D D DIYnotBot 24 Aug 2010 This image is referenced in the forum thread 'Conservatory roof, again....'
D D DIYnotBot 28 Nov 2010 This image is referenced in the forum thread 'Keeping heat in a conservatory'
D D DIYnotBot 17 Dec 2010 This image is referenced in the forum thread 'sick of bitumen - decisive help needed.'