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