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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.

PLEASE NOTE: A download link for Volume 1 will be sent to you by email and Volume 2 will be sent to you by post as a book.
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Products: Sealant CT1

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    • CommentAuthorPugliese
    • CommentTimeAug 26th 2013
     
    Looking for white sealant recommendations.

    Using it externally to seal up window/reveal joins. After white and has to be over paintable. Don't want anything that will shrink and something easy to apply. Have found that CT1 is excellent washed in with some spirit but it is sooooo expensive.

    Can anyone recommend a more affordable alternative or perhaps know of somewhere I can buy CT1 at a good price. I reckon I will need at least a dozen tubes.

    Thanks :smile:
    • CommentAuthorCerisy
    • CommentTimeAug 26th 2013
     
    I'm using Tremco Illbruck SP525. The 600ml tubes come in white and I'm using it to seal between the timber reveals and the aluminium cladding to the timber windows / doors. Takes paint well and looks a really good product.
    • CommentAuthorPugliese
    • CommentTimeAug 26th 2013 edited
     
    Hi Cerisy.

    Looks very interesting. See it comes direct from Tremco - how much?

    Also interested in your cladding - Aluminium? or are you referring to the aluminium box sections used to finish the edges on cladding?

    P.S. Just read the data sheet and no mention of overpainting. Did you check with Tremco?
    • CommentAuthorCerisy
    • CommentTimeAug 26th 2013
     
    The last lot, delivered to a friendly client coming to our Gite next Saturday, cost £111.89 for a box of 20 x 600 ml white SP525, including delivery. I'll probably order a couple more boxes for the interior works.

    I didn't specifically check about painting, but interpreted the spec sheet and, so far, the water based timber opaque stains we are using are okay. Do chat to the guys in Washington - 0191 419 0505 - very helpful and knowledgeable. My alternative - white silicone - was giving me concerns with overpainting and filing variable gaps.

    Our cladding is heat treated pine. The timber windows from SKAALA come with an aluminium facing on the exterior. We are using the cladding, cut down as required, to finish around the windows and corners. The photos on Facebook show the finish ... https://www.facebook.com/media/set/?set=a.10151216164925102.469650.738365101&type=1&l=0bb42bf18c

    Regards, Jonathan
    • CommentAuthorPugliese
    • CommentTimeAug 26th 2013
     
    Great pictures, brought back a lot of memories and glad to see someone else building through last winter.

    Went for a simpler route with the cladding using the Marley Eternit system. The problem is that with that system they suggest using the cladding for the exterior window reveals, which with the textured board IMO would spoil the New England look. For continuity we tried using a similar board, Marley Operal, which comes with a smooth finish, but at £180 a board - ouch! Also it was a bugger to cut and get a close fit, so we tried using a shadow line approach, but don't like the finish. So on the few windows I have used Operal we will seal up the gap and on the remaining reveals will go the timber route, paint, seal and paint again. Attached is a pic.

    How thick is the cladding used for the window reveals?
    • CommentAuthorCerisy
    • CommentTimeAug 26th 2013
     
    20 mm thick. We have worked the shadow line gaps down each corner and window / door opening to both make it easier to fit the cladding (no need for spot on accuracy!) and to ensure that any water drains away. If you try and bring two pieces of wood together in that situation, all you end up doing is holding water between them - with all the issues that brings. The batten behind the gaps has been painted of course!!

    Back to insulating the frame - upstairs finished - so at least as we work through next winter it will be a little easier!
    • CommentAuthorPugliese
    • CommentTimeAug 28th 2013
     
    Hi Jonathan

    Just to say that I have ordered the SP525 - Guys at Washington very helpful and in fact they are coming down to visit to look at the window detail, mind you the lure of advertising their product as the whole build has been filmed by C4 probably helped! .... and yes you can overpaint it, but of course the paint has to be able to cope with the flexibility.

    Also ordered their ME500 flexible window membrane tape to do a belt and braces job on the reveals.

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