Mission Bay attic insulation | Cardinal

Mission Bay is at the corner of Glades Road and State Road 7. Ten sections: single-family houses, townhouses, and condos. The shopping corner on State Road 7 is ZIP 33498. A house and a condo in the same community are not the same attic. There is no Mission Bay address on the Google listing. The listing is 4263 NW 1st Ave, Boca Raton, FL 33431.

Long runs are where a blown install goes wrong if the crew only fills what they can see from the decking by the hatch. The far eave, past the air handler and the crossover, is the bay that stays thin. R-38 is an even depth, not an average of a pile and a bare spot.

Four inches of settled fiberglass is about R-9. The gap to R-38 is real depth, on the order of twelve inches of new fiberglass at R-2.5 per inch, less if some of the old layer is still doing work and is counted honestly. Cellulose at about R-3.6 per inch shortens that stack. It also weighs more. The ceiling decides.

Bath fans in these houses often terminate in the attic. That is moisture on the underside of a hot roof deck. The fan has to leave the building, or it does not get buried. Burying a fan that dumps inside the attic is how the new insulation gets wet from below.

The soffit on a long Mission Bay eave is a lot of intake. Every bay that gets filled needs a baffle, or the hose closes the vent and the ridge has nothing to pull. We do not stuff the soffit to steal a few inches of R-value.

Dry fill is a top-up after the seal. Wet fill from a tile leak is a removal. The leak gets fixed before either product goes back down. Insulation does not repair a roof.

The long Mission Bay attic usually has a crossover duct lying on the old batts. The blow has to go under that duct and past it, not pile against it and stop. A duct that is uninsulated and lying in a vented attic is losing the air the handler just paid to cool. We do not wrap ducts as a separate trade. We also do not bury an uninsulated duct and pretend the ceiling insulation fixed it. If the duct is in the way of the depth, say so. The bid changes.

Markers in a long attic are useless if they are all next to the hatch. One near the opening, one past the crossover, one at the far bedroom. One per 300 square feet, in inches, facing the path you walk. That is the check before the hatch goes back down.

The Google listing is Cardinal Insulation, Cardinal Insulation of Boca Raton LLC, insulation contractor, at 4263 NW 1st Ave, Boca Raton, FL 33431. Blown-in insulation is the first service. Call (561) 654-7698. This neighborhood is not a second pin.