Comparing Internal and External Wall Insulation

Last modified: 09.05.2023
Interior view of a timber-frame structure with foil-backed rigid insulation boards fitted between the studs. This reflective insulation helps improve thermal performance by reducing radiant heat loss. Ideal for low-energy or airtight builds, these boards can be paired with EWI Store’s ventilated render-only systems to deliver a complete, high-performance building envelope.