Flexible top layer and roofing membrane or shingle...
Floor drain plate assembly
Flow control mechanism for an eaves trough downspout
Fluid applicator and support tray for roofing
Foldable braced platform for mounting onto the ridge of a roof
Folded ridge cover and method of fabrication
Freeze-resistant downspout system
Frost barrier for skylights and the like
Funnel style rainwater diverter
Garden cover retainer or concrete cover retainer
Gasket seal
Geo-synthetic composite insulation for roofing
Glacier snow guard
Glass block panels and method of fabrication thereof
Glass fiber reinforced gypsum building components
Glazed roof construction
Glazed roofs
Glazed structural system and components therefor
Glazing bar end cap
Glazing bar system