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should bottom of plaster board spot and dab wall be sealed?

steveatpipex's Avatar

Join Date: Oct 2006
Posts: 1

10-01-06, 12:16 PM   #1  
should bottom of plaster board spot and dab wall be sealed?

My son has a house which was new 20 month ago. Its standard brick construction with the usual "spot and dab" interior plaster board finish. Sadly his ground floor was flooded and new Laminate flooring is going in this week.

We took the skirting boards off and saw that the plaster boards all stop about 1 to 2 inches from the concrete floor. The gap is not sealed in any way shape or form.

My question is this - should this gap have been sealed by the builders during construction? Should I fill it now, maybe with that expanding foam stuff or is there some technical reason that the gap has been left there?

Cheers in advance.

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marksr's Avatar
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Join Date: Mar 2005
Posts: 42,811

10-02-06, 05:58 AM   #2  
Welcome to the forums

Drywall is typically installed a 1/2" or so off of the floor. This prevents the drywall from wicking up any moisture during mopping or any minor liquid spills.

Has the drywall dried well from the flooding? Was it checked out to make sure there was no mold growth from the wet conditions?

retired painter/contractor avid DIYer

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