Replacing large sliding windows
Hi all,
Previous renovate forum member here, currently in the process of removing a very old and bowed sliding aluminium window (2.8m x 1.6m)
I have measured up and ready to order a new double glazed timber single pane window to replace the old unit.
Have a few questions though:-
1. It's going into a brick veneer house, how would I flash the window?
Are you supposed to flash around the framing, or just attach plastic flashing to underside of timber window.
If attached under window, how does it drain away if the brickwork is already there?
My understanding is flashing needs to be embedded in the brickwork with drain holes, but I don't want to remove then relay a few rows of bricks.
2. How wide does the new window need to be, how far does it extend passed the brickwork and brick sill?
3. Do you only secure the window to framing on the sides?
4. Could the window sit flush on the bottom framing if it's level, or should it be packed?
5. Is around 5mm gap all around good enough when measuring up?
6. Do you fill gaps with slow expanding foam?
Sorry lots of questions as I have never replaced a large window.
Cheers.