Although the gba website already contains many articles on the topic we continue to receive frequent questions about the best way to insulate a cathedral ceiling.
Easiest way to insulate cathedral ceiling.
The reason spray foam like icynene makes the most sense for your home s cathedral ceilings is that spray foam is able to expand up to 100 times its original size within second of application.
Icynene spray foam insulation and cathedral ceilings are the ideal combination.
As mentioned earlier cellulose has a natural density that is usually two to four times that of fiberglass.
One of the best options would be spray foam insulation here s why.
Nail 1 furring along every rafter side against the roof deck.
Compare wood and vinyl options and choose the one that best suits your budget and diy aspirations.
When fitting your cathedral ceiling insulation many people don t realize that you have to install a moisture control system.
Insulating an unvented cathedral ceiling.
Beadboard panels are an efficient economical way to get that popular tongue and groove porchy look to cover up an unattractive ceiling.
The foam can then expand into tiny cracks and holes that traditional insulation might not fit into thereby effectively air sealing your cathedral ceiling.
Cut and insert 1 or thicker high r foam insulation sheets r 8 per inch against the furring giving a 1 or greater air path between the insulation and the roof deck under the cathedral ceiling.
Seal the insulation or the ceiling surface below against air leakage.
Place the insulation between the rafters or below them.
Put the baffle between the joists starting where they join at the exterior wall plate.
Attach the baffles to the interior of the joists using a staple hammer and cover the wall plate area completely.
One of our favorite ideas for this material is covering popcorn ceiling with beadboard.
Use closed cell spray foam closed cell foam board extruded polystyrene such as dow styrofoam or foil faced iso board.
Here are four mistakes to look out for and avoid at all costs if you decide to diy your cathedral ceiling insulation.