I've knocked together a small bathroom & toilet. The toilet had a small square window, and the bathroom a deeper rectangular one. They're on the same wall, about 18 inches apart.
I want to enlarge the opening of the smaller window so that it is the same depth as the larger one, and then have two new uPVC windows fitted, as the differently sized windows look very odd from the inside.
The wall is of standard brick cavity construction. Is it OK to cut the face of the external bricks with an angle grinder (to get a neat edge) before splitting the unwanted part of the bricks out? How should I go about forming a cill (bridging the cavity)? I was thinking of taking out one additional course of bricks internally, and then replacing them, turned 90 degrees, so that their length spanned the cavity (I'll need to trim them up a bit), butting them up against the inside of the external wall with mortar. Is this acceptable?
Lastly, I was going to use expanding foam to seal off the open sides of the cavity, and then after the windows are in, plaster internally to make a neat job and finally fit MDF internal cills & decorate.
Is there a better way?
I want to enlarge the opening of the smaller window so that it is the same depth as the larger one, and then have two new uPVC windows fitted, as the differently sized windows look very odd from the inside.
The wall is of standard brick cavity construction. Is it OK to cut the face of the external bricks with an angle grinder (to get a neat edge) before splitting the unwanted part of the bricks out? How should I go about forming a cill (bridging the cavity)? I was thinking of taking out one additional course of bricks internally, and then replacing them, turned 90 degrees, so that their length spanned the cavity (I'll need to trim them up a bit), butting them up against the inside of the external wall with mortar. Is this acceptable?
Lastly, I was going to use expanding foam to seal off the open sides of the cavity, and then after the windows are in, plaster internally to make a neat job and finally fit MDF internal cills & decorate.
Is there a better way?