Bad loft conversion insulation advice please

just keep in mind it will never ever be a room it can only ever be a storage area so throwing money at it is fine for his own use but if he comes to sell it can not be converted to liveable accommodation without probably fully ripping out and starting again so dont ever think added value but extra work and wasted money
 
He only wants to use it for storage, but would rather be able to walk on floorboards rather than floorboards having insulation on top of them (mind you, that could be the cheapest solution), along the lines of what Old Duffer did in post 9, could he not get some sort of thermal board and simply attach it to the existing plasterboard?
 
could he not get some sort of thermal board and simply attach it to the existing plasterboard

Then he's heating the entire loft. For storage substitute the "mineral wool on the floor" with celotex with chipboard loft boards laid on top.
 
If you insulate the floor the loft will get very cold and therefore mouldy. You would have to add plenty of ventilation to outside and maybe a fan on a timer to blow air from in the corners. And ideally some dehumidifier or background heating.
 
At his house.

Here are more pics of the attic, loads of condensation on inside of both windows
 

Attachments

  • A38D7BF6-7792-4826-B5E1-936F31CE998B.jpeg
    A38D7BF6-7792-4826-B5E1-936F31CE998B.jpeg
    178.2 KB · Views: 59
  • 4211015F-266A-49A9-94C2-5F8D04146A21.jpeg
    4211015F-266A-49A9-94C2-5F8D04146A21.jpeg
    267.5 KB · Views: 59
  • 8E0D5EDD-9AC7-49BC-9978-A4995993A387.jpeg
    8E0D5EDD-9AC7-49BC-9978-A4995993A387.jpeg
    193.3 KB · Views: 60
  • C64687F9-1007-463C-9116-549337825296.jpeg
    C64687F9-1007-463C-9116-549337825296.jpeg
    209.9 KB · Views: 60
  • CE0AFF27-D554-4E00-9D8A-7AECE0974FC9.jpeg
    CE0AFF27-D554-4E00-9D8A-7AECE0974FC9.jpeg
    223.9 KB · Views: 65
  • 3CCA4232-EB74-4330-A9E3-F22F969EDCCC.jpeg
    3CCA4232-EB74-4330-A9E3-F22F969EDCCC.jpeg
    189.7 KB · Views: 59
  • 8E0E9B24-BBD5-4719-8D76-C9AB19698FD1.jpeg
    8E0E9B24-BBD5-4719-8D76-C9AB19698FD1.jpeg
    179 KB · Views: 66
  • 48931CCA-7503-4735-B8C8-5B553B49773E.jpeg
    48931CCA-7503-4735-B8C8-5B553B49773E.jpeg
    226.1 KB · Views: 56
  • 2B35F4DC-9EA7-45B8-AB28-933B7E0B08FE.jpeg
    2B35F4DC-9EA7-45B8-AB28-933B7E0B08FE.jpeg
    137.9 KB · Views: 54
Attached is a crude drawing showing the attic, the blue being the accessible part, and the red is behind the plasterboard.

I‘ve just drilled a couple of holes (green mark on pic) so I can see the attic floor behind, zero insulation.

There’s a date on the Velux windows saying 1992
 

Attachments

  • BE064E22-A4E5-46A1-867F-2B6E280B49DF.jpeg
    BE064E22-A4E5-46A1-867F-2B6E280B49DF.jpeg
    58.5 KB · Views: 58
At his house.

Here are more pics of the attic, loads of condensation on inside of both windows

If the stair is open to rest of the house, moisture from cooking, washing, bathing - will rise and condense out in the coldest parts, which are the windows.

I‘ve just drilled a couple of holes (green mark on pic) so I can see the attic floor behind, zero insulation.

Surprised you have had to drill holes to investigate - usually access panels are made each side, to gain access to the wings. Might it not be worthwhile to make some proper access panels, to insert insulation?
 
Back
Top