Is wall plate under floor joists needed?


Postby slawek » Sun Sep 26, 2010 11:42 pm

Hi,

I found some rotten joists under the ground floor and these need replacing (they are dry now). The wood wall plate (15mm thick, 100mm wide) was also rotten so was removed too.

Do I need to install new wall plate? I see it as potential problem for future rot even if wall plate will be treated which then transfer to joists (I will treat rising damp but damp is always a worry).

Is is good practise to install just DPC on brickwork and then support joist ends on slates which will sit on DPC? If I need wall plate - how to install it? Just to bed it in mortar and keep levl?

Thanks
slawek
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Joined: Sun Sep 26, 2010 11:35 pm

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Postby welsh brickie » Mon Sep 27, 2010 2:05 pm

You dont have to use wall plate,but dpc and the pack up the joist with tiles or cut concrete slabs,I would suggest wrapping the ends of the joists with dpc to prevent any rot though.
welsh brickie
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Joined: Sat Apr 12, 2008 7:54 am


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