Quality assurance process

It is easy to make mistakes with any modelling software, so having a robust QA procedure within your organisation is key. Ideally there will be someone who can look over your PHPP on a regular basis. Clear mark-ups of treated floor area, heat loss areas, windows and shading make for easy checking, as does keeping previous versions of your PHPP.

If your experience is limited employ a Certifier early on in a project to check what you’re doing, agree any points of contention and provide any hand-holding you may need. Whilst certification usually starts pre-construction, having some experienced input (especially before planning) will ensure you’re on the right track.

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