Durability: what actually makes a building last
Buildings rarely fail because a material was weak. They fail because water got somewhere it could not dry, or because thermal and moisture cycling worked a joint loose over decades.
Cycling is the enemy
Every day a wall heats and cools, and every year it does so across a wider range. Materials expand and contract at different rates, joints work, sealants age. The assemblies that last are the ones where those movements are small or accommodated.
An envelope that keeps its structure closer to a stable temperature reduces the amplitude of the cycling it is subjected to.
Water and the ability to dry
Bulk water, vapour and air-transported moisture all have to be managed, and no assembly is perfect. Durability comes from having a drying path when the inevitable happens.
Materials that do not feed mould, do not rot and do not swell take a large category of failure off the table entirely.
Maintenance you never do
The longest-lived assemblies are the ones nobody has to touch. Inorganic materials, factory-made connections and finishes chosen for the exposure rather than the budget are what buy those decades.
What Guardian publishes
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Guardian states that by reducing thermal stress and moisture infiltration a well-designed thermal envelope can extend the lifespan of building materials and structural components, reducing maintenance costs over time.
Source · Differentiation sheet
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Panels are moisture and mould resistant, do not decay, expand or warp, and there is no wood for pests or termites.
Source · Differentiation sheet; Market page
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Guardian's market material lists impact resistance and wildfire resistance among the durability characteristics.
Source · Market page, enhanced durability
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Written by Data Subsystems, for Guardian Structural Technologies. Last updated .
Drafted from Guardian Structural product literature and published building-science sources. Awaiting Guardian technical review. Confirm any figure against the current product documents or ask us before you rely on it in a design.