sarking

noun sarkings

1. Australia, New Zealand, Scotland, uncountable, usually Wood, felt, or other material placed under the shingles of a roof or behind the outer leaf of a wall in order to provide support or insulation; the practice of furnishing a structure with such material; an installation of such material. Much housing work lies within this area, and to avoid high maintenance costs the Department is building many houses with plaster exteriors upon diagonal sarkings.