25 Cornwall Road London SE1 8TW
Renovation of existing welsh slate covering to butterfly (W) roof, involving temporary removal of existing welsh slates, removal of battens, laying of rock-wool insulation between and over ceiling joists, laying of new felt over rafters, replacement of two bitumen felt roof gulleys in lead, re-laying of as many slates as can be recovered, laying of new or recovered welsh slates, new lead flashings, soakers and central ridge to replace badly cracked cement flashings and old lead ridge.