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Insulating an uneven wall Eigenvector 11-16-2006
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Posted by bowgus on November 17, 2006, 10:55 am



> One other thing, is it easier to work with insulation with a pair of
> scissors or a cutter? I'm using a cutter, but I notice that while the paper
> is cut evenly, the insulation is typically raggedy. The pink stuff isn't
> the best medium for a box cutter.

I get myself a flat surface like a sheet of plywood, a utility knife
and say a 1x3. Just compress the fiberglass with the 1x3 and use it as
a straight edge for cutting. Usually 2 passes and yer done. As for
fitting the fiberglass, just cut it up as required to fill the space
... no need to pack it that much, it stays put. and if yoo're putting
vapor barrier overtop it won't go anywhere. I myself have never use the
glass with the paper ... just plain glass ... and vapor barrier.


Posted by Steve Barker LT on November 17, 2006, 11:16 am


Something even better (IMO). I cut a slot about 30" long in a sheet of
plywood on saw horses. Lay the insulation over the slot where you want it
cut. Push down with your 1x3 ( I used a 2x4) and cut with your ginsu (or
any other sharp bread type knife) through the slot. Works great!

--
Steve Barker




>
>> One other thing, is it easier to work with insulation with a pair of
>> scissors or a cutter? I'm using a cutter, but I notice that while the
>> paper
>> is cut evenly, the insulation is typically raggedy. The pink stuff isn't
>> the best medium for a box cutter.
>
> I get myself a flat surface like a sheet of plywood, a utility knife
> and say a 1x3. Just compress the fiberglass with the 1x3 and use it as
> a straight edge for cutting. Usually 2 passes and yer done. As for
> fitting the fiberglass, just cut it up as required to fill the space
> ... no need to pack it that much, it stays put. and if yoo're putting
> vapor barrier overtop it won't go anywhere. I myself have never use the
> glass with the paper ... just plain glass ... and vapor barrier.
>



Posted by Steve Barker LT on November 17, 2006, 11:00 am


Find the company in your area that does the "sticky" blown cellulose. It's
the only way to fly. More "R" per inch, and it only cost me $200 more than
doing it myself in my 1400 sq. ft.

--
Steve Barker



> Now that I have all the wiring done in my basement I'm installing
> insulation in the walls. It's pretty straightforward but there are a
> couple of things I wanted to know.
>
> None of the studs in my walls are evenly spaced. I think one section is
> actually a standard space apart ( whatever that is, 24" or something), the
> rest are too close together and one is about 1.5 times wider than normal.
> This is due to the cross beam placement in the ceiling I suspose. How do
> I know it's too close together - when installing the insulation I have to
> bunch it up in the space. Is that a bad thing to do? Right now its all
> scrunched up in there, nothing too tight, but definitely compressed to
> some degree.
>
> When working insulation around boxes, should I cut the insulation short of
> the box, then mold a bottom piece of insulation to fit around the box, and
> continue down the wall? I have a notion of just shoving it in there, but
> I've been warned about hotspots by doing that.
>
> Lastly, in some sections I have romex running down the stud from the
> ceiling to outlet boxes and such. Should I do anything with the
> insulation along the stud where the Romex is routed?
>
> One other thing, is it easier to work with insulation with a pair of
> scissors or a cutter? I'm using a cutter, but I notice that while the
> paper is cut evenly, the insulation is typically raggedy. The pink stuff
> isn't the best medium for a box cutter.
>



Posted by Steve Barker LT on November 17, 2006, 11:05 am


Here's the website of the company that supplied the product my contractor
used.

http://www.centralfiber.com/cellins.html

--
Steve Barker


> Now that I have all the wiring done in my basement I'm installing
> insulation in the walls. It's pretty straightforward but there are a
> couple of things I wanted to know.
>
> None of the studs in my walls are evenly spaced. I think one section is
> actually a standard space apart ( whatever that is, 24" or something), the
> rest are too close together and one is about 1.5 times wider than normal.
> This is due to the cross beam placement in the ceiling I suspose. How do
> I know it's too close together - when installing the insulation I have to
> bunch it up in the space. Is that a bad thing to do? Right now its all
> scrunched up in there, nothing too tight, but definitely compressed to
> some degree.
>
> When working insulation around boxes, should I cut the insulation short of
> the box, then mold a bottom piece of insulation to fit around the box, and
> continue down the wall? I have a notion of just shoving it in there, but
> I've been warned about hotspots by doing that.
>
> Lastly, in some sections I have romex running down the stud from the
> ceiling to outlet boxes and such. Should I do anything with the
> insulation along the stud where the Romex is routed?
>
> One other thing, is it easier to work with insulation with a pair of
> scissors or a cutter? I'm using a cutter, but I notice that while the
> paper is cut evenly, the insulation is typically raggedy. The pink stuff
> isn't the best medium for a box cutter.
>



Posted by on November 17, 2006, 5:01 pm


Hedge shears work great if you sharpen them first.
Eigenvector wrote:
> Now that I have all the wiring done in my basement I'm installing insulation
> in the walls. It's pretty straightforward but there are a couple of things
> I wanted to know.
>
> None of the studs in my walls are evenly spaced. I think one section is
> actually a standard space apart ( whatever that is, 24" or something), the
> rest are too close together and one is about 1.5 times wider than normal.
> This is due to the cross beam placement in the ceiling I suspose. How do I
> know it's too close together - when installing the insulation I have to
> bunch it up in the space. Is that a bad thing to do? Right now its all
> scrunched up in there, nothing too tight, but definitely compressed to some
> degree.
>
> When working insulation around boxes, should I cut the insulation short of
> the box, then mold a bottom piece of insulation to fit around the box, and
> continue down the wall? I have a notion of just shoving it in there, but
> I've been warned about hotspots by doing that.
>
> Lastly, in some sections I have romex running down the stud from the ceiling
> to outlet boxes and such. Should I do anything with the insulation along
> the stud where the Romex is routed?
>
> One other thing, is it easier to work with insulation with a pair of
> scissors or a cutter? I'm using a cutter, but I notice that while the paper
> is cut evenly, the insulation is typically raggedy. The pink stuff isn't
> the best medium for a box cutter.


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