Cavity Wall Insulation & Damp Issues

[AJC]

Hello!

 

I'm slowly updating a property in Ireland which was built in 1976. Situated on the North-west Atlantic coast it is very rain and wind exposed. There are some areas that suggest damp ingress but could potentially also relate to the property being infrequently lived in and left unheated/unoccupied over winter months.

 

Is there any type of cavity wall insulation that can safely be considered in this context?

 

Thanks,

Anthony 

[TheMitchells]

Some good information here - 

https://www.ecomerchant.co.uk/news/a-guide-to-wall-insulation/?srsltid=AfmBOopYEZ0zPHIDv7V7AU-XHGBdyHnT9-3abVEqoQUjtf-xz6BzpHQ7

SOme of that may be of use.  

 

[Conor]

Get the heating on and see if it's condensation. If it is, cavity insulation will help with this.

[ADLIan]

if the house is too exposed, which sounds as though may be the case, any form of retrofit cavity wall insulation is probably not suitable and would not follow the design & installation guidance for these system. The problem is filling the cavity with any form of insulation increases the risk of wind riven rain penetration in very exposed areas. Find a reputable CWI company nearby and check with them - they should offer a full survey & design package and if too exposed advise you against CWI. External insulation may be your only option but probably needs the cavity insulating to avoid thermal bypass - Catch 22 situation!!