How big a gap to termites need to get through a crack in a slab? Will the slab in your home crack enough to let termites in?
When poured correctly, a concrete slab makes an excellent Termite Barrier. The Cement Concrete & Aggregates Australia carried out a study on how effective concrete slabs are at keeping termites out, and how much cracking is required to allow termites in.
The Article can be downloaded from the link above or the original article can be found at http://www.ccaa.com.au/imis_prod/documents/Library%20Documents/CCAA%20Datasheets/DS2004Termites.pdf
Joins in a slab can potentially be a termite entry point. It's important to ensure that these joins are treated.
The concrete walls in this basement are an ideal termite barrier, only the joins to the base slab required treatment.