Edging plastic panel
Fit to the perfect (as far as possible) coincidence at the top and bottom, set in place, driving one edge into the groove near the window. When the result is satisfactory, dub the outer vertical edge at one level with the stucco of the wall. This can be done with a stationery knife on the spot, or you can draw a line on the panel (with a pencil, thin marker, scratch it with something sharp) and then refine it with something convenient.
After removing, on the outer edge, we also drill holes for studs. Set the panel in place, take the foam, and bottom-up fill the gap. Too much foam and here – not good, because plastic can bend. Because fill in short portions, trying to fill as deep as possible.
On the vertical parts of the slopes, you can do it differently: on the ready-to-install panel on the far edge, which is wound up under the frame, apply foam before installation. (more…)