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General: Internal wall finish on detached garage walls?

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    I've just received a quote from a well known builder's merchant based on my house plans and their estimation service. The plans include a detached a garage to be built from a single skin of medium dense concrete block with external render. The garage will be used for the typical stuff a garage is supposed to be used for, putting bikes, cars, tools etc. in. It might host a table-tennis table at some point but that's about it. We're excluded from converting it to habitable accommodation in the planning conditions.

    However, the quote includes materials for drylining and skimming the internal walls. We'd never imagined doing this - at best we thought they'd get a couple of coats of masonry paint.

    Is there any sane reason why anyone would want to dryline/plaster the internal walls of a garage?
    • CommentAuthortony
    • CommentTimeOct 16th 2012
     
    No!! (unless you were making a profit selling the materials or pushed the wrong button on the spreadsheet)
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    Plasterboarding a single skin garage could be disastrous, as the masonry often gets damp (sometimes saturated) at really wet times of the year. I'ts the openness of the blockwork which aides evaporation and drying
  4.  
    Posted By: Mike GeorgePlasterboarding a single skin garage could be disastrous, as the masonry often gets damp (sometimes saturated) at really wet times of the year. I'ts the openness of the blockwork which aides evaporation and drying


    The blockwork is externally protected using a waterproof render (finish to match the main house) so I don't think dampness will be an issue (I hope).

    Even so, I still can't think of any reason why we'd want to plasterboard it.....
    • CommentAuthorwookey
    • CommentTimeOct 16th 2012
     
    You might want to insulate it if you work in there so it's not competely freezing. Then some kind of robust wall-covering over the insulation makes sense. (I've got 100mm of PIR on my garage walls and in the door now, 50mm XPS under the floor and 150mm PIR in the roof, which I suppose makes it better insulated than most houses). And the walls are magnesium silicate boards (resistant multipro).
  6.  
    Posted By: wookeyYou might want to insulate it if you work in there so it's not competely freezing. Then some kind of robust wall-covering over the insulation makes sense. (I've got 100mm of PIR on my garage walls and in the door now, 50mm XPS under the floor and 150mm PIR in the roof, which I suppose makes it better insulated than most houses). And the walls are magnesium silicate boards (resistant multipro).


    The main house will be insulated with EWI and render. We plan to do the same on the garage, applying 60mm of EPS and then the same render as the house (probably a silicon render) to give the same finish throughout.
    We'll also put some insulation under the slab and in the roof (probably EPS, since the thickness isn't likely to be an issue and we're not going to live in it) to help protect it from extremes of temperature.

    The render will include mesh reinforcement and had better be waterproof otherwise we'll have major issues with the house.
    • CommentAuthoratomicbisf
    • CommentTimeOct 16th 2012
     
    Drylining the inside of a garage would be silly anyway as it would be liable to be damaged if you did any heavy work in there.
  8.  
    Posted By: atomicbisfDrylining the inside of a garage would be silly anyway as it would be liable to be damaged if you did any heavy work in there.


    Indeed, we'd never entertain the idea. I just wondered if there was some method to their madness that I couldn't see. Seems not!
    • CommentAuthornikhoward
    • CommentTimeOct 17th 2012
     
    Posted By: MarkBennett
    Posted By: atomicbisfDrylining the inside of a garage would be silly anyway as it would be liable to be damaged if you did any heavy work in there.


    Indeed, we'd never entertain the idea. I just wondered if there was some method to their madness that I couldn't see. Seems not!


    Their only method is to make money, use the cals they provide as a bench mark to beat. I have a trade a point with the other big one but only go there when I can't get what I want any where else, I get much better prices, as well as product and service from local idependants, also in the knowledge that the profits go to locals as well

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