We have a lift conversion in a house we bought in October 2022, The house was built in 1901.
There is a slight draft that comes through from hatch doors that are already there.
I have no idea when the roof was last checked and it was only visually checked from outside by the surveyor during the buying process.
Would we need to replace the roof, can insulation or something be added behind the existing plasterboard/ walls that are there?
Is there anything that can be done to help us keep the heat in the room, as ventilation doesn't appear to be an issue.
If so, what kind of work would needed and what kind of cost are we looking at?
Are you a tradesperson and able to answer this question?
Possibly no felt on /if slate also back fill on underside which is mortar has possible failed /crumbling to dust .this normally reduces draft .recommend to remove slate re baton /re felt put slate back on
Hi, by the sound of it this is the original roof, if so then the roof would have been back pointed back in the day with lime mortar and not felt to prevent draft but over the years especially built in 1901 the back pointing drops off and leaves you with nothing but the tiles/slate.
This can be insulated from the inside but depending what condition the roof is in it would probably be worth just having the roof stripped felted battened and re-tiled or slated as the roof will have sèen its day rather than go to the expense of the insulation rout. If it's boarded inside aswell then it would mean taking down the boards to insulate the roof (I'm assuming you mean boarded to the roof spars) insulation could be added from the outside once the roof is stripped if this is what you want. My advice would be to have it re-roofed. It's hard to give an idea of cost without actually seeing the property or knowing the condition of tiles or slate etc and also the size.
Hope this helps
Regards John Harrison
Answered23 January 2023
0
Anonymous user
If the roof void was not insulated between the plasterboard / felt membrane when the loft conversion was done,the tiles and batton will need to be removed, insulation introduced then felt and baton installed. If the tiles are in good condition they can be reused to lower the cost significantly.
In regards to cost, there is such a wide range of variables as most roofs are bespoke. I would recommend having a couple of roofing specialists come take a look
