Import your Revit model, get a full room-by-room fabric schedule, and run SAP 10.2 · BER/NZEB · Part L — every result cited to the exact regulation clause, not an approximation.
Replacing tools that haven't changed since 2003
Excel-based. Crashes on Windows 11. No API. 2003 UI. No clause references.
£8,000/yr per seat. Weeks of training. Overkill for Part L screening.
Desktop-only. No cloud sync. No collaboration. Last updated 2011.
Autodesk lock-in. No Irish/SEAI data. Complex per-module licensing.
Export gbXML from Revit (or IES-VE, AutoCAD MEP), drop it in, and Cóir Calc builds a complete room-by-room fabric schedule — areas, U-values, glazing by orientation — then feeds it straight into SAP 10.2 and BER/NZEB. No re-typing twenty fields from a drawing.
Six specialist modules, each implementing the exact regulation methodology — not approximations.
Turn an equipment schedule into CIBSE Commissioning Code + BSRIA-mapped prefunctional & functional test sheets — every single line cited to its standard. Export to Excel or push to CxAlloy.
TGD Part L 2022 and AD Part L 2021 backstop U-value screening, air permeability, EPC/CPC/RER (Ireland) or FEES/TER/DER (England). Every result cites the exact clause.
BS EN 12831 heat loss, CIBSE AM17:2022 SCOP verification (≥2.5 threshold), MIC electrical sizing, SEAI Better Energy Homes grants, UK Boiler Upgrade Scheme (£7,500).
Equal-friction circular sizing using CIBSE Guide C 2007 Eq. C4.3 (Colebrook-White). EN 1506 standard diameters. SFP ≤0.5 W/(l/s) check. Replaces CalcuDUCT.
Whole-dwelling ventilation rates per TGD F 2019 (Ireland) and AD F 2021 (UK). Wet-room extract sizing, cMEV/MVHR strategy, system capacity. Kitchen/bathroom/WC rates cited.
Full SAP 10.2 dwelling energy assessment for England, Wales, and Scotland. EPC band, CO₂ targets, fabric schedule, renewables, TER/DER/FEES/TPER — replacing approved desktop SAP software.
Claude-powered tender-ready M&E specifications. Input building type and systems — get 40–80 pages citing CIBSE, ETCI, Part L, BSRIA, and fire codes in under 5 minutes.
Every calculation implements the exact published methodology. Every result cites the specific clause, table, or equation from the authoritative standard.
Input building dimensions, U-values, system types, and location. Smart defaults pre-fill typical values — change only what matters for your project.
Results against TGD Part L 2022, SAP 10.2, CIBSE Guide C, and AM17 appear in seconds. Every figure traces back to its source clause — no black boxes.
Download a branded PDF dossier with full methodology, PASS/FAIL/RISK verdicts, and clause references. Ready for your Design Certifier, client, or SEAI submission.
Built from authoritative standards — every calculation cited
Start free. Upgrade when you need the full suite. Cancel anytime.
For exploring the platform.
For practising M&E engineers and BER assessors.
For MEP consultancies and BER assessment firms.
Advisory tool — not a certificate of compliance. Cóir Calc results are design-stage indicators only. They do not discharge the duties of a Design Certifier or Assigned Certifier under SI 9 of 2014, constitute a BER certificate, a SAP lodgement, or a BCAR Certificate of Compliance. Always engage a registered professional for statutory submissions.
Free to start. No training. No install. Every result cited to its exact regulation clause.