Can you board over loft insulation?
You can, but not by laying boards straight on the joists. That squashes the insulation. A raised floor is the answer.
The problem with flat boards
Joists are much shallower than the depth of insulation you want. Boards laid on them press the insulation down, and squashed insulation keeps far less heat in.
The raised answer
Short legs fixed to the joists lift the boards above the full depth of insulation. You keep the warmth below and get a storage floor above.
How much to board
Usually a path from the hatch and a deck for storage. The rest of the loft stays open.
Common questions
Will a raised floor hold my boxes?
Yes, for normal household storage.
Can I do it myself?
Many people do, but take care not to squash the insulation or cut trusses.
Find out what your loft needs, in plain words
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