Drill holes are an indicator that the area or areas may have been treated by chemical injection in respect to termite control or protection. (Externally)
Severe – I inactive termite attack (damaged timbers and/or termite workings) – Window frame/sill timbers: (Internally)
Moderate/severe – Inactive termite attack (damaged timbers and/or termite workings) – Rafters: Purlin: Ceiling joists: (Roof void area).
Mound on a tree – Nasutitermes Walkeri spp. – (Site)