Energy Performance Certificates (EPCs) measure a property’s energy efficiency, ranging from A (most efficient) to G (least efficient). One often-overlooked factor influencing EPC ratings is moisture and dampness within walls, floors, and roofs. Excess moisture can reduce thermal performance, increase heating requirements, and ultimately lower EPC scores.
How Moisture Impacts Energy Efficiency
Reduced Insulation Effectiveness
Wet or damp insulation loses its ability to retain heat effectively.
This increases energy consumption for heating, negatively affecting EPC ratings. Learn more via our Residential EPC Services.
Heat Loss Through Walls and Floors
Moisture in structural elements increases thermal conductivity, causing heat to escape faster.
Proper identification and remediation are crucial for accurate EPC assessment. Explore our Same Day EPC Services.
Impact on Air Tightness
Damp areas can compromise seals around doors, windows, and floorboards.
Air leakage reduces energy efficiency, which EPC assessors must account for. Learn more on our About Us page.
Long-Term Building Health
Persistent dampness can lead to mold, rot, and material degradation, further reducing thermal efficiency.
Addressing these issues is important for maintaining or improving EPC ratings. Check our Pricing Plans for professional assessment services.
Strategies to Mitigate Dampness and Improve EPC Ratings
Improve Ventilation: Install extractor fans or ventilated systems to reduce humidity.
Repair Leaks: Address roof, plumbing, or gutter leaks promptly.
Damp-Proofing Measures: Apply cavity wall insulation, membrane layers, or sealants as appropriate.
EPC Re-Assessment: After remediation, schedule an EPC update to reflect energy efficiency improvements. Contact our team via Contact Us for expert guidance.
Conclusion
Moisture and dampness can significantly impact a property’s energy efficiency and EPC rating. Proper identification, remediation, and reassessment ensure accurate EPC scores and better energy performance, saving on heating costs and enhancing comfort.
For professional EPC assessments addressing moisture, dampness, and other energy efficiency factors, visit our Residential EPC Services page.
