A carpenter recently told me that I could buy that pink fiberglass
insulation and just lay it down (pink side down) on the floor of my
attic since I never go up there and don't use the attic for anything,
rather than paying someone to tear up the floor and put the insulation
down and then put the floor back.
That sounds too good to be true, but I guess I have to hear it from
someone else in order to believe that it's truly a bad idea.
My only issue would be that "Pink side down"
If it is the usual attic insulation, it will be pink on all six sides
and it will not matter what side is down. If it has one side with a vapor
barrier, then that side towards the warm surface. In the colder parts of
the world and the US that means down towards the living area. In some more
tropical areas including some of the south of the US, that means the other
In any case, yes it can be that easy.
Actually, HE didn't say 'pink side down'; I just added that in there
because I assumed that's the way I'd do it. Is it better to get the
kind with the vapor barrier or the kind that is pink all over? Is one
better than the other? I've only seen the kind with the vapor barrier.
Suggest you talk to some one else as so far no one is telling you the
right way the walls and floor have to be done and you don,t push it in
as compressed insulation is of no use. I do this for a living and if
you do it right this area will give you years of of enjoyment do it
wrong you form a night mareJoseph Meehan wrote:
That's not so. Of the six sides, if you put it end side down, the
insulation will reach to the roof and 5 or 10 feet higher.
That's if you unroll it. If you don't, it will just sit like a coil
on the floor.
If you put it edge side down, it might fall over, but if you use
enough pieces so that it can lean against itself, she'll have 24 more
inches of insulation. That should be enough.
I guess it is a living space or closed-not vented to the outside attic.
You could put insulation down but I would consider the fiberglass
wrapped in plastic to keep dust down. If you have Ac or forced air heat
you still could pull fiberglass into your house. Foamboard would
eliminate that issue.
You can certainly do it that way, but as someone else indicated, use the
plastic wrapped batts for better effect.
As an alternative you should be able to insulate under the floor using
blown in insulation and removing only a few strategically located boards
if it's an old T&G floor, or drilling strategic holes as you would for a
normal wall cavity.
Did the carpenter say there might be insulation under the "floor"
already? Is this a full or partially covered area and can you see
insulation already? I've never seen an entire "attic" completely
covered with flooring, unless it was converted into a living space.
Once I did have an attic with a stairway and door access, but still
the attic was only partially covered with flooring (wood)...
I would ask the carpenter a few more questions about his conclusions.
There is no insulation under the floor. This attic is completely
covered with flooring. I think the person who used to own this house
used the attic, probably not in the summer though as it would be too
hot. It's carpeted too (really thin, cheap carpet). It's a walk-up
attic with windows. I once considered using it as some kind of room,
but this house is too big for me as it is. I have no need for another
I'm very happy to hear that I can really just lay down the insulation!
That means I can do it myself! How exciting!
If it was mine I would have insulation blown in under the
flooring...but anyway... my only problem with your idea is this.....
I wonder if the outer edges of the floor...where it meets the roof
might need for the floor to be cut and have insulation stuffed into the
area where the joist bay meets the roof... know what I mean.... under
the flooring at the very outer edges... it might be neccesary to
insulate there just as precation to keep any cold air from leaking in
between the flooring and the ceiling.
just a thought.
A whole floored attic of storage space...making me drool....~:>
Can't I just shove some insulation in those corners really tight so
that part of it folds up into the roof part? Maybe it won't be
perfect, but it will be a hell of a lot better than NO INSULATION,
which is what I had LAST WINTER!! I really don't want to pull up the
floor if I don't have to. . .
I would think this would be worse with no insulation. Snow falls on
a roof and melts, and the water runs down and freezes over the eaves,
with less attic heat to keep it melted.
Insulation under the roof would improve this, and insulation in the attic
floor with ventilation above would be better still.
Hey Nick! This is EXACTLY what happens in the winter!! Except no
interior flooding, but there is terrible freezing outdoors at the
bottom of the roof. I had no idea this was related to the fact that I
had no insulation!
Perhaps it would be best if I hired a professional to insulate my
attic. I mean, it sounds like there is a lot going on here and I can't
possibly ask the right questions because I am clueless about the
interconnectedness of all of these things. . .
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