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Air tightness renovation

  • 21-12-2016 8:15pm
    #1
    Shefwedfan
    Closed Accounts Posts: 18,958 ✭✭✭✭


    Ok, so renovating house, keeping existing double glazed windows. I am going to insulate slab all exterior walls. Majority of work been done by myself & brother/friends.

    We are going to try and do air tightness where possible. Looking at the windows to start with. Found the following website but no idea which tape I should be buying: snip

    Any idea's?


Comments

  • #2
    ht9zni1gs28crp
    Closed Accounts Posts: 1,011 ✭✭✭ht9zni1gs28crp


    Plenty of tapes out there on the market, all which should do the job just fine.

    Out of interest did you start with a Blower test before renovation started? It would give you a brilliant guide on how well you have done with the work.

    Are you departing from traditional ventilation into say a decentralised HRV system?


  • #3
    Shefwedfan
    Closed Accounts Posts: 18,958 ✭✭✭✭Shefwedfan


    Hi, didnt start with blower test, the house had dry rot so I stripped it down to base bones ASAP to stop spread.

    Long term plan would be to include a HRV system. The house is 3,000 sq ft. I am renovating over half of the house. The other half was built in early 2000 and was not affected. I want to complete this section and then once complete I can look towards the rest of the house.

    In the section I am doing up, I have removed all floors, dug down and put in new DPM, 100MM insulation and new floors. Put down all new piping system for radiators etc with insulated pipes. The older pipes had loads of leaks which was feeding the Dry rot.

    I have pumped cavity and now putting insulated slabs on exterior walls and ceilings. House is bungalow. I am going to use air tightness tape on windows. Just wondering now should I tape all the slab joints as well.


  • #4
    ht9zni1gs28crp
    Closed Accounts Posts: 1,011 ✭✭✭ht9zni1gs28crp


    Yes, tape everything you can now that is exposed, you wont regret it and when a HRV does come into play it operation will be hell of a lot more efficient.

    So tape between your exposed slab to the walls under the plaster line. Special harder tape is available for this joint with adhesive and remember to leave it slightly loose for movement etc.

    Also look at your eaves/ceiling/floor junction detail and how to airtight that, for the sake of a few rolls of membrane if your slabbing the ceilings from new id put the membrane in. Deal with attic doors sealing at a later date.


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