Revisions log for question
What density should be fiberglass fleece for the ceiling?

I accidentally bought a 50 gauge fiberglass fleece (instead of a 25 gauge) for the ceiling. Can you advise on the ceiling will hold or it is better to change to a fiberglass fleece density of 25. Another question – is it better to prime the ceiling diluted adhesive or primer?

The ceiling of concrete slabs plastered and putty, small cracks in the joints.

• ceiling
• renovation