Читать книгу Harper's Outdoor Book for Boys - Joseph H. Adams - Страница 27

Where there is a large tree on the place or near the house, a toadstool canopy (Fig. 4) may be constructed above a comfortable seat. The framing of the canopy is shown in Fig. 5, where the arrangement of corner rafters and braces can be clearly seen. The tree end of each rafter is bevelled (or cut on a slant) and nailed fast with steel wire nails. The under braces are keyed to the tree by cutting out a wedge of the bark, so that the lower end or point of the bracket will fit into it. These ends are to be well nailed to the tree-trunk, as they are the main props to hold up the roof. Between the corner rafters let one rafter in on each side; then nail shingle lath on the top of the rafters, and to these the shingles are fastened.

A seat eighteen inches wide may be built about the foot of the trunk and supported by two-by-three-inch joist let into the ground a foot or eighteen inches. Instead of shingling this roof, it may be thatched with salt hay arranged in flat tufts and nailed onto the lath. Begin at the lower edge to do this and thatch one line first; then begin on the end of the line above it and arrange the tufts closely side by side, and nail them fast. The last line at the top should have tar paper under it, closely fitted, and nailed to the tree trunk with copper tacks and painted. This will deflect the water and prevent it from running down the trunk and wetting the seat.