I have fitted twin stainless steel flue pipe though the roof before so no problem there, because of building regs the flue pipe have to be over 2m high which mean I have to fit the universal roof brace kit which is 2 telescoping tubular legs which have a L-shape bracket to fix onto the roof rafters, what the best way of doing this regarding flashing around the very small tubing? The roof is marley ludlow tiles and about 22 degree pitch. I was thinking of a thin flat bar underneath the tiles onto the rafters extended out to fix the brackets? Is that the correct way or any better idea?
