What does that two element spray on foam cost for about 1,000 sf? Want to
shoot the underside of the roof over my containers for insulation, water
shedding, and reflection of heat.

Steve

It might not be a great idea. A municipal stadium (near Newport News, VA, if
memory serves) had foam insulation on their roof, and the local fauna
(seagulls) ripped it to shreds. It had, unfortunately, an attractive aroma.
Fish oil in the paint, I believe, was the particular issue.

If this is a simple shed roof, with air circulation over and under, it won't
benefit much from insulation anyhow. And, if there's no circulation underneath,
it'll trap water and cause container rust (or worse, harbor skeeters).

A google search for spray foam insulation will turn up a list of companies
selling the stuff, there are some options for slow rise (for filling walls),
fire retardant, and I saw one anti-microbial. For the standard stuff prices
seem to be $565-600 for a kit to do 600 board feet (600 square feet one inch
thick, about R6). I checked on this a few years ago when I was thinking of
doing the "ceiling" of my crawlspace and the prices were exactly the same
but the crash put those kinds of spending plans on hold, sigh, so I can't
recommend a particular vendor. FWIW, www.tigerfoam.com seems to have decent
instructions :-).

-----
Regards,
Carl Ijames
"Steve B" wrote in message
...

What does that two element spray on foam cost for about 1,000 sf? Want to
shoot the underside of the roof over my containers for insulation, water
shedding, and reflection of heat.

Steve

On Sun, 11 Sep 2011 14:37:54 -0400, "Carl Ijames"
wrote:

A google search for spray foam insulation will turn up a list of companies
selling the stuff, there are some options for slow rise (for filling walls),
fire retardant, and I saw one anti-microbial. For the standard stuff prices
seem to be $565-600 for a kit to do 600 board feet (600 square feet one inch
thick, about R6). I checked on this a few years ago when I was thinking of
doing the "ceiling" of my crawlspace and the prices were exactly the same
but the crash put those kinds of spending plans on hold, sigh, so I can't
recommend a particular vendor. FWIW, www.tigerfoam.com seems to have decent
instructions :-).

This sobered me up. I don't think I want to chance a bad foam job.
Dead fish smell, eh? Lovely! http://goo.gl/IDB9x
Amine sensitivity isn't harmful? (from other links)

Pass!

--
The reasonable man adapts himself to the world; the unreasonable
one persists in trying to adapt the world to himself. Therefore,
all progress depends on the unreasonable man.
-- George Bernard Shaw

A google search for spray foam insulation will turn up a list of
companies selling the stuff, there are some options for slow rise (for
filling walls), fire retardant, and I saw one anti-microbial. For the
standard stuff prices seem to be $565-600 for a kit to do 600 board
feet (600 square feet one inch thick, about R6). I checked on this a
few years ago when I was thinking of doing the "ceiling" of my
crawlspace and the prices were exactly the same but the crash put
those kinds of spending plans on hold, sigh, so I can't recommend a
particular vendor. FWIW, www.tigerfoam.com seems to have decent


I called a local insulation company about six months ago to request a
price on spray-on insulating my crawl space. They said if it was "clear
and unimpeded", they could insulate to R19 for $1.00-$1.35 per square
foot (based on actual material utilization). I even asked about the
clearance (22"), and they said that was not an impediment.

When I think about how hard I work to hang insulation, and how nasty job
it is, that seems pretty inexpensive.

LLoyd

On Sun, 11 Sep 2011 14:15:24 -0500, "Lloyd E. Sponenburgh"
lloydspinsidemindspring.com wrote:


A google search for spray foam insulation will turn up a list of
companies selling the stuff, there are some options for slow rise (for
filling walls), fire retardant, and I saw one anti-microbial. For the
standard stuff prices seem to be $565-600 for a kit to do 600 board
feet (600 square feet one inch thick, about R6). I checked on this a
few years ago when I was thinking of doing the "ceiling" of my
crawlspace and the prices were exactly the same but the crash put
those kinds of spending plans on hold, sigh, so I can't recommend a
particular vendor. FWIW, www.tigerfoam.com seems to have decent


I called a local insulation company about six months ago to request a
price on spray-on insulating my crawl space. They said if it was "clear
and unimpeded", they could insulate to R19 for $1.00-$1.35 per square
foot (based on actual material utilization). I even asked about the
clearance (22"), and they said that was not an impediment.

When I think about how hard I work to hang insulation, and how nasty job
it is, that seems pretty inexpensive.

Last year, I paid about $4k for borate treatment, a vapor barrier, and
1,500s/f of R-30 Knauf Ecobatt in my crawlspace. They also drilled the
exterior walls and sprayed in borates in the outer wall cavities.

It was worth it. Savings look to be a few hundred a year, but the
comfort factor is wonderful. And the company belonged to my barter
club, so most of the money was barter I had saved up. Yeah, it sure
beat getting down there and doing it yourself.

I recommend doing the borates, too, to keep the termites at bay
forever. It's well worth it. My last home had $6,500 worth of termite
damage.

--
The reasonable man adapts himself to the world; the unreasonable
one persists in trying to adapt the world to himself. Therefore,
all progress depends on the unreasonable man.
-- George Bernard Shaw

That's about 1/3rd the cost just to buy the spray foam to diy!

-----
Regards,
Carl Ijames
"Lloyd E. Sponenburgh" wrote in message
. 3.70...


A google search for spray foam insulation will turn up a list of
companies selling the stuff, there are some options for slow rise (for
filling walls), fire retardant, and I saw one anti-microbial. For the
standard stuff prices seem to be $565-600 for a kit to do 600 board
feet (600 square feet one inch thick, about R6). I checked on this a
few years ago when I was thinking of doing the "ceiling" of my
crawlspace and the prices were exactly the same but the crash put
those kinds of spending plans on hold, sigh, so I can't recommend a
particular vendor. FWIW, www.tigerfoam.com seems to have decent


I called a local insulation company about six months ago to request a
price on spray-on insulating my crawl space. They said if it was "clear
and unimpeded", they could insulate to R19 for $1.00-$1.35 per square
foot (based on actual material utilization). I even asked about the
clearance (22"), and they said that was not an impediment.

When I think about how hard I work to hang insulation, and how nasty job
it is, that seems pretty inexpensive.

LLoyd

"Carl Ijames" fired this volley in
:

That's about 1/3rd the cost just to buy the spray foam to diy!


FWIW, they use a bulk tank mixer apparatus on a trailer, and apparently can
do this quite inexpensively. Their labor is almost nada... they do about
50sq.ft. per minute standing up, and I imagine they hire agile little
Mexican guys (down here) to crawl around under houses on their backs.

They even gave me some references to check out.

LLoyd

"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message
. 3.70...
"Carl Ijames" fired this volley in
:

That's about 1/3rd the cost just to buy the spray foam to diy!


FWIW, they use a bulk tank mixer apparatus on a trailer, and apparently
can
do this quite inexpensively. Their labor is almost nada... they do about
50sq.ft. per minute standing up, and I imagine they hire agile little
Mexican guys (down here) to crawl around under houses on their backs.

They even gave me some references to check out.

LLoyd

I worked for a refrigeration company in Southern Louisiana that sold walk in
coolers and freezers. They made them out of wood frames, metal skins, and a
two element expanding foam shot into the molds. Hydraulic presses kept the
pieces from bulging. A couple of times, mistakes were made, and the
pressure blew the hydraulic presses from their floor anchorings.

They also offered the services of spraying the two element foam onto
existing structures and refrigeration buildings, at a cost much less than
replacement, particularly in older structures. It added a high r value
also, which could convert a struggling box and system into an efficient one
at a low cost. This foam skinned over with a hard shell, adding a water
barrier to its benefits. One of the elements was methyl ethyl ketone, some
fairly nasty stuff when aerosolized into the air, or even just skin contact.
That was in 1976, probably before all this tree hugger falderal.

They had long wands that looked like a pressure washing rig, just two pipes
going up to the spray nozzle. Aim, spray, and let it dry. They could do
enormous areas in a very short time. Trick was to know how much it was
going to expand, and spraying the right amount on there the first time. A
one coat perfect spray was better than a seamed two coat spray.
Overspraying just added a little weight, but more r value, and less of a
profit.

Steve

On Sun, 11 Sep 2011 12:07:43 -0700, Larry Jaques
wrote:

On Sun, 11 Sep 2011 14:37:54 -0400, "Carl Ijames"
wrote:

A google search for spray foam insulation will turn up a list of companies
selling the stuff, there are some options for slow rise (for filling walls),
fire retardant, and I saw one anti-microbial. For the standard stuff prices
seem to be $565-600 for a kit to do 600 board feet (600 square feet one inch
thick, about R6). I checked on this a few years ago when I was thinking of
doing the "ceiling" of my crawlspace and the prices were exactly the same
but the crash put those kinds of spending plans on hold, sigh, so I can't
recommend a particular vendor. FWIW, www.tigerfoam.com seems to have decent
instructions :-).

This sobered me up. I don't think I want to chance a bad foam job.
Dead fish smell, eh? Lovely! http://goo.gl/IDB9x
Amine sensitivity isn't harmful? (from other links)

Pass!
Have an experienced contractor do the job - the DIY kit is NOT the
same. The good stuff is sprayed and I believe there is heat involved -
not sure if it is an exothermic reaction only, or if the stuff is
heated as part of the application process. My Dad's last two houses
both had spray foam - both done by the same local contractor. There
are two big well-known contactors in the area that likely do 80% or
more of the spray foam insulation in the area.

wrote:

On Sun, 11 Sep 2011 12:07:43 -0700, Larry Jaques
wrote:

On Sun, 11 Sep 2011 14:37:54 -0400, "Carl Ijames"
wrote:

A google search for spray foam insulation will turn up a list of companies
selling the stuff, there are some options for slow rise (for filling walls),
fire retardant, and I saw one anti-microbial. For the standard stuff prices
seem to be $565-600 for a kit to do 600 board feet (600 square feet one inch
thick, about R6). I checked on this a few years ago when I was thinking of
doing the "ceiling" of my crawlspace and the prices were exactly the same
but the crash put those kinds of spending plans on hold, sigh, so I can't
recommend a particular vendor. FWIW, www.tigerfoam.com seems to have decent
instructions :-).

This sobered me up. I don't think I want to chance a bad foam job.
Dead fish smell, eh? Lovely! http://goo.gl/IDB9x
Amine sensitivity isn't harmful? (from other links)

Pass!
Have an experienced contractor do the job - the DIY kit is NOT the
same. The good stuff is sprayed and I believe there is heat involved -
not sure if it is an exothermic reaction only, or if the stuff is
heated as part of the application process. My Dad's last two houses
both had spray foam - both done by the same local contractor. There
are two big well-known contactors in the area that likely do 80% or
more of the spray foam insulation in the area.


Microdyne had a contractor foam their three 40,000 square foot
buildings, along with the two enclosed 50 foot connectors. The
contractor brought several large trailer loads of 55 gallon drums of the
two part foam, and worked for over a week to apply it. They had a few
leaks where they stopped for each day and had to cut notches and fill
them with more foam. The chemicals were photo degradable, and a lot of
the employees took them home for recycling containers. Shipping had the
giant can opener to cut the tops out of the drums without leaving a
sharp edge.


--
You can't have a sense of humor, if you have no sense.