Hutt Valley High School has failed to secure a binding commitment from the Education Minister to quickly rebuild a mould-riddled teaching block. A block of classrooms at Hutt Valley High School has had to shut due to mould and leakage problems. Photo: Supplied Five hundred senior students have been forced to learn from home for half the week due to classrooms that have leaked for years, becoming unsafe with toxic black mould. Students aim to protest outside Parliament today. Board of Trustees chair Hamish Bowen and two former board chairs sought assurances from Minister Chris Hipkins in a 45 minute meeting on Tuesday.