Window Types – Sliding and Double-Hung Window Features

Annotated comparison photo showing two residential window types: a sliding window (top) with gray plugs at top and bottom of the frame meet point, and a double-hung window (bottom) with gray plugs on both sides, with green circles highlighting the plug locations. This appears to be a technical reference document, possibly related to window sound insulation or weatherproofing assessment.

Notes

Comparison image showing two types of windows with their distinctive features. The top image shows a sliding window with gray plugs at top and bottom, while the bottom image shows a double-hung window with gray plugs on both sides. Both images highlight the location of the plugs with green circles.

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