Which will keep heat in better?

[schmiddlicous]

On the garage door side of my garage I have so uneven beams and filled it in with Fiberglass Instulation the best I could.. I would like to cover it up with one of these 2 products to give it more of a clean look... I would like it to be reflective and Keep heat in when I am using as space heater... Garage dont really get to hot in the summer so not to worried about keeping it out.... I am thinking about these 2 products because they can flex. Which one would be the better pick?


http://www.homedepot.com/p/Reflecti...-Insulation-with-Staple-Tab-ST16100/202851859

http://www.homedepot.com/p/Rmax-2-i...-Rigid-Foam-Insulation-Board-613010/100573703

 

[gregtwojeeps]

The rigid board will be easier to work with, better joints and be a better looking finished product. jmo

 

[schmiddlicous]

Which one would have better R value?

 

[gregtwojeeps]

Reflectix = R3.1 to R21 depending on the application it is used on. Reflectix has a site that explains how to get the different R values from their product such as how many layers used, joint construction, airspace etc. all which effect its R value of the final installation. I used it on some of my round metal HVAC ducts and really liked the way it works when using their foil tape. .

Rmax is straight up R-13. Being a rigid board suits best to box in beams once the beam has been stuffed with your batting, if I am understanding your project correctly. Good luck on your project !

 

[DC73]

Use the board.

The bubble wrap R-value stretches the limits of credibility. It doesn't measure up when tested in the real world. It's r-value claims are more than a bit of snake oil.

DC

 

[dfiler2]

Use the board.

The bubble wrap R-value stretches the limits of credibility. It doesn't measure up when tested in the real world. It's r-value claims are more than a bit of snake oil.

DC

^^^This. The bubble wrap does have some applications, wrapping duct work may be one, but as far as insulation goes it would be my last choice.