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Forum topic by Florida Gramps posted 07-10-2018 12:39 AM 751 views 0 times favorited 13 replies Add to Favorites Watch
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Florida Gramps

12 posts in 1143 days


07-10-2018 12:39 AM

Topic tags/keywords: question

I have a 2 1/2 car garage with a partial attic over garage…7 foot standing area where pull down stairs access attic.
This attic has a floor and inadequate insulation. I am wondering is it worth the effort to empty the attic, rip put the flooring and significantly increase the insulation….it is 100+ up here in the summer

I know a split ac is the right solution but it is a bit pricey.

Any thoughts on how to soundproof the doors

-- Florida Gramps


13 replies so far

View jonah's profile

jonah

1837 posts in 3415 days


#1 posted 07-10-2018 02:00 AM

It’s definitely worth it to insulate the attic properly. You don’t necessarily have to rip up the floor. You can just lay fiberglass batts down on top of the floor. It’s not maximally efficient when done that way, but it certainly works. You’ll want to insulate around the ladder too. They have those upside down styrofoam tubs that go over the ladder that work okay, and they’re not too expensive.

View woodbutcherbynight's profile

woodbutcherbynight

5545 posts in 2525 days


#2 posted 07-10-2018 02:05 AM

Someone here posted about using insulate board and using silver HVAC tape to attach it.

-- Live to tell the stories, they sound better that way.

View TungOil's profile

TungOil

1006 posts in 612 days


#3 posted 07-11-2018 02:31 AM

If it is completely sealed top and bottom, have an insulation contractor come and blow insulation in. They do it through a series of tiny holes in the drywall- easy to repair.

A mini-split will pay for itself in a few years in FL.

Roxul makes a sound deafening insulation product.

-- The optimist says "the glass is half full". The pessimist says "the glass is half empty". The engineer says "the glass is twice as big as it needs to be"

View clin's profile

clin

919 posts in 1113 days


#4 posted 07-11-2018 03:30 AM

Unless you want to store stuff in the attic space, I agree with the suggestions to just blow some insulation in there. You can do it yourself. I know Home Depot will rent you the blower for free when you buy X amount of insulation. It’s a two man job and at least for a garage space, you’ll spend more time going back and forth to HD than blowing.

Properly insulating should always be the first step in making a space more comfortable. Keeps heat out in summer and keeps it in during the winter (not an issue in Florida).

Having said that, every area has different issues, so make sure whatever you do is appropriate for where you live. Mostly I’m thinking of moisture issues.

I have a mini-split in my garage converted to a shop, it’s wonderful to have a shop at exactly the temperature I want. They are super efficient, but they are a bit spendy. Keep in mind, a mini-split is best at just running and keeping a space conditioned. If your garage is still mostly a garage with cars going in and out, you might want something larger so you can cool the space down more quickly.

The main thing about sound proofing is sealing cracks. Sounds moves most easily through air, so any crack is a big deal. For the door from the garage into your house, make sure it is weather stripped and the threshold and sweep seal. If you’re trying to keep the noise down for the neighbors, again, good weather seals on the big garage doors.

Mass and sound dampening are next. The door to the house should already be a solid, fire rated door. If not, replace it with one. In the case of your large garage door, insulating it will help a lot. You can glue or otherwise attach foam board to it. Be careful not to add to much weight, else you’ll need to increase the pull of the garage door spring(s).

There are of course very elaborate ways to sound proof. The main one being room within a room, but I’m sure that’s more than you are interested in.

-- Clin

View msinc's profile

msinc

497 posts in 620 days


#5 posted 07-11-2018 12:25 PM

Personally, I would insulate my a$$ in a distance kind of way from Florida…it’s just too ridiculous hot. But, lacking that I would blow in the attic because that is a much more filling, covering, better working insulation for attic space. Most houses could benefit greatly by blowing in another 6-8 inches in their attic no matter what they have up there now. Next I would go to Lowe’s and get their big GE 220v {single phase} window unit for around $500. I just put one in my 30×30 shop and it takes her down quick and doesn’t run much. I gets ridiculous here like Florida in the dead middle of summer too. Don’t worry, I ain’t stayin’ here either!!!!

View woodbutcherbynight's profile

woodbutcherbynight

5545 posts in 2525 days


#6 posted 07-11-2018 04:08 PM

Check out this post, read commend #31. Interesting idea for a portable split unit to fit under the garage door. Also shows how someone insulated the garage door at post #36

http://lumberjocks.com/topics/279305

-- Live to tell the stories, they sound better that way.

View bc4393's profile

bc4393

73 posts in 1259 days


#7 posted 07-12-2018 02:18 AM

I just bought a vornado shop fan and it works pretty well cooling me off, specially if I just aim it where I’m working. It’s in the 90’s and humid as hell here in Houston and it makes it so I can actually work in the shop. Throw on a moisture wicking shirt and I can be out there all day. Before the fan I’d be dripping and about to pass out after an hour.

View Rayne's profile

Rayne

1025 posts in 1656 days


#8 posted 07-12-2018 02:27 AM

I am a Floridian and I pulled up what little flooring I had up in my attic (strictly for storage) to lay down batt insulation and let an insulation company blow in the rest of the attic that was unfinished. I’ve always had the motto from Mike Holmes to do it right the first time. It was a lot of work, but I feel like it was well worth it (mind you I did this towards the end of winter, so it wasn’t quite blistering at the time). Once the attic was complete, the mini split went in and now enjoy a very comfortable 79 degrees and my A/C bill barely changed. Garage door was already insulated a while back so I’m sure that makes a difference as well.

View John Smith's profile

John Smith

1308 posts in 279 days


#9 posted 07-12-2018 11:34 AM

but – it’s a WET heat !!

.

.

-- some people are like a Slinky - - - pretty much good for nothing. But still make you smile when you push them down a flight of stairs.

View rwe2156's profile

rwe2156

3069 posts in 1597 days


#10 posted 07-12-2018 02:59 PM

Guys, didn’t he say there was adequate insulation in attic? Don’t understand why you want add more.

That being said, as a fellow Floridian, I can tell you I’ve seen attic temps >140°. If you add more, go with R30. Also, if you have a gable end over your garage, a thermostatically controlled exhaust fan will help a lot.

I suggest looking at a large window AC you will need a 240V circuit.

You can insulate the garage door with rigid foam board. I would use screws to attach rather than tape.

-- Everything is a prototype thats why its one of a kind!!

View jonah's profile

jonah

1837 posts in 3415 days


#11 posted 07-12-2018 08:16 PM

“This attic has a floor and inadequate insulation.”

In my experience, when people in the south talk about “adequate” insulation, they’re mostly off by about half, so double whatever they say.

View clin's profile

clin

919 posts in 1113 days


#12 posted 07-12-2018 08:16 PM



Guys, didn t he say there was adequate insulation in attic? Don t understand why you want add more.

That being said, as a fellow Floridian, I can tell you I ve seen attic temps >140°. If you add more, go with R30. Also, if you have a gable end over your garage, a thermostatically controlled exhaust fan will help a lot.

I suggest looking at a large window AC you will need a 240V circuit.

You can insulate the garage door with rigid foam board. I would use screws to attach rather than tape.

- rwe2156

He said he had “inadequate” insulation.

-- Clin

View JRsgarage's profile

JRsgarage

287 posts in 626 days


#13 posted 07-13-2018 08:40 PM

I just installed, https://www.homedepot.com/p/Garage-Door-Insulation-Kit-8-Pieces-Garage-Door-Insulation-Kit-8-pcs/203630159 and it seem to help with both sound and temps. I didn’t have to use any tape or adhesive due to lips on garage door panels..they are in there solid. I needed three packs.

-- Two is One, One is None

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