How To Install Insulation In Bci Floor Joists

Trim pieces of fiberglass insulation using a utility knife so the pieces fit into joist bays along the rim joist.

How to install insulation in bci floor joists.

Installing roll insulation in ceiling of basement which is under floors of living space my basement is heated but a smaller amount than up in living space usually 66 68 upstairs and 58 60 at the same time in basement my question is about the kraft paper facing i think it should face the basement because of any moisture in basement. Bci joists are specially constructed i joists with flanges made from strong versa lam laminated veneer lumber with oriented stranded board webs and approved waterproof structural adhesives providing outstanding strength and durability. I joist is more consistent in size and shape than traditional floor joists. Start at one edge of the crawlspace and install the insulation between the floor joists.

Gain access to the crawl space or basement of the home to install the r 19 insulation between the floor joists. If there is already insulation between the joists increase the r value by installing unfaced roll insulation right on top. The insulation should fit snugly against the subfloor and between the joists. If your attic floor has no insulation install faced batts or faced rolls between each joist with the moisture barrier facing down against the drywall or plaster ceiling below.

Wide flanges provide a larger gluing and nailing surface for floor and roof sheathing. It is important to secure insulation and cover it with a vapor barrier in order to prevent moisture and the mold that often follows close behind. And this video shares the insight that i attribute to the lo. If the crawl space is ventilated which is ideal because it aids in the elimination of moisture then fiberglass insulation can be easily installed under the subfloor between the floor joists.

Make sure each run contacts the insulation you installed at the header band joists. I joists can be ordered with depth up to 16 inches allowing their usage on greater spans. The floor joists are all fastened to the rim joist which runs along the. A recent job forced me to think of a new affordable way to install floor insulation from above.

If using faced insulation keep the paper vapor retarder facing up and against the subfloor.