Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture·Page 23·5.10
Timber floor finish and timber fillets treatment
Timber floor finishes laid on concrete may incorporate a DPM. Timber fillets used as fixings in concrete must be treated with effective preservative unless located above the DPM.
A timber floor finish laid directly on concrete may be bedded in a material which may also serve as a DPM. Timber fillets laid in the concrete as a fixing for a floor finish should be treated with an effective preservative unless they are above the DPM. Some preservative treatments are described in BS 1282.
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