Watching Home Free on TV. One of the teams was
assigned to insulate the attic in a Georgian Revival.
They were stapling batts in the roof rafters. I was brought
up to believe that you insulate rafters ONLY if attic was to
be occupied at least 90% of the time, and to insulate
just the attic deck(above the top floor ceilings).
Have things changed here in good ol 2015?
On Saturday, August 29, 2015 at 9:30:32 PM UTC-4, Ashton Crusher wrote:
Around here, new construction, the attic is still insulated the
usual way, regardless of AC, with insulation on the attic floor,
unless it's going to be a finished attic. It's obviously not the
greatest idea with AC eqpt in the attic. The AC ducts are typically
flex ones that have a couple of inches of insulation, but having the
air handler and all those ducts in a 120F attic has to be wasting
I wonder if he's on to something. Why not insulate at the rafters
and then again on the attic floor? Would seem to be a good idea for
houses with AC gear in the attic. I also wonder if you were going
to put down X inches of insulation, how putting half at the rafters,
half at the attic floor would compare to putting it all on the floor?
On Saturday, August 29, 2015 at 9:22:37 PM UTC-4, firstname.lastname@example.org wrote
If there is rafter insulation there should also be baffles to allow airflow
from the soffit vents to the roof vents, assuming those exist.
I know that since we had our roof redone with full soffit vents cut, a ridg
e vent added, and then a DIY baffle installation, my attic is much, much co
oler. We don't have rafter insulation, just joist bay insulation, so the ba
ffles are just for where the insulation goes down towards the soffits.
We use our crawl space attic for storage and it so much easier to be up the
re now that the new ventilation system is in place. I wonder if they also i
nsulated the access opening or staircase. I built a box from 1" foil faced
foam insulation to go over my pull down stairs.
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