We are building a 2.4x2.4 pegola/gazebo in the next few weeks just wondering about some build pointers. The frame will consist of 4 4x4 posts and then 4x2 across the top edge. The cross beams will be cut to fit into the 4x2s which also will be cut out.... The posts will be sat in galavenised holders and bolted to concrete... We are looking to cover the roof and properly seal it and any ideas on what to use will be helpful. Also we are looking to.cover two sides and come out so no weather gets through. Also we intend to come out about a 3rd from the other ends...... What could we use to cover these areas !!!! Help much appreciated........