Insulation and performance

How much does an armoured door really insulate? A good door doesn’t just protect you from burglars: it shuts out the noise of traffic and the stairwell, stops draughts and lowers your heating bills.

In this archive you’ll find everything about an armoured door’s real performance: acoustic insulation and how many decibels it cuts, thermal insulation and transmittance, why condensation forms and how to get rid of it, how much a door weighs and how it’s made inside.

No baffling acronyms. We explain what the numbers on the spec sheets mean and what changes for the people living behind the door every day, so you can tell whether a door really insulates or only does so on paper.