I have an early 1900's house which we have fully refurbished including insulating the external walls.
The loft has been cleared, rewired and hoovered out and now i need to insulate it. I want to board the loft for storage.
The roof joists are 100mm and unless i get a large return from an investment I dont really want to go to the bother of cross joisting/loft legs.
With that in mind the easy option is 100mm loft quilt then board on top.
In reality what am i loosing by only having 100mm of insulation in the loft. From what i have read the 1st 50mm does most of the work, the 2nd 50mm less and then everything over that is greatly reduced. Is that the case.
Bearing in mind teh house was originally solid un-insulated walls with 20mm max loft insulation we will be greatly bettering no matter what we go with but was just curious how you all see loft insulation and the benefits above 100mm quilt.
The loft has been cleared, rewired and hoovered out and now i need to insulate it. I want to board the loft for storage.
The roof joists are 100mm and unless i get a large return from an investment I dont really want to go to the bother of cross joisting/loft legs.
With that in mind the easy option is 100mm loft quilt then board on top.
In reality what am i loosing by only having 100mm of insulation in the loft. From what i have read the 1st 50mm does most of the work, the 2nd 50mm less and then everything over that is greatly reduced. Is that the case.
Bearing in mind teh house was originally solid un-insulated walls with 20mm max loft insulation we will be greatly bettering no matter what we go with but was just curious how you all see loft insulation and the benefits above 100mm quilt.