Dormers
Please remember that the walls, or 'cheeks', of dormer roofs (dormers) are in fact external walls. As such they need to be designed, engineered and manufactured with the same care and consideration as any other wall in a timber-frame structure.
Rooflights & Suntubes
Fixed along the same roof plane as the roof finish (tiles, etc.), roof lights (sometimes called skylights) can allow roof space to become useful rooms, especially where, for planning or other reasons, it is not possible to create roof dormers. However, the size, design and type of roof light (e.g. opening or fixed, shading and blinds, etc.) can be crucial to the effective use of these. Designed correctly, some roof lights can also be used for roof / balcony area access, or fire exits.
