Air vapour securement closure for a membrane roofing system

Algae resistant roofing material

Algae-resistant roofing material and methods

Algicidal post treated roofing granules

Alternate/reduced scrim for single ply roofing membrane

Anchor assembly

Anchor attachment for a roof panel rib

Anchor bar for a roof membrane

Anchored roof seam and method for anchoring a seam to a roof

Anchoring bracket for a gutter cover

Anchoring equipment, in particular for roofs

Anchoring system for a roof panel system

Anti-streak cover for eavestrough

Apparatus and method for cutting holes in roofing sheet...

Apparatus and methodology for limiting ice build-up

Apparatus and system for preventing ice dam formation

Apparatus for applying shingles to a roof

Apparatus for applying wall covering and wall covering

Apparatus for attaching roofing membrane to a structure

Apparatus for dislodging and collecting materials