Problems of airflow in the open air space between double skin roofs of passive objects

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Problems of airflow in the open air space between double skin roofs of passive objects

Popis výsledku v původním jazyce

This contribution deals with the verification of airflow in the real air gap of an insulated roof deck with a pitched roof. The designed construction of the roof meets the thermal technical requirements for an energy passive house. The aim of this contribution is a comparison of experimentally measured values with values obtained through a computer simulation. Double skin ventilated roof structures operate on the principle of the removal of moisture vapour by the flow of air. The flow of air is generated by the difference in the density of the air gap. The air gap is created by the warming of the air from the interior, radiation from the night sky and the influence of the external flow of air. The most striking was the first factor, which is significantly reduced with increasing thicknesses of thermal insulation. This raises the issue whether the air flow in passive insulated roof cladding is sufficient for the removal of moisture from a construction, and how it affects the functioning thereof.

Název v anglickém jazyce

Problems of airflow in the open air space between double skin roofs of passive objects

Popis výsledku anglicky

This contribution deals with the verification of airflow in the real air gap of an insulated roof deck with a pitched roof. The designed construction of the roof meets the thermal technical requirements for an energy passive house. The aim of this contribution is a comparison of experimentally measured values with values obtained through a computer simulation. Double skin ventilated roof structures operate on the principle of the removal of moisture vapour by the flow of air. The flow of air is generated by the difference in the density of the air gap. The air gap is created by the warming of the air from the interior, radiation from the night sky and the influence of the external flow of air. The most striking was the first factor, which is significantly reduced with increasing thicknesses of thermal insulation. This raises the issue whether the air flow in passive insulated roof cladding is sufficient for the removal of moisture from a construction, and how it affects the functioning thereof.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20101 - Civil engineering

Projekt

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Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

17th International Multidisciplinary Scientific GeoConference

ISBN

9786197408133

ISSN

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e-ISSN

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Počet stran výsledku

13

Strana od-do

367-374

Název nakladatele

STEF92 TECHNOLOGY LTD

Místo vydání

Sofia (Bulharsko)

Místo konání akce

Albena

Datum konání akce

29. 5. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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