FIELD: building, particularly ventilation system for sloping roof of building having a roof space with under-roofing material laid above rafters, for erection and repair of buildings with above roofs.
SUBSTANCE: ventilation system is provided with additional vertical exhaust ducts connected from outside to exhaust ducts located in roof space. Exhaust ducts of roof space have inlet orifices connected with outlets of sloping channels. Additional exhaust duct width is equal to that of slopping channel and venting furring bar height. Outlet orifices of additional vertical exhaust ducts are under orifices of exhaust ducts located in roof space and spaced a distance from them. The distance is equal to sloping channel width. Inlet orifices of sloping channels are arranged in eaves cave. Inlet orifices of roof space are in lower surface of eaves cave.
EFFECT: prevention of moisture condensing and, as a result, increased service life and prevention of snow thawing, ice and icicles forming on outer roof side, improved performance.
1 cl, 2 dwg
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