Fitting some new windows and have a few questions regarding window specification / fitting, hopefully someone can offer some advice.
1) Which is more secure / the preferred lock; double cam OR shootbolt?
2) The house has stone cills, I would think it is best to use new frames with no cills added. When I look at the neighbouring properties these all have UPVC cills on top of the stone cills. What is best practice?
3) The conventional method for measuring windows from my research shows take 3 measurements both horizontally and vertically of the opening from the outside, take the smallest and subtract 10mm for your frame size. The only issue I have here is that when I look at the brickwork, currently the UPVC frames are sitting behind the brickwork by say 5mm each side. so obviously this measurement method did not apply. What is the best approach in this instance as there is a void area all around. Stick to the standard measurement procedure or have slightly oversized, to sit almost flush with the facing brickwork?
1) Which is more secure / the preferred lock; double cam OR shootbolt?
2) The house has stone cills, I would think it is best to use new frames with no cills added. When I look at the neighbouring properties these all have UPVC cills on top of the stone cills. What is best practice?
3) The conventional method for measuring windows from my research shows take 3 measurements both horizontally and vertically of the opening from the outside, take the smallest and subtract 10mm for your frame size. The only issue I have here is that when I look at the brickwork, currently the UPVC frames are sitting behind the brickwork by say 5mm each side. so obviously this measurement method did not apply. What is the best approach in this instance as there is a void area all around. Stick to the standard measurement procedure or have slightly oversized, to sit almost flush with the facing brickwork?
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