This section is from the book "Cyclopedia Of Architecture, Carpentry, And Building", by James C. et al. Also available from Amazon: Cyclopedia Of Architecture, Carpentry And Building.
It is a common practice to use what are called "verge boards" for the finish of the gable ends of buildings. These are a kind of ornamental rafter which follows up the rake of the roof, not along the wall but some distance from it, being held in place by lookouts which are nailed to the studding or to the boarding and placed at the proper distances apart. The verge board forms a stop for the gutter and furnishes a very suitable finish for the gable. It is usually crowned with a raking molding of some sort and is, therefore, only a big fascia. Fig. 302 shows a verge board in elevation at the point where it joins the eaves, and Fig. 303 shows a section through the verge board and the end wall of the building showing how the board is supported by the lookouts. In this figure, A is the verge board, B is the raking molding, C is the blocking which forms the lookout, D is the outside boarding of the wall, and E is the shingling, F is the roof boarding, and G is the roof shingling.
Fig. 302. Use of Verge Board as Gable Finish.
Fig. 303. Section through Verge Board and End Wall.