The Passivhaus Handbook
A practical overview of low-energy building principles, airtightness, ventilation, and retrofit considerations.
Why we recommend it: Pairs with the Coordinator Building Physiology and Airtightness & Ventilation study pages.
RetrofitReady picks
Useful Amazon UK books and inspection kit for Retrofit Assessor, Retrofit Coordinator, Domestic Energy Assessor, and PAS 2030 Retrofit Installer revision.
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Useful reading for PAS 2035, building physics, fabric-first decisions, and retrofit coordination.
A practical overview of low-energy building principles, airtightness, ventilation, and retrofit considerations.
Why we recommend it: Pairs with the Coordinator Building Physiology and Airtightness & Ventilation study pages.
A detail-focused guide to the thermal, airtightness, and design principles behind high-performance buildings.
Why we recommend it: Pairs with the Coordinator Building Fabric: Materials & Best Practice topic.
A case-study led look at UK residential retrofit projects, design decisions, outcomes, and lessons learned.
Why we recommend it: Pairs with the Assessor Retrofit Advice page and the Coordinator Introduction to Domestic Retrofit page.
A RIBA-published, plain-English guide to planning a whole-house retrofit: fabric, ventilation, heat, and the order to do things in.
Why we recommend it: Pairs with the Coordinator Introduction to Domestic Retrofit page and the whole-dwelling, fabric-first approach of PAS 2035.
An illustrated guide to sensitively retrofitting older and traditionally built homes without trapping moisture in the fabric.
Why we recommend it: Pairs with the Assessor Building Physiology topic and the risk-based approach to traditional construction in PAS 2035.
Practical field references for domestic energy assessment, EPC workflow, condition reporting, and assessor judgement.
A field-oriented reference for Domestic Energy Assessor practice and EPC-related workflow.
Why we recommend it: Pairs with the DEA Produce and Explain Energy Performance Certificates study page.
A compact companion for retrofit assessor learners who want extra prompts around evidence, appraisal, and risk.
Why we recommend it: Pairs with the Assessor Risk Assessment, Dwelling Appraisal, and Condition Report topics.
A checklist-style notebook for structuring domestic EPC inspection notes and evidence while on site.
Why we recommend it: Pairs with the DEA Prepare for Energy Assessments and Undertake Energy Assessments study pages.
Compact kit that supports property inspection, measurement, evidence gathering, and pre-retrofit checks.
A general-purpose moisture meter for checking damp risk indicators during condition and retrofit surveys.
Why we recommend it: Pairs with the Assessor Building Physiology topic and the Coordinator Assurance & Risk Management page.
A durable 8m tape measure for room dimensions, openings, and site measurements during energy assessments.
Why we recommend it: Pairs with the DEA Undertake Energy Assessments topic and field evidence questions.
Rechargeable inspection lights for loft, cupboard, service, and low-light checks during property visits.
Why we recommend it: Pairs with the Assessor Condition Report topic and the DEA safe, effective assessment workflow.
A portable CO₂, temperature and humidity monitor for checking indoor air quality and ventilation performance in occupied dwellings.
Why we recommend it: Pairs with the Coordinator Airtightness & Ventilation topic and the 'build tight, ventilate right' checks behind PAS 2035.
A compact, USB-C rechargeable laser distance measure for quick, accurate room and opening dimensions on site.
Why we recommend it: Pairs with the DEA Undertake Energy Assessments topic and dimension-driven field evidence questions.
A rugged IP65 green-beam laser measure with Bluetooth export — high visibility for long indoor spans during detailed surveys.
Why we recommend it: Pairs with the Assessor Dwelling Appraisal and Condition Report topics, where accurate, documented measurements matter.
A screen-based borescope for inspecting wall cavities, floor voids, lofts and service runs where you cannot see directly.
Why we recommend it: Pairs with the Assessor Condition Report topic and pre-retrofit checks for hidden defects and existing insulation.
A digital temperature and relative-humidity monitor with min/max records for spotting condensation and damp risk indoors.
Why we recommend it: Pairs with the Coordinator Assurance & Risk Management page and moisture-risk judgement on the Assessor route.
A rechargeable, hands-free head torch for lofts, cupboards, service voids and other low-light inspection spots.
Why we recommend it: Pairs with the Assessor Condition Report topic and safe, thorough property inspection during energy assessments.
Use the recommended references alongside 1,920 app questions across 34 Retrofit Assessor, Coordinator, DEA, and Installer topics.