Producer Statements Explained: When PS1-PS4 Need an Engineer's Sign-Off

Fil Engineers

Published on: 21/10/2026

What PS1, PS2, PS3 and PS4 producer statements mean, who can sign them, and when your build or alteration needs an engineer's sign-off.

producer statementsbuilding consentPS1 PS4engineering NZalterations

Bracing and Alterations: Why Removing One Wall Can Affect the Whole House

Fil Engineers

Published on: 15/10/2026

Removing or altering a wall can quietly reduce a house's resistance to wind and earthquakes. Here's what bracing is and why it matters.

bracingwall removalalterationsNZS 3604building consent