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Airtight Plaster to Quinlite Block

  • 08-09-2010 2:06pm
    #1
    msft
    Closed Accounts Posts: 11 ✭


    Can anyone help me - What is the right internal plaster finish to quinlite block for airtightness and the drying time?confused.gif


Comments

  • #2
    sydthebeat
    Subscribers Posts: 42,170 ✭✭✭✭sydthebeat


    msft wrote: »
    Can anyone help me - What is the right internal plaster finish to quinlite block for airtightness and the drying time?confused.gif

    regular gypsum plaster on scratch coat....

    allow about 1 day per mm


  • #3
    msft
    Closed Accounts Posts: 11 ✭msft


    Thanks sydthebeat,
    I heard that it dries too fast for the Quinlite. Is that just a myth do you think?


  • #4
    sydthebeat
    Subscribers Posts: 42,170 ✭✭✭✭sydthebeat


    to be honest i havent heard of any problem with it...

    i am not aware of any proprietary product that quinnlite recommend for their internal finish.

    "its dries too fast for quinnlite"... im not sure what you mean here, what issues are supposed to be reported?? is the theory that the quinnlite base draws moisture and therefore the plaster drys too quickly???

    maybe its a case that by use of the quinnlite the walls insulative properties are improved therefore the internal of these dwellings are warmer than in a trad block build??? if so maybe its the warmer internal that dries the plaster out too quickly.... this can be easily resolved by allowing adequate ventilation to teh rooms during teh drying period.... youd be surprised how many people do not leave windows open during teh drying period and then complain about warped timbers doors etc....


  • #5
    The Green
    Registered Users, Registered Users 2 Posts: 18 ✭The Green


    From their web page :

    RENDERING AND PLASTERING


    Internal
    1. Dampen blockwork with a fine water spray to reduce suction.
    2. Apply scud coat 1:2 sand/cement with waterproofer.
    3. Alternatively a proprietary bonding agent maybe used, e.g. Evobond, Unibond, or PVA bond .
    4. Scratch coat 1:6 sand/cement to a depth of 8-12mm.
    Dabs with dry lining plasterboard or dry lining insulated plasterboard can be used as an internal finish. Gypsm Bond or proprietary lightweight finishes are compatible with QUINN-lite Thermal Blockwork. Plastering should conform to BS 5492 1991 code of practice for internal plastering. A medium grain sized sand is ideal.


  • #6
    The Green
    Registered Users, Registered Users 2 Posts: 18 ✭The Green


    I think their ratios are wrong way round, should be 2:1 Sand/Cement and 6:1 Sand / Cement. You should give them a call to confirm.


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