2x4 Attic Joists Upgrade Insulation

Seal up door and window cracks with caulk cold air seeping into your home has a detrimental effect on your home s heat envelope.

2x4 attic joists upgrade insulation.

Installing attic insulation is one of the most valuable ways to save energy and keep your home warmer. If done right blown in cellulose insulation adds a lot of r value in all areas without doing too much work in regards to packing it in like batted insulation. Look for water stains on the roof sheathing or damp or moldy spots on attic joists and existing insulation as a clue to where leaks might be. If your attic joists won t bear the weight necessary to finish out a living space but the engineer cleared them to support floor decking for light storage you can install inch plywood or.

Put insulation meant for 2x4 framed walls between the joists which will be the same height as the joists then lay a perpendicular layer of attic insulation maybe r 30 on top of them. Add thick insulation batts to the attic. Box out light fixtures. Attic 17 basement 30 ceiling insulation 24 crawlspace 10 exterior sheathing 7 exterior wall foundation 2 floor 17 garage 7 metal building 2.

Option 2 has the benefit of preventing any thermal bridging via the ceiling joists. For any option installing those 2 x 2 furring strips really would be a waste unless the area is very unlevel. Unless you re using mineral wool insulation or your fixtures are rated safe for contact with any type of insulation don t allow the material to touch or cover recessed cans or.