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Green Building Bible, Fourth Edition
Green Building Bible, fourth edition (both books)
These two books are the perfect starting place to help you get to grips with one of the most vitally important aspects of our society - our homes and living environment.

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    • CommentAuthorCWatters
    • CommentTime6 days ago edited
     
    Just curious to know if anyone here has built a house using brick slips? For example with a wall make up like..

    Brick slips - insulation - block inner leaf
    or
    Brick slips - insulated concrete formwork (ICF)

    It seems to me this would have the potential to include a lot more insulation than with traditional brick-cavity-insulation block.

    The Belgian company Vandersanden says brick slips are 20% more expensive than regular bricks but the way they are fixed to special insulation looks a lot easier than laying bricks. Potentially making the outer skin a DIY job, or DIY with professional pointing?

    https://www.vandersandengroup.co.uk/eboard/en-gb#doityourself

    I've no links with this company.
    • CommentAuthorbhommels
    • CommentTime6 days ago edited
     
    Glad you started this topic! I am considering brick slips on top of 200mm EWI for the front of the house. It would make it look very similar to the row of semis we are in, which is good as it would do away with the need for planning application (or so the council officer assured me).
    The vandersanden solution looks very much like what alumasc offer. The downside is that you are tied to their grooved insulation boards. As I already have the EPS boards (thanks to a generous forum member :-) I am considering the Weatherby system where a ridged metal mesh is pinned on top of the EPS, with additional fixings into the wall. To me this looks like a more robust solution for carrying the weight of the brick slips, and the ridges ensure nicely aligned and spaced bricks.
    After receiving a few samples I am even considering acrylic brick slips as these look good at much less weight.

    Any suggestions as to what brick slip systems people have used on top of 200mm EPS, and are quicker to install than aligning the slips individually are veryveryvery welcome.
    •  
      CommentAuthorfostertom
    • CommentTime6 days ago
     
    There's also systems to make the bricks out of the render, by cutting through the half-set top coat to remove strips of it to reveal the grey base coat as recessed mortar joints
    https://www.permarock.com/ewi-for-existing-buildings/decorative-renders-finishes-effects/permarock-brick-effect-render
    or another way to remove strips of the topcoat, by rendering over a flexible template which is pulled off
    https://www.dryvit.co.uk/images/speciality-finish-promo-sheets/brick-promo-sheet.pdf
    • CommentAuthorHollyBush
    • CommentTime6 days ago
     
    Have a look at Monolith, who have a few options for brick slip type products, with insulation and with panels for 12 in one piece, saving on some installation costs.

    I have no connection and went for a relatively standard build in the end (fulfil cavity, with bricks on the outside)
    • CommentAuthorCWatters
    • CommentTime6 days ago edited
     
    Posted By: bhommelsGlad you started this topic! I am considering brick slips on top of 200mm EWI for the front of the house.


    Over in Belgium they have tax incentives which seems to encourage people to buy older houses and improve them. Using EWI and brick slips seems to be popular but not see it over here.
    • CommentAuthortony
    • CommentTime6 days ago
     
    We did one wall of an old extension, formed insulation with ridges, pistol slips for the external corners worked well and difficult to tell ir is not real brickwork

    I have seen commercial systems on flats recently too
  1.  
    We used the Wetherby system for a brick plinth wall. Very easy to use and everyone so far has thought it was brick.
      Brick Slips2 small.jpg
    •  
      CommentAuthorfostertom
    • CommentTime6 days ago
     
    Yes, that does look good.

    If only someone could provide a similar system looking like really-random-rubble stone! i.e. huge variation in stones and undetectable course/modules.
    • CommentAuthorCWatters
    • CommentTime6 days ago edited
     
    Posted By: fostertom
    If only someone could provide a similar system looking like really-random-rubble stone! i.e. huge variation in stones and undetectable course/modules.


    Nearest I can find is..

    https://www.lbsproducts.com/natural-stone-products/z-stone/granite-z-stone

    Doesn't look too bad in the examples.

    Edit: This one looks nice..

    https://www.lbsproducts.com/natural-stone-products/z-stone/quartz-z-stone
    •  
      CommentAuthorfostertom
    • CommentTime5 days ago
     
    Yes, not bad. But 40mm thick, inevitably for such high-relief surfaces. 65kg/m2.

    "Supporting Structure:
    Standard block cavity wall. If on timber frame, the wall should first be clad with a cement-based board.
    Z-Stone should not be fixed directly onto timber, plasterboard or painted surfaces"

    So with EWI of significant thickness, over say 50mm, wd have to be treated like other claddings like boarding (other than direct render or direct-fixed brick slips). The whole cladding on backing board would have to be suspended from above, from overhanging rafter ends or similar.
    That is, can't rely on fixing the backing board by cantilever action of lots of screws through anything more than thin EWI.

    But all in all, subject to inspection of finished jobs - a great possibility of using stone with EWI, which up till now has seemed to necessitate founds and base walls for 150-200mm of stone plus perhaps a blockwork backing - at great cost.
    • CommentAuthorbhommels
    • CommentTime5 days ago
     
    Posted By: PeterStarckWe used the Wetherby system for a brick plinth wall. Very easy to use and everyone so far has thought it was brick.

    That does look good indeed, thanks for posting the picture. And since Weatherby assured me they have fixings compatible with 200mm thick EWI I think I just made a decision. Did you install it yourself BTW?
    Are these the Weatherby supplied slips or from another supplier?
  2.  
    Posted By: bhommelsThat does look good indeed, thanks for posting the picture. And since Weatherby assured me they have fixings compatible with 200mm thick EWI I think I just made a decision. Did you install it yourself BTW?
    Are these the Weatherby supplied slips or from another supplier?


    Yes, I fitted Bluclad board, which was one they recommended, and then used all their fittings and slips including adhesive and grout/mortar. It's like tiling but the mesh keeps the slips in place.
  3.  
    Posted By: CWatters
    Posted By: fostertom
    If only someone could provide a similar system looking like really-random-rubble stone! i.e. huge variation in stones and undetectable course/modules.


    Nearest I can find is..

    https://www.lbsproducts.com/natural-stone-products/z-stone/granite-z-stone

    Doesn't look too bad in the examples.

    Edit: This one looks nice..

    https://www.lbsproducts.com/natural-stone-products/z-stone/quartz-z-stone


    These look great. I have a garden wall with their name written on it. Any idea of the cost per m2?
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