Fish Room

[intern1]

Finally starting on my fish room but before I get the fish in there need to get the insulation set up

The fish room is an ABSCO single garage dimensions 3.70mW x 6.00mD x 2.98mH

I was thinking of using the absco shed blanket for the roof insulation and batting on the sides. Just wanted to know if anyone has used this product for insulation or any other ideas

http://blog.cheapsheds.com.au/absco-shed-blanket-insulate-your-garden-shed/

thanks

John

[intern1]

Note sure if anyone has used Earthwool before?

http://www.knaufinsulation.com.au/en-au/insulation/earthwool-home-insulation/diy-multi-use-insulation-roll.aspx

[pat williamson]

I used earthwool in the walls and ceiling it works pretty well

[intern1]

What type of garage was this for pat?

[vadnappa]

I'm a plasterer and have done insulation install plenty of times as well as on my own fish room. Most products should have a rating R 1.0 or R 2.5 etc the higher the rating the better. I have used earthwool and like it but that's just because it's not itchy to install. If you can go, as high as possible atleast in the ceiling as that's where you lose the most heat and get the most when you don't want it. And glass windows are shockers so when you don't need them you can squeeze a tight fitting piece of polystyrene in them so it can be removed.

If you are installing yourself don't be fooled by the common mistake of stuffing as much insulation as you can into a cavity that's not how it works. Basically Air is the insulator and the batts just trap air. When you squish them in they don't hold as much air and don't function aswell. You want them to sit comfortably in the space without gaps so if the area is bigger than a batt rip another one up and fill around it.

[vadnappa]

My fish room is a double colour bond garage, I lowered the ceiling and built out the walls for bigger cavities and used R5.0 throughout, but I'm in melbourne so have greater natural temperature fluctuations then those who live further north

[intern1]

i was thinking only to install using absco shed blanket or equivalent for the roof, vadnappa how did you install on your roof did you lower the ceiling through a false ceiling

[vadnappa]

Yes, I used battens and lowered the ceiling so it had a cavity which the R5 batts fit, I can't remember what it was exactly 150mm approximately. Ive seen the shed blankets but not sure what there specs are

[DFishkeeper]

I used a 3 inch shed blanket on the roof of my fishroom when constructing the shed around 7 years ago.

The shed blanket was installed on the roof frame before the roofing panels were fixed, giving a nice tight fit, with the insulated side facing up and the foil side on the shed interior. I also had simple foil insulation fitted to the wall frames before the panels were fitted, then lined the inside of the walls with 60mm high density foam.

I am really happy with the wall insulation. The high density foam comes in really big sheets that can be cut to size to fit neatly between the C channels for a nice snug fit.

However, the problem I have found with the shed blanket on the roof is condensation. Not on the inside of the foil side of the shed blanket, but in winter when the shed is being heated by an air-con unit, condensation forms on the inside of the metal roof panels and falls onto the shed blanket, saturating the insulation side of it and gradually "rotting" the interior foil side in some locations which seem to be hot spots for the water collection. I have had to repair some areas of the interior foil lining with pieces of foil lining, and if you don't seal the joins between the sheets of shed blanket, water can run through the gaps and leak into your shed also.

If I had my time over, I would look for another option for the roof rather than the shed blanket.

Cheers, Doug