help with illogical gas bills/useage

dogshome

Hi Macabc - Despite the loft & brick cavity insulation, if your chalet bungalow is pre 1990, there could still be aproblem with insulation I know, I live in One The joists which run across your loft may be supported by the ends resting on top of the ground floors brick walls on opposite sides, so the only insulation at each end could be some Roof Felt and Tiles - One clue to this is the house feeling a lot colder than it should in moderate temperatures when there is a high wind blowing directly on the front or back. You can check by lifting a floor board directly under the Dormer window - If the space between joists passes under the stud wall it's likely that there is no insulation over the ceiling that's below the tiles that are in front of the Dormer, and the wind is free to rip through gap between the joists, from one end of the house to other. The fix is to remove the tiles below the Dormer, Insulate the ceiling areas below them with a thick insulating board, I used celotex but there are plenty of others, and cut blocks of the same board to tightly fill the gap between the joists where they pass under the stud wall - Tackling the insulation on the Dormer walls means removing the outer covering -PVC planks/Wood/Tiles?- so you can get at the cavity beneath
Best of Luck

macabc

Hi dogshome.

thanks for that. you are correct in what you say. However, i have rebuilt/reclad the dormers (the decision maker wanted cedar) and as part of the process re membraned and insulated (kingspan).

There are areas that i can insulate further in the roof (around the dormer projections in the eaves and on top of the angular falls between the ceiling os the upper floor and the floor of the upper floor, if this makes sense?).

All the eaves are well insulated (inc in the roof below the dormers).

Still seems a huge amount of useage by comparison though, you think?

Maybe its warm jumpers and thermals eh:-)