Replacing compacted insulation in the loft?

[barnettgs]

My loft had extra layer of insulation installed around 10 years ago and not long later, I had boarded less than 1/3 of the attic floor.

What I did was to cut the insulation between the joists, squeezed them in and screw the board down.

However, I have just found out it can affect the effectiveness of the insulation cover and that I have noticed two rooms seems a bit cooler than the rest of the rooms so I am planning to remove the board but will these insulation need to be replaced as they were already compacted?

 

[barnettgs]

Nevermind, I went ahead removing some boarding area and also moved about the insulation to rise them up and it seemed to hold the height fine, maybe not quite as high as uncovered insulation so they seemed ok. See how it goes and maybe I could top it up with extra roll later on if needed.