The design of a pergola is greatly defined by the roof covering, or rafters; which can be simple – allowing the climbing up plants be the star attraction; or even more sophisticated – where the structure itself is the main feature. Having many alternatives, it is in some cases difficult to choose! Let’s consider some opportunities.
Normally developed from several planks of timber, the rafter are formed at the ends, as well as run horizontally across the top of the structure. These can be scratched at different levels to develop the wanted effect. If the pergola roofing is to fit flush, the notches are cut to half the deepness of the rafter, to make sure that when both are positioned, they are smooth across the top. If, nevertheless, the rafters are scratched to less than half of the deepness, the primary rafters will certainly stand happy with the cross rafters. This can be done to varying programs, also to the point of no notching in any way, where the cross rafters remain on top.
Creating distinct and fascinating rafter tail ends is the fun part. If the structure is the main tourist attraction, in order to develop a much more ornamental as well as individual style, curved ends could be very reliable.
These can be used instead of, or in addition to, the rafters. They do not require notching as well as can be merely screwed along the side rafters. This could commonly be a sensible alternative for those who intend to construct a simple pergola, rapidly and also cheaply.
One more application, frequently seen, is to use laths as an extra layer, positioning them as cross rafters ahead the primary ones. This offers a three-tiered result and, with luxuriant rafter tail ends, could create a really elaborate style.