ongoing problem with damp in porch

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After several months of having a builder tell me he couldn't find anything wrong in the porch even tho I could smell it and telling him repeatedly that the problem is in the corner near the door below the membrane dpc where there is no skirting board I have given him his marching orders and asked for a refund as the only thing he could do was paint this area with damp seal??

Not a lot of use until the source of the problem has been sorted ?

I've heard from a workmate about 'tanking' the area below the dpc...would this work?

Got another builder coming next week to have a look and I will suggest this if it might work
 
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would a rubberised, bitumen based emulsion work if i gave the wall below the dpc a couple of coats?


has anyone used it before?
 
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i've had a second opinion and the guy said there is damp (he never tested the section of wall where i believe the problem to be) and reckons the majority of it is coming from next door but he wants £468 quid to sort it...

he wants to charge...

£15 to remove the skirting board
£255 to inject both the walls..i assume below the membrane dpc as he mentions nothing about removing the plaster before or replacing after
£120 to put a resin surface membrane on the floor

why he wants to do the floor i don't know...only had the floor replaced in november..the previous numpty who did it hadn't used a membrane :evil: and that was before we moved in


total score = 468 quid including VAT

does that sound right??
seems a bit high for such a small area?
 
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thanks for that..interesting reading :eek:


"Never use modern acrylic or emulsion paints - they are death to old walls - they are plastic - they trap moisture and cause damp!! "

what would be the best paint to use to allow the wall to breathe?
 
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thanks for that..interesting reading

"Never use modern acrylic or emulsion paints - they are death to old walls - they are plastic - they trap moisture and cause damp!! "

Not quite so interesting, more like inaccurate

How can paint trap water and cause damp? If the water is there already then there is already damp potential

That advice refers to old brick or stone buildings with lime mortar which need to breathe, and not a modern porch which has not been built properly
 
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thanks for that..interesting reading :eek:


"Never use modern acrylic or emulsion paints - they are death to old walls - they are plastic - they trap moisture and cause damp!! "

what would be the best paint to use to allow the wall to breathe?
I put the link for you to understand regarding the chemical treatments problems

Best to ask on paint forum for advice
 

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