How do you insulate a closed in gazebo sitting on a deck?
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What type of insulation under an outdoor deck frame with 2x8s?
Eric Dalpe
Sept. 15, 2020Last updated: Sept. 22, 2020
I have a 11x17 feet 3 season gazebo fully enclose on a deck. Sitting on deck board and finish the inside with LVT. I want to insulate the floor. Though of Rockwool for 2x8 but cant find any would going with 2x6 will make a big difference? I though of covering the wool with 1" rigid board to close it off and limit rodent. I m in Quebec Canada so winters are cold.
The walls are aluminium, i though I could insulate them with 1.5 " rigid board and cover with 1/2" pine. Should I put a vapor barrier in between?
Thanks
Eric
你有几个问题，我会试着回答，但我也会有一些自己的问题。
Given that your gazebo is exposed all around, you have all surfaces to insulate – floor, walls, roof. I don’t think going from 7.5” to 5.5” thick ofRockwool insulationis a problem, the bigger concern I’d have is only having 1.5” in the walls. Any way you can thicken that? And are you planning to heat it constantly or is this something you would heat up for occasional use?
Typical construction techniques should apply though, so yes to a vapor barrier on the interior of the insulation before you do pine. And keep in mind thataluminum will be a thermal bridge and cause heat loss, so putting insulation between metal will reduce the performance even more.
在内部再加一层厚一点怎么样?我想知道你是否可以附上捆扎到目前的金属“螺柱”以某种方式提供一个钉表面。这样你就可以安装一个更厚的层，然后蒸汽屏障和捆扎和松。这有道理吗?And can you spare any space on the interior?
Hi Mike, thanks for the reply. This is a 3 season gazebo with 5 tempered glass doors and angle roof. The roof is made of pine, war paper and sheet metal panels. I wont isolate the roof. This is for occasional use and I have a Carbon Infrared heater.
I agree the 6 inch bat would work and will add 1" rigid board on top of the 2x8 studs. I Just hope the 1.5 inch of space left on the 2x8 (7 1/2") wont cause any problem or fall down on the rigid board. No vapor I read under the floor correct?
The walls are panel of aluminium and wood 2x4. I will have to cut the rigid board to insert between the horizontal 2x4. The walls have 1.5 " space. If I go 2" it could work but with the 1/2 " pine Im losing 1" of wall not a big deal I guess. So 2 inch foam, vapor barier than pine? Wish I could add a picture.
Thanks for your help
So here are some more thoughts Eric – If you aren’t insulating the roof then I wouldn’t bother going too crazy anywhere else. May as well do the walls with a bit of insulation since you plan to add pine anyway, but you’d lose a lot of heat through the ceiling. Warm air rises and with no insulation in the roof, the floor insulation won’t make a big difference, so certainly don’t concern yourself over the thickness I would say.
但是，也就是说，对于偶尔使用，特别是使用红外加热器(这是一种非常有效的方法，让人们在封闭的空间里保持温暖)，我不会太担心。Heating with electricity where there is clean energylike in Quebec makes a difference too, especially with an occasional use room like you are talking about. In your case, the carbon footprint of insulation as well as the cost of buying it starts to add up, so adding thick insulation in the floor won’t help you save money or energy I think.
我甚至可以大胆地说，在魁北克，一个偶尔使用的带有红外加热器的凉亭比篝火的碳足迹更低。这听起来有点像一个紧急的新冠肺炎社会化室，我说的对吗?Don’t lose sleep however you choose to do it.
Hi Mike, I just your reply I had no notification you did so.
I see your point here and yes its more to work outside for a few hours, kids doing homework, dinners when sunny.
Heated floors would of been the best but you think insulation wont do much. I saw somewhere to sandwitch the rockwool between 1.5 in of rigid board ( under the decking and over the 2x8 stud)?
I was planning to get the material tomorrow so dont want to spend $ for nothing.
我想用2x6的岩棉铺上OSB就可以了吧?在OSB之前有蒸汽吗?我认为乙烯基地板是作为一个蒸汽屏障。
The walls I will go 2 inch, vapor and pine.
The celling is all pine finish.
谢谢你的帮助。
Eric