Opening typologies
Functionality is not the only difference between sliding and hinged windows. Reviewing the factors that influence the choice helps select the right opening type for each project.
General comparison: hinged or sliding?
In general, hinged windows offer better thermal efficiency, acoustic insulation and weather tightness. Sliding windows can cover larger openings and make better use of interior space.
Sealing elements
Hinged windows use EPDM rubber gaskets positioned inside, centrally and outside. Sliding windows use brushes or weatherstrips, sometimes with Finseal or Tri-fin plastic fins. In general, gaskets provide better tightness than brushes.
Number of locking points
The more locking points a window has, the better its security and tightness. Hinged windows can have locking points around the perimeter, while sliding systems usually place them on the sides.
Watertightness
Hinged windows usually achieve higher watertightness classifications thanks to their gasket system, closing materials and perimeter locking points.
Glass composition
As a rule, a higher glazing capacity allows thicker glass and improves thermal and acoustic performance. In the same range, hinged windows usually allow greater glazing capacity than sliding systems.
Opening percentage
Hinged windows can open the whole opening, while sliding leaves occupy part of it when open. A pocket or galandage solution can hide the leaves inside the wall.
Inward space occupation
Hinged windows occupy interior space when they open. This should be considered in small rooms or where the area near the window must remain clear.
Maximum weight per leaf
Hinged leaves are supported by hinges and therefore accept less weight. Sliding leaves rest on a lower track and can support heavier leaves, especially in lift-and-slide or motorised systems.
Maximum width per leaf
Sliding windows allow larger leaves, making them the recommended option for large openings and bigger glazed surfaces.
Every opening type has advantages and limitations. The final choice depends on performance, available space, aesthetics and user preferences.