the existing metal roof panels and into the at least one roof perlins, a layer of adhesive on the substantially flat top portion of the roof furring; and at least one new metal roof panel on top of the layer of adhesive. There is also a new roofing system at least two roof perlins having a bottom portion attached to a roof deck by fasteners and a top portion, a layer of adhesive attached to the top portion of the at least two roof perlins and a metal roofing panel on top of the layer of adhesive attached to the top portion of the at least two roof perlins.

A cover board for use in a roofing system includes a core formed from recycled material. The core has a first major surface and a second major surface. A foil coating including at least one layer of foil material overlies at least one of the first major surface and the second major surface. The foil coating is configured as a radiant barrier.

A cover board for use in a roofing system includes a core formed from recycled material. The core has a first major surface and a second major surface. A foil coating including at least one layer of foil material overlies at least one of the first major surface and the second major surface. The foil coating is configured as a radiant barrier.

Disclosed is a roofing underlayment providing mechanical and electrical connection for solar shingles that includes a water-impervious membrane adapted to be attached to a roof. The underlayment also includes a mechanical attachment member configured to mechanically attach a solar shingle to the roof, as well as an electrical conductor having an electrical first portion of which is embedded within the membrane, having an electrical second portion which is configured to electrically connect to a solar shingle, and having an electrical third portion which is configured to electrically connect to an electrical circuit. An air gap is provided that allows for air flow below the solar shingles. The air gap comprises a space between a bottom surface of the solar shingles and a bottom surface of the membrane.