hey guys welcome back to the channel so if you've been following me
on my diy videos recently i installed a mini split from my garage a couple months back so
today what i'm going to do is insulate the garage doors behind me so that way we keep the cool in
here during the summer and during the winter we keep the heat in the garage so stay tuned
so today what we're going to be installing is this 8x4 foam board that i bought down at home depot
while down there i also picked up some of this reflective like bubble wrap radiant barrier to add
on to the installation so for the regular double car garage and the single door i have over here i
ended up needing six sheets of these eight by four these sheets right here are about an inch thick
and when i add this on here it adds about another quarter inch which is exactly what
those garage door kits that you could buy pre-cut come in they're basically an inch and a quarter
ideally you would need an inch and a half to fill the gap on here here in florida they sell the
one inch thick one and then after that is the two inch they don't have anything in between so i had
to settle for this combination to fill the gap all the material i bought here to do these two
doors ended up costing about 180 plus tax which is exactly what buying the kits would have cost
me that are pre-cut already except those kits only come like with the regular white foam they don't
have the radiant barrier like we're going to have here so how we're going to be installing it today
since i live in florida i wanted to create kind of a radiant barrier once i put it on here there's a
small air gap because of the texture in the door so what i'm going to do is i'm going to put the
reflective side which is this side over here as you can see over here i'm going to put it against
the garage door to create that kind of air gap and do a radiant barrier so it can actually reflect
some of the heat off of the board the foam itself will act as an insulation in addition when i put
this bubble wrap on the back side that will also create kind of a radiant barrier to keep the heat
on the inside of the garage during the winter time the foam will be doing most of the work but the
radiant barrier and the reflectiveness will do a little bit more during the summer to reflect some
of the heat back onto the metal door and out the key really to insulate a garage door though is to
fill all the gaps you gotta make sure the foam fills all these steel gaps right here where the
air and the heat will come through and convect through the other convection would just go into
this board and this board will actually hold the heat into the insulation here if you guys are in
a northern climate where you actually want to keep the heat in your garage during the winter time you
probably want to install the reflective end here on the inside so that way the heat on the inside
reflects off of there and it stays in the space and it keeps the cold out on the back side as an
fyi when i bought these i actually ordered them on homedepot.com for store pickup and curbside pickup
just because i was by myself and i really didn't want to lug six of these boards through the store
by myself even on one of those cart things so the guys actually took it out to my van
and i took the risk of trying to fit into my van knowing that it should fit an 8x4 board in there
i didn't take any of the seats out and i was able to fit six of these above my seat pushed
it through a top but it covered like over my head and everything but it got into the car
so the to install this is going to be pretty easy i just got to measure all these things make sure i
cut it perfectly in a straight line and just wedge it into each one of these squares or rectangles so
one thing in florida here we have these supports here required for each panel due to hurricane code
but the good thing for these installations is it's going to act as a retainer to keep these boards
onto the panel without falling out up north i don't think it's required to have these so your
garage door might just be the solid steel back here without these supports so in order to install
it on those you probably have to wedge it in there either glue it or somehow keep it in there so it
doesn't fall out especially when you operate your door all the time so i'm gonna have to go ahead
just remove some of these things and start cutting and installing it on all these panels
so we got about 98 99 degrees on the uninsulated side then we go to the insulated side and we got
75 so that's like a 24 25 degree delta between the uninsulated and the insulated
side that's just the top panel insulator right now with the sun directly on the door
all right so we got two panels done already and it did take a little bit of time especially
around here where these bolts are like this whole thing had to come apart when i took that rail out
so you need to put that back in just to kind of hold it and then right here
you have these hinges that need to kind of come out or at least move a little bit so you can tuck
the foam and the radiant barrier under there until you can get it to fit and everything's
a slide over here up top i already put the rail back in there and everything's holding nicely up
there i'm gonna go ahead and put all this rail back here and continue on with the rest of this
so overall the big door wasn't that hard to get together the pain in the ass part is the
middle section of my door is separated in two so i had to cut that in half and then fit those all
in there on the single car door it was much easier because of those four foot wide panels
kind of fit in there i had to trim about an inch an inch and a half off each side to kind of fit
in here because it's 47 inches from end to end on here versus 48 like on the big doors and on the
standard board that comes here other than that the only other thing that was kind of hard was
getting all the panels and getting this radiant barrier behind the screws that are left behind
like up here that aren't removed when we take out this bars but that's really no big deal i just
put one of those putty knives in there or like a shim and just squeeze it in there hey guys thanks
for watching all the way to the end of this video if you found it useful in doing your own project
give it a thumbs up if you haven't subscribed to your channel already go ahead and subscribe
to your channel turn on the notifications to see every time i upload a video remember for
all these different diy projects whether it's on the car on the house or in the garage if i
can do it you guys can do it i want to thank you for watching and i'll talk to you guys next time