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CLOSE THIS BOOKAttic Completion Work - Course: Timberwork techniques. Trainees' handbook of lessons (Institut fr Berufliche Entwicklung, 14 p.)
VIEW THE DOCUMENT(introduction...)
VIEW THE DOCUMENT1. Purpose of Attic Completion Work
VIEW THE DOCUMENT2. Types of Roof Superstructures
3. Building-in of Roof Superstructures

2. Types of Roof Superstructures

Roof superstructures for housing purposes are normally designed as roofed upright windows. For roofs having a roof pitch of less than 50 degrees, upright windows with lean-to dormer or with hip roof are recommended.


Figure 4 Roof pitch of less than 50 degrees

(1) Lean-to dormer roof, good solution
(2) Hip roof, good solution
(3) Gable roof, bad solution, (4) Lean-to dormer roof, bad solution

1 ridge (main roof), 2 eaves (main roof), 3 roof superstructure, 4 window roof (roof superstructure), 5 rafter (main roof), a - eaves angle (main roof) a - bonding-in length in the roofing

For the lean-to dormer it is important that the bonding-in in the roofing is not too near to the roof ridge. If upright roof windows of roofs having such pitches are roofed with gable roofs, they make a poor impression. The ridge of the window roof appears too long - see Fig. 4.

For roof pitches of more than 50 degrees, an upright roof window roofed with gable roof is recommended.


Figure 5 Roof pitch of more than 50 degrees

(1) Gable roof, good solution (2) Hip roof, bad solution (3)Lean-to dormer roof, bad solution

1 ridge (main roof), 2 eaves (main roof), 3 roof superstructure, 4 window roof (roof superstructure), 5 rafter (main roof), a - eaves angle (main roof) a - bonding-in length in the roofing

If in this case the window is roofed with a lean-to dormer or hip roof, it makes a bad appearance because the ridge line appears too short (see Fig. 5).

Why does attic completion work also call for roof superstructures?

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Why should the roof superstructure be suited to the existing roof pitch?

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