Damp poof course problems

[Iaindhill]

Whilst running in a new soil pipe, unfortunatelly a brick "came away" taking with it the damp poof course, the old tar based type. Obviously i do not want to breach the DPC by just bricking back in, but what is the best way to repair it. Should i lay some new "tar paper" type course and channel into the mortar under the 2 old adjoining bricks so i can get a consistant shield, and if i am using a new style one should i mortar each side of the membrane, if so can this affect the integrity of the shield where mortar and the old tar come into contact? or should i not get too hung up about the perfect bridge?


Any help would be appreciated

iain

 

[TexMex]

You don't have to match the type. Any modern DPC will do the job. You should definately strive for the 4" overlap, each side, though.

Carefully does it

 

[Iaindhill]

Thanks for the advice Texmex, i suppose 4 inches gives you a good enough amount of overlap to stop any ingress of moisture

Cheers

iain