Insulation alternatives

[fishmonger]

Can some body tell me if there is alternatives to sandwich panel insulating freezer walls. The temperature is set on -18C. What about tilt up concrete walls, has any one tried any thing like this before.
:confused:
Cheers Ian

[US Iceman]

The tilt-up concrete panels are more expensive although they do offer a more appealing finish than standard metal finishes.

One item which I feel does offer a dramatic incentive is the tilt-up walls offer a much higher mass, than prefab metal panels (these could be considered a low mass construction).

The higher mass tends to retard the heat flow into the cold storage area. For example, by the time the afternoon sun begins to set the heat will not begin to enter the cold area until later in the night. By that time the night air begins to cool off.

In effect, the high mass walls tend to stabilize the heat flow into the cold storage and can reduce the impact to the coolingload.

[fishmonger]

US Iceman, thanks for your reply,
Security is a huge problem with sandwich panel walls, all it takes is an axe, or similar, and criminals are inside helping them selves to all the expensive items. Is there an R value for tilt up concrete, or other wall materials, compared to sandwich panel for use as freezer walls.
I appreciate your help
Ian

[US Iceman]

Hi fishmonger,

Here are some links you may want to review.


http://www.cement.org/buildings/tiltup_splash.asp

http://www.thermomass.com/downloads/files/THERMOMASS_Cold_Storage.pdf

http://www.thermomass.com/overview/overview.htm

http://www.tilt-up.org/basics/insulation.htm

http://www.concretebuildings.org/TU-%20insulated%20panels.html

http://www.buildingproductexpert.co.uk/ExpandedEntries/Catalogues/108/108570/8570cat6.pdf
(this is a big file at ~ 4 MB)

http://www.nnecpa.org/index2.php?option=com_content&do_pdf=1&id=260

From the data I have seen the possible R values go up to 36, but I suspect this is probably like other insulated panels. The more you pay for, the better the R value.

I wish I could find some more information for you right now, but this is the first time I have really researched this subject (beyond my initial comments).

I hope this helps you.

Best regards,
US Iceman

PS. Here is link that offers some additional technical info. I found it on a UK site.
http://csm-uk.co.uk/images/stories/vitromass/salesdownloads/TM-Technical%20Brochure%20English.pdf