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Posted by DK on February 11, 2007, 2:28 pm
wrote:
>wrote:
>
>> We would need to know whether this is a concrete slab house, a
>> basement, or a crawl space.
>>
>> It sounds like some type of underlayment was used. Plywood sheets
>> are 4'x8'. Underlayment would usually indicate that the floor had
>> been retiled. There is a chance that the original flooring was
>> laid over 1 1/8" decking and the joints are telegraphing, but
>> would not explain a 4x4 pattern.
>>
>> The sky is probably not falling, but age is showing.
>
>This floor is in the kitchen on the top floor of a raised ranch with
>living space (bedroom & bathroom) underneath.
>
>Does that change your thoughts?
>
>Thanks again!!
You need to worry about moisture. Moisture causes swelling of the
subfloor.
Spend the extra time and money to put in a completely new subfloor
before you tile. During the process, look for water leaks.
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