When float and seting window reviels how do I ensure i get the margin dead strait level with the frame.?

Question

im finding it hard to square sand and cement strait by hand is their a way to make a jig to make them perfict .

Answer 1

one the oldest sayings in the building trade is ..if it looks right ..then it is right ...you need to fix your angle beads to the same angle as the existing window ..you fix them either with mortar or even better galvanised nails ..and fix them by cutting them in to the exact angle as the window ..then when they are fixed and you render the sides in two coat render you use a square piece of wood to rule excess off ..mark the side with a pencil line and keep thumb on that mark as you rule off ..its not hard !

Answer 2

Make a gauge rod, cut a piece of wood to the size you want, set your angle bead plumb to this, job done.