Hi Everyone,
I'm just about to place an order for some double-glazed UPVC french doors which will replace an existing window.
I'm reasonably confident doing the work and have replaced several windows before but had a question about measuring accurately for the new doors.
The issue is that there's a slate DPC on top of the brick course that the bottom of the door will rest on. My question is - do I measure to the top of the slate DPC and aim to install the doors on top of the slate or should i measure to the top of the bricks just below the DPC and when I install it, remove the slate and lay it straight onto the bricks? (marked A and B on the photo below) There's about a 20mm difference.
I know the UPVC will act as a DPC so it won't necessarily need the slate but didn't know what was best practice.
Thanks for any advice in advance (photos attached to make it clearer)
I'm just about to place an order for some double-glazed UPVC french doors which will replace an existing window.
I'm reasonably confident doing the work and have replaced several windows before but had a question about measuring accurately for the new doors.
The issue is that there's a slate DPC on top of the brick course that the bottom of the door will rest on. My question is - do I measure to the top of the slate DPC and aim to install the doors on top of the slate or should i measure to the top of the bricks just below the DPC and when I install it, remove the slate and lay it straight onto the bricks? (marked A and B on the photo below) There's about a 20mm difference.
I know the UPVC will act as a DPC so it won't necessarily need the slate but didn't know what was best practice.
Thanks for any advice in advance (photos attached to make it clearer)