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Dry-lining old Victorian House.

  • 25-02-2018 9:21pm
    #1
    Registered Users, Registered Users 2 Posts: 154 ✭✭


    /Moved from DIY forum.
    I have an old Victorian red brick (pebbled dashed!) house which has no DPC and concrete floors downstairs.
    The original plaster is now literally falling off the walls so I have striped them back to the brick.
    After much reading, I am considering to go a similar approach as described in this blog.
    http://jack-kelly.com/insulating_our_victorian_living_room

    My plan would be to metal dry-lining system that allows for an air cavity of ~25mm.
    Additional air bricks would be added to the external wall to aid the circulation of air in the cavity with the outside to remove trapped moisture.
    On top of the metal dry-lining system I would add 50mm rigid insulation, vapour barrier and finally plasterboard.
    This should prevent any warm air coming in contact with the cold air from outside and condensing inside the wall somewhere .
    Any damp rising up through the brick would be allow to evaporate and exit through the air bricks.

    Other approaches I have read for old brick walls would be to use a lime plaster and some breathable insulation (sheeps wool).
    I think the dry-lined approach would be significantly easier, and less costlier. The metal system should also be a lot quicker than the wooden stud walls and not suffer from rot or warping.
    I would like to others opinion and whether they would have any suggestions or experience doing this? 

    The exterior pebble dash is also something which I think needs to come off since it is probably trapping moisture in the bricks.


Comments

  • Moderators, Home & Garden Moderators Posts: 10,146 Mod ✭✭✭✭BryanF


    IMO PIR insulation’s should be avoided in old buildings. Breathable solutions have come on a long ways from lime and sheeps wool. I’ll say no more.
    This is covered to death on boards.


  • Registered Users, Registered Users 2 Posts: 13,151 ✭✭✭✭Calahonda52


    Bryan
    This is a copy, not a /Moved from DIY forum.

    Maybe amalgamate

    “I can’t pay my staff or mortgage with instagram likes”.



  • Moderators, Home & Garden Moderators Posts: 10,146 Mod ✭✭✭✭BryanF


    Op please advise mods which thread you want left open thanks


This discussion has been closed.
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