Free · Hidden Moisture Under Metal Roofing: Damage to Underlay, Insulation and Timber

Published date: August 8, 2026 3:07 pm

Location: Auckland, Auckland, New Zealand

Moisture may enter from outside through defective cladding, flashings, fasteners or penetrations. It can also originate inside the building when humid air reaches cold roof-space surfaces and condenses.

More-info: https://johnsonroofingltd.co.nz/hidden-moisture-under-metal-roofing-damage/