Skip to main content
Home/ Industries/ Architects and engineers
Architects · Engineers · MEP

Spec it in.
ASSE 1072-2020.
BIM ready.

The designer of a new hotel, hospital, or plant must specify floor drains and control measures. Compliance with ASSE 1072-2020 and EN 1253 is required for building certification. We provide specification sheets ready for inclusion in the cost estimate — no time wasted.

ASSE 1072-2020EN 1253BIM baseMEP-ready
ASSE
1072–2020
EN
1253
BIM
Spec
MDR
Class I
Problem & solution

What belongs in the bill of quantities.

The water and drainage package specifies gullies to EN 1253. The architect or MEP designer then needs models with defined parameters, certificates and an SDS to put into the bill of quantities.

Without Green Drain™

  • Without compliance with ASSE 1072 — subsequent revisions require documentation.
  • EN 1253 compatibility — covers most European floor gullies
  • BIM (Revit/ArchiCAD/Allplan) typically requires a model and specifications.
  • EU MDR Class I — if the facility is healthcare, the designer must specify the device.
  • The main contractor wants availability — lead time and price on request.

With Green Drain™

  • PDF specification by size (GD 1.25 to GD 6) — ready for the cost estimate
  • BIM template for Revit, ArchiCAD, Allplan — inserted into the model
  • Declarations of Conformity, SDS, and Certificates — one ZIP
  • ASSE 1072-2020 report — covers American standards for EU projects
  • Technical support in Croatian — the guy who replies the same day
Standards and Chambers

EU standards keep tightening.

The Croatian Chamber of Architects (HKA), the Croatian Chamber of Civil Engineers (HKIG), the Agency for Education and Training. Plus regional partners in Slovenia (ZAPS), Bosnia and Herzegovina (Chamber of Architects) and Serbia (Engineering Chamber). EN 1253 is part of almost every execution project.

EN 1253-1
Standard for floor P-traps — water seal ≥ 50 mm
EN 1253 6/7/8
Standards for mechanical seal wear (as of 2023)
ASSE 1072
2020 Edition — Trap Seal Device Standard
EU 2017/745
MDR Class I for healthcare facilities
LEED / BREEAM
Sustainability points — passive, long-lasting
RIAI / CIBSE
Irish professional bodies — specification practice
Data Sources and Regulatory Framework (2024–2025 data)

Statistical data were taken from official sources: State Statistical Office (data.dzs.hr) Croatian Institute of Public Health (hzjz.hr), Ministry of Labor, Pension System, Family and Social Policy (mrosp.gov.hr), Agency for Science and Higher Education (azvo.hr), Ministry of Tourism and Sports (mint.gov.hr). Regulatory framework: EUR-Lex for EU directives and regulations — Regulation (EU) 2017/745 (MDR), Regulation (EC) No 178/2002 (general principles of food law), Regulation (EC) No 852/2004 (food hygiene — HACCP obligation), Regulation (EC) No 1935/2004 and Regulation (EU) No 10/2011 (food contact materials), Regulation (EU) No 528/2012 (BPR), Directive 2014/34/EU (ATEX). Standards: EN 1253-1 (floor P-traps, water seal ≥50 mm), EN 1253 Parts 6/7/8 (gullies with a water seal below 50 mm, with mechanical closure, and combined types; 2023 editions), ASSE 1072-2020 (floor drain trap seal protection devices) and NSF/ANSI 2 (food equipment). HACCP International RG-04 is a private certification programme operated by HACCP International, not an official certification issued by a public authority. Tourism data taken from the DZS publication for H1 2025, healthcare data from the HZJZ report 2024, data for education from DZS publications for the 2023/2024 and 2024/2025 school years, data for nursing homes from the MROSP report, and announcements of EU-funded construction in 2025. Revision date: May 2026.

Implementation

How it goes through the design stage.

We send the documentation package on request. The designer carries it through concept, scheme and detailed design.

01

Request

Tell us the building type and the scope of the project and we will send the documentation package.

02

Conceptual design

Spec in the concept phase — we help with size selection.

03

Master plan

BIM model and PDF spec to the bill of quantities.

04

Delivery

The main contractor orders through us and we deliver to the programme.

Model Recommendation

Specification by project type.

Designers receive the complete Green Drain™ line (11 sizes) in BIM format (Revit, ArchiCAD, Allplan, Bentley). LOD 300 is sufficient for the construction project. For healthcare facilities, an additional MDR Class I documentation package. Tender specifications are prepared with references to ASSE 1072-2020 and EN 1253.

Green Drain™ Recommended for your industry.

  • New 4–5 star hotel — GD 2 (rooms), GD 3 (wellness, F&B), GD 4 (kitchen), GD 5 (stewarding).
  • Hospital / clinic — GD 2 (dominant), GD 3 (ICU), GD 4–5 (OR, kitchen), GD 5–6 (central channels). MDR Class I documentation.
  • Office building (tower) — GD 2 (sanitary facilities), GD 3 (canteen), GD 4–5 (garages). LEED/BREEAM contribution.
  • Food processing facility (BRC/IFS audit) — GD 3 (line), GD 4 (CIP), GD 5–6 (central channels). Environmental monitoring.
💬 Not sure of the exact size? Send us a photo of your sink drain — our technical team will respond with a written recommendation within the same business day, free of charge.
Check out Green Drain™ → Request a quote
GD 1.25–1.5
32 mm-40 · channels, condensates
GD 2
50–58 mm · standard new construction
GD 2.5
55–65 mm · adaptation, premium
GD 3
75–85 mm · HoReCa, sports
GD 3–3.5
80–89 mm · transition
GD 3.5–4
88–102 mm · industry, hotels
GD 4–6
102–110 mm-150 · central channels
Questions

What we get asked most.

In which format do you send the BIM files?

Revit (.rfa), IFC (universal), ArchiCAD (.gsm/.lcf) and Allplan. LOD 300 is sufficient for the construction project. We also send a PDF cut-sheet to size.

And for healthcare facilities (KBC, OB)?

We send an additional package: the Class I declaration of conformity under the EU MDR, the manufacturer's Single Registration Number (SRN) in EUDAMED, hospital-disinfectant compatibility data, and the technical file under Regulation (EU) 2017/745.

Price for the cost estimate?

We send current entry prices by size and quantity. Distribution partner in Croatia — no customs duties, no waiting.

Complete solution

Three products.
One protection portfolio.

Green Drain™ doesn't work alone — for maximum drain control it's combined with GD Uri-Tabs™ (urinals) and GreenSwirl™ (drain unblocking).

Ready for Free audit?

We come to the site, map the drains, and provide a written recommendation — no cost, no obligation.