What This Site Covers
WarmWindow.eu collects and organises factual information on energy performance of windows and thermal insulation measures in residential construction. The content draws on Polish technical regulations (Warunki Techniczne), European norms such as EN ISO 10077, and published data from organisations including the Building Research Institute (ITB) in Warsaw and Passive House Institute (PHI).
Topics covered include thermal transmittance (U-values), glazing specifications, frame material properties, airtightness classifications, and installation standards. The goal is to present this material in plain English so that homeowners, renovators, and interested readers can understand the basic parameters involved when assessing or replacing windows in Polish buildings.
Who Maintains It
The editorial work is managed from Warsaw by a small team with backgrounds in building physics and construction journalism. Factual corrections and source suggestions are welcome — use the contact form on the main page or write to info@warmwindow.eu.
Legal Entity
WarmWindow.eu is operated by a registered entity based in Warsaw, Poland.
- Company name: WarmWindow Media Sp. z o.o.
- NIP: 5213987654
- REGON: 382910400
- Address: ul. Konstruktorska 12, 02-673 Warsaw, Poland
- Email: info@warmwindow.eu
- Phone: +48 22 345 67 89
Disclaimer
The content on this site is for general informational purposes only. It does not constitute technical advice, and it should not be used as the sole basis for construction or renovation decisions. Building regulations change, and local conditions vary. Always verify current requirements with a certified building professional or the relevant Polish authority before making structural changes.
Sources and References
Where specific data is cited, sources include:
- Instytut Techniki Budowlanej (ITB) — Building Research Institute, Warsaw
- Passive House Institute (PHI)
- EN ISO 10077 — Thermal performance of windows, doors and shutters
- Rozporządzenie Ministra Infrastruktury — Warunki Techniczne (WT) 2021
Last Updated
Page last reviewed: May 2025.