If your attic insulation covers your joists and is distributed evenly you probably have enough.
Putting up attic ceiling joists.
To prevent sag in 2x6 s and strengthen at same time you could secure lengths of stainless steel or galvanized cable attach at each end of individual ceiling joists have cable go over a one or two spreaders or strut projecting down from the underside of the ceiling joist maybe 12 14 or so as not to lose too much headroom these could.
Installing styrofoam ceiling tiles is one of the easiest ways to change an ugly ceiling into a beautiful one.
R value is a measure of insulation s ability to resist heat flow.
The higher the r value the better the thermal performance of the insulation.
Use a zippered insulated tent to keep the enclosure draft free attic tent at 7 attic cover insulator 120.
Sistering installing new larger joists next to the existing ones is one way to bring your attic floor up to code.
The ceiling tiles attach directly to the existing ceiling using an adhesive.
Affix rigid foam insulation to the attic side of the hatch or door.
Insulation levels are specified by r value.
Pull down stair or ladder.
How to put insulation in a ceiling before drywall.
Addition of engineered i joists.
The existing ceiling joists are 2x6s clear spanning about 11 feet 3 inches.
In the case of 2x6 joists you can pair them up with additional 2x6 joists by nailing them together side by side.
Positioning the new joist adjacent to the existing preserves precious ceiling but it does come with some potential complications.
If you don t have an attic however there is.
If you have an attic there are quick ways to insulate the ceiling from above after drywalling it.
Attic hatch or door.
Sistering is the process of adding a new joist next to each existing joist.
The recommended level for most attics.
But if it s framed traditionally with big lumber rafters the roof can stay in place.
If you see a complicated framework of 2x4s held together with perforated metal plates your roof is framed with trusses.
How to vault a ceiling.
How much should i add.
First head to the attic.
If the attic joists are not adequate one way to strengthen the floor for live loads is to sister the old joists.
The beauty is that there are a number of different patterns available and they are not expensive.
Depending on your attic structure an engineer may recommend the installation of lvls between the existing joists to bring the floor structure up to code.
You ll have to remove the entire roof structure to vault the ceilings.
I need to convert an attic to livable space with minimal disruption to first floor habitation.