hello everyone thank you for tuning in to our YouTube channel save green here
and today I wanted to follow up on a video that we did some time ago on foam
insulation but before we go on with that I wanted to tell you if you are tuning
in to our channel for the first time please kindly click that subscribe
button down below it will help us promote our channel and also support
what we do so in that previous video I mentioned we go over the difference
between open cell and closed cell foam insulation but staying on that subject
with regards to foam insulation we wanted to show you the effects of foam
insulation on your traditional home so most likely you have your insulation in
your home on the attic floor just like this now the problem with that is let's
say on a July or August day if your outside temperature is let's say in the
90s if I can just get the ink here let's try this one so for the sake of argument
let's say in your climate in July or August the outside temperature is 95
degrees ok now you probably won't believe this but inside your attic it
can be anywhere from 120 to 140 degrees Fahrenheit during July August maybe even
longer depending where you are so in some places in the southern states you
might get longer temperatures like that you might get them from May all the way
until September or October so what what's happening is you're trying to
cool your house and the summertime let's say around 75 degrees so the temperature
difference between this here and this here is so great because you're allowing
the heat to come in inside your attic and then all you have
is the insulation on the attic floor to try to stop that that heat from going
this way okay so wouldn't it be smarter if instead we got rid of that insulation
and let's just erase that in there and instead we insulated here okay so now
and folks if you don't believe your attic gets between 120 to 140 in the
summertime just leave your car out in the Sun on any one of those months with
all the windows up and see what happens I guarantee you your car's going to be
120 hundred and thirty degrees so the same thing is happening inside your
attic now when it's 95 degrees outside just like you see here and you have this
type of foam insulation sprayed on the underside of the roof decking and this
is your attic floor from my experience going up attics that have this type of
insulation the temperature in the attic is about 85 degrees when outside it's 95
sometimes it's even 80 degrees now if you're trying to cool your house at 75
degrees and your attic is 80 degrees that's only a 5 degree difference that
your air conditioner has to contend with as far as keeping it 75 in the house but
like I mentioned before if your insulation is here and your attic is 140
all that heats going down I guarantee you this insulation that's down here
traditional let's say fiberglass bats or blown cellulose or even blown fiberglass
is not gonna do there's not going to perform as well
as stopping the heat from getting inside the Attic to begin with and that's what
the insulation that's applied over on the underside of the roof decking does
for you so if you haven't considered spray foam insulation I hope this little
illustration helps you see why it might make sense for you to do it because
where you place the insulation is a big deal and being that spray foam also
seals not only insulates but seals is another reason why you want to do it now
if you're going to completely encapsulate your entire attic talk to
your HVAC contractor because it is necessary to bring in make up air so you
don't make your house completely too tight where you don't have any air
exchanges going on so you might want to do that
talk to your HVAC contractor get a fresh make up air so you're bringing air from
the outside in and you're filtering it before it cycles through your HVAC
system if it sounds a little bit too complicated for you I will try to make
another video in the future just let me know in the comments below if you would
like to see a video on fresh make up air and I will try to explain that as well
for you but as far as spray foam insulation versus traditional insulation
you can see where spray foam does benefit you more than having the
insulation down here at the bottom because it is actually sprayed right
here at the top so your attic in many cases will just be around 80 degrees
Fahrenheit that's it so you've got only a 5 degree temperature difference that's
what you want when it comes to saving money on your cooling costs so if you
have any questions or any comments please post them below in the comment
section I'm very good about replying to your comments or questions when you do
post them so please do that and I will try to get them get to them as soon as
possible if you haven't subscribed yet please kindly hit that subscribe button
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and supporting our YouTube channel thank you once again for watching you all have
a great day