The roof timbers to which felt and battens are fixed. 

Stone walls consisting of an outer and inner skin of stone, usually dressed on one face only. The space between the skins is filled with construction rubble. From time to time, ‘through’ stones are placed across the wall to provide structural stability.  It is virtually impossible to fit an effective chemical dpc in walls of this type.
 

A set-back in timber, stone, etc. 

The first coat in plastering or general term for most finishes applied to external wall surfaces, may be smooth or rough cast. 

A wall built to hold back or retain a bank of soil. 

The top of the roof where two slopes meet. 

A shaped tile placed along the ridge. 

A felt used for covering roofs before laying battens. 

A rough render finish to external walls, usually made with gravel. 

Rolled steel joist used for supporting upper load-bearing walls above wide opening.