A
Anonymous
Guest
Stone built property with 18 inch walls. House has been extensively destoyed by the previous owners with the introduction of modern materials. The whole of the ground floor has been replastered with cementitious materials in an obvious attempt to control damp. We have established that the damp problem related to very high external ground levels of concrete built up over many years and probably also to the introduction of cement render externally. Dry lining in one room in particular- now removed, showed decay and also the floor had decayed entirely. The house has an existing bitumous damp course and external ground levels were some 6 inches above this.
After 6 months of researching a subject that I previously knew nothing about I have concluded that accepted good practice would be the complete removoval of all cementitious materials both internally and externally and replastering with lime plaster to restore breathability, this would involve a massive undertaking and some walls are showing no signs of deterioration. my questions are thus : Is It acceptable to replaster with lime plaster to the base of walls only, to assist in evaporation. Is it acceptable to only replaster where efflorescence is evident.
Is it possible to render wall bases externally to provide evaporation. Is the present use of cement plaster causing ground floor joists in contact to decay. Are there any breathable alternatives to lime which work
e.g Limlite or renovating plasters. Not able to find any companys within 70 miles.
Remaining lime plastered rooms have painted wallpaper over them- should this be removed.
How do I not bridge the existing bitumous damp coarse when rendering the house. Ground level now 1ft below. A concrete floor has been added to one small area and wood in contact at its perimeter is decaying- whats the solution
After 6 months of researching a subject that I previously knew nothing about I have concluded that accepted good practice would be the complete removoval of all cementitious materials both internally and externally and replastering with lime plaster to restore breathability, this would involve a massive undertaking and some walls are showing no signs of deterioration. my questions are thus : Is It acceptable to replaster with lime plaster to the base of walls only, to assist in evaporation. Is it acceptable to only replaster where efflorescence is evident.
Is it possible to render wall bases externally to provide evaporation. Is the present use of cement plaster causing ground floor joists in contact to decay. Are there any breathable alternatives to lime which work
e.g Limlite or renovating plasters. Not able to find any companys within 70 miles.
Remaining lime plastered rooms have painted wallpaper over them- should this be removed.
How do I not bridge the existing bitumous damp coarse when rendering the house. Ground level now 1ft below. A concrete floor has been added to one small area and wood in contact at its perimeter is decaying- whats the solution