My work comes in from website,being local ( around here very few invest in having a van - never mind sign writing ) for personal reccomendations
My concern was that this roof is old, and heavily mossed - from my experience it's a real pig to remove without cranking up the power this I felt could lead to further damage to the tiles - you can see in one picture a huge clump of grass - the bleach was applied in an attempt to kill the moss and "shrivel" it to aid removal, it pretty much had that effect
Darran