Are they like the dadant migratory covers in design?On my telescoping covers I use 3/4 x 4 inch drip edges or as I call them "risers," glued and stapled from the top of the plywood with 2 inch staples. The dipping in rosin/wax seems to seal the staples in. These covers don't seem to warp. That's not the case with migratory covers as many have warped during the dipping process. This year I am going to add supports length wise and see if that helps.
What kind of plywood do you use?We don't design lids or migratory covers based on the tongue and groove crap that's the common use, they are recipie for leaking, water penetration into joints and rotting. We've built hive bodies, migratory lids and bottom boards from standard plywood, different thinknesses over the years and they outlast anything purchased at least 2 to 1.
A good way of cutting plywood with a circular saw is to take a scrap piece with a factory edge on the long side, cut it about 6"-8" wide and use it as a straight edge on the piece you need to cut. Make sure you measure the distance from the edge of the saws base plate to the blade and add or subtract it (depending on what side you are using) from the measurement that you need and clamp it down with a couple of small clamps at each end. If both pieces have a bow to them, make sure the both are facing each other (helps to keep the stock and straight edge tight in the middle so the saw doesn't creep under the straight edge while you are cutting)I got a table saw for my Bday last year. I can't find a good way to cut plywood on it since it has a small table. Any suggestions? Should I whack it in half with a skil saw or a jig saw and then go from there on the table saw?