A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Ventilation of Flat Roofs
The purpose of the project has been to set up rules for designing flat roof constructions - primarily of wood and wood based materials - in accordance with the moisture conditions in the rooms below. The rules deal with the location of insulation material in relation to the vapour barrier in cold and warm roofs, and the design criteria for ventilation of the roof cavity. Furthermore it has been evaluated, whether roofs with high moisture content could be dryed out by increasing the ventilation of the roof cavity. The project has shown that the main factor in ensuring that a flat roof functions satisfactorily is the complete airtightness of the underside of the roof cavity - the vapour barrier. If the vapour barrier is defective, air from the rooms below will rise into the roof space where its moisture content will condense during cold periods. This resulting moisture will have to be removed by ventilating the cavity with outside air to prevent a detrimental accumulation in materials able to absorb moisture. (ERA citation 10:027866)
Ventilation of Flat Roofs
The purpose of the project has been to set up rules for designing flat roof constructions - primarily of wood and wood based materials - in accordance with the moisture conditions in the rooms below. The rules deal with the location of insulation material in relation to the vapour barrier in cold and warm roofs, and the design criteria for ventilation of the roof cavity. Furthermore it has been evaluated, whether roofs with high moisture content could be dryed out by increasing the ventilation of the roof cavity. The project has shown that the main factor in ensuring that a flat roof functions satisfactorily is the complete airtightness of the underside of the roof cavity - the vapour barrier. If the vapour barrier is defective, air from the rooms below will rise into the roof space where its moisture content will condense during cold periods. This resulting moisture will have to be removed by ventilating the cavity with outside air to prevent a detrimental accumulation in materials able to absorb moisture. (ERA citation 10:027866)
Ventilation of Flat Roofs
V. Korsgaard (author) / K. Prebensen (author) / T. Bunch-Nielsen (author)
1984
109 pages
Report
No indication
English
Ventilation of Timber Flat Roofs
| Taylor & Francis Verlag | 1985
| Engineering Index Backfile | 1936
| Engineering Index Backfile | 1936
| Taylor & Francis Verlag | 1989