Supraframe (tm) system is made from hi-tensile truecore zincalume (tm) steel, whereas many existing systems use lower strength and/or galvanized steels. The manufacturer of Bluescope/Lysaght Turecore (tm) steel estimates an expected minimum service life of 75 years in house framing applications.

Supraframe (tm) and Supratrusses(tm), frames and trusses are covered by a 50 year materials guarantee*. This guarantee is backed by Bluescope Steel (formally BHP Steel).

Tests by the Timber Development Association on timber framed homes that HAD chemical or physical barriers to termites have shown significant levels of termite infestation in homes less than 50 years old. Futhermore most timber frames today are softwood and are very susceptible to termite infestation. Ask your timber frame supplier what his guarantee is!!!

* Subject to conditions.