Roxul definitely isn't easier to work with.
There are some tips and tricks for the pink stuff. It should be way easier to cut around things with it.
I found that the roxul would crumble, or sometimes a panel would break in half if I was too rough with it. Not to mention, it dulls blades about 10 times faster than fibreglass.
my garage is too sealed and I am having humidity issues, lots of frost build up on the inside of the garage doors and windows.
my dad suggested putting in a bathroom exhaust fan to vent the humid air, but I would think I'd need to have in intake to bring in air as well?
any recommendations to help the issue?
2007 Mazda 3 GS sedan - Arctic White / Tan cloth - SOLD
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If you draw air out without replenishing it you could also creat a space without enough oxygen which is a hazard
If it really is that sealed...
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Why don’t you just run a dehumidifier
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It actually sounds like you have a lot of the warm humid air from your house escaping into your garage and condensing on the cold surfaces.
Is your garage attached to your house? Is there a door to access the garage from the house? @rajin929
If you do have a man door that shares access with the garage the weather stripping could be pooched or you may just have a crappy builders grade insulated door that doesn't do crap... If it leaks the warm humid air from your house into your garage you will see lots of condensation.
thanks for the responses gents!
A heated garage would be cool! I think I'll try out some other options first before investing in a heater
I wouldn't say it's air tight, but the house is only a few years old. The garage doors have the weatherstripping around the door jambs and the lower rubber seal on the door is in good shape, there's no gaps or daylight coming in around the doors.
I was actually thinking of digging up the dehumidifier in the basement when I get home and run it this evening. Curious to see how many buckets of water I'll need to dump
Never thought of warmer humid air coming in. Garage is attached with a door to the house, and it's the builder grade
Dehumidifier would probably freeze up in an unheated garage. Remember, they work by making the coil cooler than the surrounding air to condense moisture out of them.
That's near on impossible, a bath fan can't create a vacuum environment, it would either draw air in from leaky areas or simply not be able to overcome the pressure differential and air wouldn't be pulled out.
More often it's the heat from a warm vehicle getting parked inside and snow dripping off that creates humidity. If anything, try to clean off as much snow as you can and/or let the vehicle cool down before putting it away inside.
Honestly, it's pretty normal to get condensation on the windows in a garage, unless the walls are perpetually wet/dripping, I wouldn't worry too much about it.
Doesn’t have to be a complete vacuum environment to be a health hazard @SomeGuy
But you guys continue the conversation, I know nothing.
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Well that's the way it was done for decades...
When we built my Dad's garage; mind you completely separate from the house, it was well insulated but definitely not as 'airtight' as rajin's seems to be, we placed a small vent high on one wall.
Not a large vent but a small finned vent and the garage stays dry, cold maybe but dry. Nothing a heater couldn't fix if and when you have to do work in there, which is where my Dads woodworking shop is.
Its worked well for over 30 years.
_3
yup, we're in a detached house so 1 side of the double garage is an exterior wall.
That's where my dad was suggesting to install a fan to move some air outside. The flaps on the vent would stay closed when the fan is not running so should keep the cold air out (knowing the garage will be colder regardless)
No doubt parking a warm car with some snow underneath is contributing to the problem.
We always get out and knock as much snow out of the wheel wells as possible in the driveway before driving into the garage.
The windows on the garage door look like the inside of a chest freezer lol
Last edited by rajin929; 01-03-2018 at 09:23 AM.
Getting a better man door would help with this but I somewhat agree with @SomeGuy too.
However, the amount of moisture the cold air can hold is minuscule and leads me to think there is additional warm moist air being mixed in to the garage.
If the man door to the garage is original to the house, upgrading to a better insulated door with better weather stripping will help and also reduce your utility bills for heating and AC. In my experience most doors and windows that are 10+ years old suck when compared to the new designs, mainly due to better weather stripping and less thermal bridging. @rajin929
Warm moist air? Yes, heat from the vehicle and melting snow.
Rajin - do you park inside every night? Try not parking in the garage, bet the moisture problems go away pretty quick. If so, the answer is what I said previously...clean the vehicle off better before putting it away and let it cool down a bit first.
In the short-term until you get the fan installed, keep the garage door partially open for a few hours - an few inches is enough. As mentioned it’s most likely the melting snow from the cars.
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Any air from the house is humidified unless he is living in a house with rads and base board heaters. Any air from the inside of the house will have more humidity in it from biological factors and the HVAC system.
Do what @SomeGuy says and see if the condensation goes away. See if it's from the car or from something else. @rajin929
thanks gents! appreciate the comments and suggestions!
+1, the Mrs. is home today so the car's out in the driveway and the doors are cracked a few inches.
Yup, every night as that's the car our son travels in. Will certainly clean the car better and let it cool down moving forward
House is only a few years old, so the door to the house does have the magnetic weather stripping. But I wouldn't discount it yet, I think the car and lack of ventilation is the culprit
House shopping is the worst.
We sold our house a few days after listing it, for quite a bit above asking. But the town we're moving to is tiny a d there's almost nothing on the market. We are going to be homeless because we can't find a house for sale that isn't a money pit.
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Can you move to a different area nearby?
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