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A specific architectural vocabulary is used around dormers. Many terms come from carpentry and roofing technology and are not immediately obvious to those without a construction background. This article bundles the most commonly used concepts.

Hoofdgids · 18 min lezenComplete gids over dakkapellen
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Core concepts

TermBrief description
Sleeper beamLongitudinal timber that distributes the dormer's load across the roof structure.
Trimmer constructionFraming around an opening in a roof or floor plane.
Fascia boardVertical finishing panel along a roof edge.
Roof trimAluminum edge profile sealing the roofing material.
Side cheekVertical side surface of a dormer.
Counter-battensWooden strips underneath the roof battens to facilitate water drainage below the roof tiles.
Wall plateHorizontal wooden beam on top of a facade wall, to which the roof structure connects.
PurlinHorizontal beam in the roof structure supporting rafters or roof boarding.
RafterSlanted beam in a rafter roof, from the wall plate to the ridge.
RidgeHighest horizontal line of a pitched roof.

In articles on DakkapelWiki, these terms consistently link to their individual concept pages. Readers familiar with the structural vocabulary can thus click through quickly; for those who are not, the definitions provide support.