Timber Buildings app for iPhone and iPad

What needs to be considered for the planning and building of energy-efficient, sustainable houses? This multilingual app (English, German, Italian), based on the book Timber Buildings – Low-energy Constructions, gives an overview on this topic by means of timber frame and X-lam building examples. Various parts of the building are illustrated through informative charts, zoomable illustrations and 180-degree-rotatable 3D models. The construction details focused on are:

(1) foundation-to-wall connection,
(2) overhang,
(3) interior wall,
(4) exterior wall,
(5) green roof
(6) flat roof
(7) pitched roof – eaves
(8) pitched roof – ridge.