alluminiam soakers used for flashing on roof of boilerhouse to wall of extension to house.

Once again, Flashband.

I think a few pictures would save 1,000 words and be a lot clearer...

Bung 'em up on tinypic and post direct links to the image files.

rs ago. The roof is slanted from the roof of the main house which is a hip roof. on the side of the extension wall is a boilerhouse attached. Water ha s been coming off the new roof on to the boilerhouse causing dampness in th e boilerhouse and now this wet has seeped into my dining from. The builder did not put lead flashing on the boilerhouse roof where it meets the extens ion wall at the time he fitted the new roof. I now have external insulation on the walls of the house so I cant use lead flashing. I wonder if allumin iam soakers could be used for flashing. My builder has suggested putting fe lt on the boilerhouse roof and suggests it is the boilerhouse roof is the c ause of the damage not the water coming from new roof. Until i got new roof I had no problem with the boilerhouse or dining room. I would be grateful for advice .

Builders doing roofing work again. What type of tiles or slate is on the ro of? Photo would help to give a verdict