Is a conservatory considered a room with a tiled roof???

[ejs1983]

Hi
I've been looking to get an ultraframe livin roof on our conservatory. One company has told me that with the roof it will be considered a room so the patio doors to it can be changed or removed. However another company has told me it won't be classed as a room and so the doors can't be changed. I can't find any info from ultraframe or just searching online. Does anyone have any idea?????
Thanks

[user1471549018]

I did reply yesterday but it seems to have vanished! I had an ultraframe brochure that specified which conservatories/rooms were done to be building regs compliant and which were classed as conservatories. Any that are compliant you can remove the doors.