DIY Doctor

Lowering Raised Floor in old Jacuzzi Room

Postby prosonman » Sun Jul 31, 2016 9:02 pm

The house I have had an extension to the utility room for a Jacuzzi. The Jacuzzi has long since been remove and boarded over. I would like to lower the floor to match the utility room to make one large utility room or second kitchen.

The floor joists are currently 2 foot above the DPC and I would like to know if I can lower them so they sit on top of the DPC? If this can be done, would you recommend attaching the joists to the wall with hangers or should I make hole in the block work? The height of the joists when lowered will by 1 brick height from the concrete base.

There are no air bricks, is this likely to be a problem as I was hoping to insulate between the joists when there lowered?

Attached is a picture if it helps.

Image 2.jpg
Image 1.jpg
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Postby welsh brickie » Tue Aug 02, 2016 7:44 pm

I would remove the joists all together, insulate and concrete the floor to the desired height. Joists need air to circulate so moisture does not rot the floor
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Postby spencermoseley » Thu Nov 17, 2016 9:13 am

welsh brickie, you are right.
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Postby spencermoseley » Sun Nov 20, 2016 11:54 am

How much you spent?
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