
1) Construction terminology
Found on
https://www.crosswordclues.com/clue/sarking

Sarking is a British English word with multiple meanings in roof construction: In current usage in Australia, sarking refers to a laminated aluminium foil layer (commonly described as RFL, or reflective foil laminate) that is installed on the roof trusses, beneath the battens, supporting a tile or metal deck roof. It acts as additional radiative a...
Found on
http://en.wikipedia.org/wiki/Sarking

• (n.) Thin boards for sheathing, as above the rafters, and under the shingles or slates, and for similar purposes.
Found on
http://thinkexist.com/dictionary/meaning/sarking/

Boards placed between the rafters and the roof (sometimes called the 'soffit').
Found on
http://www.encyclo.co.uk/local/20704

roofing boards to which slates etc are nailed. Nearly always used where slates are laid in diminishing courses.
Found on
http://www.encyclo.co.uk/local/20935

In Scottish slated roof construction, the timber boarding to which the slates are nailed.
Found on
http://www.encyclo.co.uk/local/20938
Sark'ing noun [ From
Sark shirt.]
(Carp.) Thin boards for sheathing, as above the rafters, and under the shingles or slates, and for similar purposes.
Found on
http://www.encyclo.co.uk/webster/S/17

Material laid on top of rafters to which tiles or slates are fixed.
Found on
https://www.encyclo.co.uk/local/20694

A material such as plywood applied to the upper surface of rafters on a roof to give a continuous panel support. A system that is used as standard in Scotland, but uncommon in England and Wales
Found on
https://www.encyclo.co.uk/local/20696

Boards placed between the rafters and the roof (sometimes called the 'soffit').
Found on
https://www.encyclo.co.uk/local/20697
No exact match found.