SUMMIT GROUP

External Insulation & Thermal Mass Properties of Solid Wall Buildings

by Summit MattersStandards of Building, The Science of Building, Traditional Build Methods December 3, 2025December 3, 2025Comments are Disabled

When upgrading older homes, one of the most effective ways to improve comfort and energy performance is by applying external wall insulation (EWI). Unlike internal insulation, which reduces room sizes and can leave cold masonry behind the insulation layer, external insulation places the thermal envelope on the outside of the house. This means the existing …

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Why We Prefer Woodfiber Insulation (Not Just for Sustainability)

by Summit MattersSustainability, The Science of Building, What we do August 26, 2025Comments are Disabled

When comparing insulation options, PIR (polyisocyanurate) often looks cheaper upfront. But when we step back and look at the whole picture over a building’s lifetime, woodfiber consistently comes out ahead. Here’s why. 1. True Cost Over Time PIR boards are thin and affordable per square metre, but the story doesn’t end with the purchase price. …

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Lets talk about… Building Condensation

by Summit MattersStandards of Building, Summit Group, What we do November 15, 2024November 29, 2024Comments are Disabled

TLDR; If you have condensation issues, throw your windows open in the morning. Vent your house and avoid creating thermal bridging. Talk to us. Complaints and queries about condensation in buildings come in waves. Usually preceeded by a change in the weather.

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