Water, water everywhere (again!)

[mickeych]

With all the rain we have had over the last few days there seems to be a lot of water on our site (again!) Glazing is mostly in and we are insulating the warm roof and floor before adding the DPM and screed. I'm interested in some thoughts on where we are seeing damp appear and how we best deal with it:

 

There seems to be a lot of water on top of the waterproof membrane we have in place (the building has been tanked) - Waterproofing company suggests that this is condensation and have pointed out that we have no water under the membrane so it has to be coming from above. The Builder, (reliable and very capable) also independently suggested condensation although there does appear to be a lot. There does appear to be condensation on the backside of the Cellatex, but the water is only on 1 side of the building which if it is condensation is strange. Am I missing something? What do others think?

 

We also seem to have ingress between the natural stone gable end of the original old barn and the new stone roof of the attached rebuilt stone byre which makes up our kitchen and utility. The builder reckons that the water is tracking down through the lime mortar joints and running down the internal wall between the old and new. His solution is to seal up the stone and mortar with a sealant that will need to be reapplied every few years... This doesn't seem like a great plan, but are what do others think and what are the options on something like this?

 

[nod]

Your right to be concerned 

It could well be condensation 

Weve three days of dry weather now 

I’d get some heat in and dry it out 

Then you can see what you are looking at I very small leak can look much worse 

These things are easy to get to the bottom of when you are at this stage 

 

Sealing the stonework between the two buildings Wouldn’t be permanent enough for me There must be another option Tray Sika pointing etc