92.—(1) The works specified in a group repair scheme ( “scheme works”) must be works of the following descriptions.
(2) In the case of works to put in reasonable repair the exterior of the buildings to which the scheme relates, the works must be—
(a)works to the exterior of the buildings to which the scheme relates, or
(b)so far only as may be necessary to give satisfactory effect to such works, additional works to other parts of the buildings,
and must be such that on completion of the works the exterior of the buildings will be in reasonable repair.
(3) In the case of works to render the buildings to which the scheme relates structurally stable, the works must be—
(a)works to the structure or to the foundations of the buildings to which the scheme relates, or
(b)other works necessary to give satisfactory effect to such works,
and must be such that on completion of the works the buildings will be structurally stable.
(4) For the purposes of this Chapter the exterior of a building means—
(a)any part of the building which is exposed to the elements of wind and rain or otherwise faces into the open air (including, in particular, roofs, chimneys, walls, doors, windows, rainwater goods and external pipework), and
(b)the curtilage of the building, including any wall within the curtilage which is constructed as a retaining wall or otherwise to protect the structure of the building.
(5) In relation to works to the curtilage of a building the reference in paragraph (2)(b) to additional works to other parts of the building includes additional works on land outside the curtilage.
(6) For the purposes of this Chapter the exterior of a building shall not be regarded as in reasonable repair unless it is substantially free from rising or penetrating damp.