Double Layer Attic Insulation

Both can be added to uninsulated attics or layered over existing material.

Double layer attic insulation.

Loose fill or batt the common term for blanket insulation. Double layer of insulation vapor barrier i am converting my attic into storage space and in the next few years hope to convert it to a living space. I have access to some metal insulation panel s. Also it is an unfinished extra room.

Roll out the second layer so it installs perpendicular to the attic floor joists and the existing insulation between them. It could also be that the upper layer is not well adhered to the bottom layer and they. Insulation radiant and vapor barriers does doubling insulation layer double r value ok. Or to achieve an r 60ish level i want to double layer the insulation if possible.

A couple of different layers will keep a person warmer than one big single layer especially in one s attic. With that said would i roll an r 19 on top of existing. Improper installation can damage attic framing promote mold. Normally r 13 or r 19 insulation is installed between the ceiling joists in the direction of the joists and then another layer of insulation usually r 30 is applied perpendicular to the initial layer on top of the first.

In other words i see pink. A tip for doubling up on attic insulation. I have 2x8 floor joists and replaced the loose fill fiberglass insulation with 2 layers of comfort therm batt insulation. I want to cover the exposed insulation with plywood on the floor of my attic.

I am trying to build a dwarf wall and build a conservatory. The insulation is with facing against the inside. I want to cover the insulation with a thin layer of plywood or paneling on the walls of the stairway going up to the attic.