This preprint presents the fire layer of the MARIT framework, an interpretive engineering methodology designed for improving survival conditions and operational safety in extreme emergency environments. MARIT (Maritime Assessment & Rescue Interpretive Triaging) is structured as a triad of methodologies addressing three operational environments: Offshore rescue operations (MARIT Offshore SAR) https://doi.org/10.5281/zenodo.18407581 Aviation disaster localization (MARIT Aviation PSLS) https://doi.org/10.5281/zenodo.18840828 Structural fire environments (MARIT Fire PRS) The present document introduces the fire component of the MARIT triad. The MARIT-FIRE PRS (Pressure Relief System) proposes a simple mechanical approach intended to: reduce rapid oxygen mixing, equalize pressure before entry, decrease the probability of explosive ignition during door opening. The concept focuses on controlled pressure equalization through small-diameter venting, allowing gases to escape gradually before structural entry occurs. The objective is not to replace existing firefighting tactics but to add a simple mechanical layer that may reduce risk during entry operations. This work is released as open humanitarian engineering research. No patents are sought for the core concept presented in this document. The intention is to allow researchers, firefighters, safety engineers, and institutions to freely test, critique, and further develop the methodology. If the concept contributes to improved firefighter safety or saves human lives, that outcome represents the highest value of the research.
Oleg Zmiievskyi (Wed,) studied this question.