The underfloor heating pugging had to be put in some time ago, and in some places general foot traffic has cause errossion of the pugging where not enough cement was put in the pug mix. Like any building job, especially a self build, a number of people have been making up the mix, and some were not as accurate as others in estimating their shovel loads of sand and cement. Of course a proper builder will tell you the only correct way to get the amounts right is to use a gauge or batch box!
So we have had some repair work to do, and we have used some Unibond to help the repair work adhere to the material below and to strenghten the bits where cement is a bit under spec.
