LiamJones Posted June 15 Share Posted June 15 Structural engineer suggested Rawlplug FF1 10mm screws. Now fixing to the medium density 7.3n blocks at the threshold, and it’s cracked the block! Any suggestion? Link to comment Share on other sites More sharing options...
Conor Posted June 15 Share Posted June 15 Can we see your full threshold detail please? Normally the compact form would sit on top of the block, replacing the traditional concrete. Link to comment Share on other sites More sharing options...
LiamJones Posted June 15 Author Share Posted June 15 It’s this with the 4x2 swapped for 100x50 compacfoam Link to comment Share on other sites More sharing options...
Mr Punter Posted June 15 Share Posted June 15 Resin fixings would be better as they don't expand. Clean the holes thoroughly before you resin. Link to comment Share on other sites More sharing options...
LiamJones Posted June 15 Author Share Posted June 15 Ah yes, good idea! I did suggest resin to the SE in the first instance, because that’s how I fixed my ledger boards. Thanks! Link to comment Share on other sites More sharing options...
Russell griffiths Posted June 16 Share Posted June 16 I think you need to stop and start a new thread on how to fix everything there. in your original post it was pointed out the poor design and cold bridge, as I thought you had already built this I didn’t bother pushing it. now seeing that picture it shows the cold bridge is still there and you are in a position to fix it. and being that the block has just cracked it will give you chance to fix that bit as well your door needs to sit on a layer of some form of insulation, you then need insulation up the front insulating the front and leaving the doors sitting on that block work you are asking to have a drippy wet internal cill. take a wider angle picture or a drawing showing your external insulation added. Link to comment Share on other sites More sharing options...
Mattg4321 Posted June 16 Share Posted June 16 I’m not saying this is right, but attached are the drawing I was sent by door company and what I’ve actually done. Their method wasn’t going to work for me as I’ve got block and beam floor, so there is no inner leaf where the doors are. Link to comment Share on other sites More sharing options...
LiamJones Posted June 16 Author Share Posted June 16 8 hours ago, Russell griffiths said: take a wider angle picture or a drawing showing your external insulation added. that’s all I’ve got to hand this evening Link to comment Share on other sites More sharing options...
LiamJones Posted June 16 Author Share Posted June 16 On 15/06/2024 at 11:48, Mr Punter said: Resin fixings would be better as they don't expand. Clean the holes thoroughly before you resin. The resin fixings worked a dream, thank you! Link to comment Share on other sites More sharing options...
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