I need a concise answer for this one, preferably before the mrs leaves the vicinity of B&Q / Wickes in about 30 mins !
can I use roofing bitumen as a continuation of a pitchmastic DPM which I've been forced to expose in order to build a step between a kitchen and a utility room, 300mm below the level of the kitchen floor ?
does bitumen dry hard to fix to with tile adhesive ??
the utility room and kitchen both have plastic DPM under concrete and both are finished in pitchmastic. it's just the bit between the two that I need to proof.
2 courses deep by 2 - 3 foot long.thanks for any tips.