A: Yes, but to comply with building codes, all foam plastics must be covered with a 15 minute thermal barrier. Gypsum board, ½” thick is a common covering.
Can foam board insulation be left exposed?
When exposed outdoors, foam board insulation can see damage from the Sun's ultraviolet (UV) rays. ... Tests have shown that these laminated boards can withstand UV ray damage for a reasonably long time. That said, it's still advisable to cover any foam board insulation exposed to the Sun within 30-60 days at the most.Oct 13, 2020
Does rigid foam insulation need to be covered in crawl space?
Q. I plan to install rigid foam insulation in a crawlspace. As far as I know, most types of rigid foam insulation can't be left exposed but need to be covered with a layer of drywall for fire resistance.
How long can foam board be exposed?
Tests have shown that these laminated boards can withstand UV ray damage for a reasonably long time. That said, it's still advisable to cover any foam board insulation exposed to the Sun within 30-60 days at the most. On most projects, that's more than enough time to finish the exterior walls.Oct 13, 2020
Does rigid foam board need to be covered?
Rigid foam insulation, whether it is expanded or extruded polystyrene, does have to be covered if it is installed in the interior of a building. ... Because this type of insulation is made from plastic, it is combustible and may give off highly toxic fumes when burning.Jan 8, 2011
Can you leave rigid insulation exposed?
As far as I know, most types of rigid foam insulation can't be left exposed, but need to be covered with a layer of drywall for fire resistance.
Can you cover foam board insulation?
When renovating a bathroom foam board insulation can be installed behind the shower or bath walls. Once the foam board is in place it can be covered with waterproof concrete board or specially treated sheet rock. These coverings will ensure a good long life for the foam insulation by keeping moisture from its surface.Jan 22, 2010
What do you cover foam board with?
Once the foam board is in place it can be covered with waterproof concrete board or specially treated sheet rock. These coverings will ensure a good long life for the foam insulation by keeping moisture from its surface.Jan 22, 2010