What EPC rating can a new timber home achieve?

New timber homes routinely achieve EPC ratings of A or B. With standard good-practice construction (U-values 0.15–0.20 W/m²K, airtightness 3–5 m³/h/m², gas boiler), an EPC B rating (SAP 81–91) is typical.

New timber homes routinely achieve EPC ratings of A or B. With standard good-practice construction (U-values 0.15–0.20 W/m²K, airtightness 3–5 m³/h/m², gas boiler), an EPC B rating (SAP 81–91) is typical. With enhanced specification (U-values 0.10–0.15 W/m²K, airtightness <3 m³/h/m², heat pump, MVHR, solar PV), EPC A rating (SAP 92+) is readily achievable. Timber frame construction makes it easier to achieve high EPC ratings because the fabric performance (insulation and airtightness) is inherently better than standard masonry, reducing reliance on expensive renewable energy systems to achieve the same rating.

Why this matters

This question relates to Energy Efficiency of Timber Homes: U-Values, Airtightness & EPC Ratings, which covers the broader topic in detail. Understanding this specific aspect helps architects, builders, and timber dealers make informed specification decisions.

For full context and additional technical detail, see our comprehensive guide:

→ Energy Efficiency of Timber Homes: U-Values, Airtightness & EPC Ratings

Related questions

• Why are timber homes more energy efficient than masonry homes?
• What U-values can timber frame walls achieve?
• What airtightness levels can timber homes achieve?

About this answer

This answer is part of the PuurModulair Knowledge Base — comprehensive timber specification guidance for architects, builders, and dealers across the UK, EU, and Scandinavia.