Paragraph 2
All problems which affect the functioning of an improvement and which—
(a)
relate to its installation, materials or design; and
(b)
are notified to the green deal provider—
(i)
subject to paragraph (ii), within five years of the improvement being installed;
(ii)
where the improvement is solid wall insulation or cavity wall insulation, within 25 years of the improvement being installed,
must be rectified by the green deal provider free of charge.