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Thread: Insulating the shed
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21st March 2012, 12:03 PM #46.
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What about lining the floor of your shed with concrete slabs and grouting the edges with cement? The shed floor will then definitely be higher than the slab and water will not be able to come into the shed.
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21st March 2012, 03:45 PM #47Senior Member
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I've got a stratco shed similar to yours, and it leaks too. Funny that.
For flashing to work I think you'd have to run it from the inside of the external wall, and either stick it down to the concrete somehow, or run it out over the edge of the slab. If yours is like mine it has tangs holding the bottom of the wall panels onto the floor frame, so you'd have to run the flashing under the floor frame section (so everything that's Stratco sits on top of the flashing).
This may be a bit late considering you've got the wall lining done. I'm thinking of jacking mine up and putting some 3x4 under the walls to give it some extra head height, and installing flashing at the same time. Then I might think about insulating the roof - mine roof's too low to use any more head room with insulation.
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21st March 2012, 04:33 PM #48Intermediate Member
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I was thinking maybe put some kind of 45 degree angle steel strapping on the concrete edge and the wall of the shed and just trim some colorbond to length and tek screw it on so it overlaps the pad a little. I think if you cut the colorbond at the right angle the valleys would sit nearly enough flush to the walls to silicone them up nicely?
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21st March 2012, 10:17 PM #49
Re: Insulating the shed
OK what about four posts and a roof over the shed with a good overhang? Gutters on the shed with down pipes to take the bulk of the water away? External walls tucked under the roof and sloping out past the slab, could be gal iron and set up to double as a wood store. Don't give up.
Michael
Wood Butcher
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22nd March 2012, 02:11 PM #50
I got an email back from one of the glue companies. There is a waterproofing solution apparently. First I have to remove the silicone and Sika Boom from the affected side of the shed. Then use Gripset Cemseal and Fix or Gripset Prep Coat and Additive mixed to a mortar consistency and applied to 20mm thickness on the join between the slab and shed. This apparently will seal it properly. I am not going to scream "Eureka" just yet! When the weather finally dries up I will try it and then wait for rain again to see if it works.
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23rd March 2012, 08:04 PM #51
Good to hear that's there is is solution. What are the cost involved with this product?
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24th March 2012, 05:15 PM #52
Christos
I have followed the instructions provided by Gripset.
First, I scrapped away all the silicone and other rubbish from the outside base of the shed and then washed and scrubbed the slab outside and the first few inches of the shed wall with acetone.
Next a slurry of Gripset Prep Coat and sand and cement (goes a blue colour) brushed on the slab outside the shed and a couple of inches up the wall of the shed. I let that dry for a couple of hours. The dry product was really sticking to the metal and concrete.
Finally, a firm mixture of sand and cement with Gripset Prep Coat as the wetting agent. I then applied this over the outside base of the shed and the slab as a fillet at a 45 degree angle. They recommended a minimum thickness of 2cm, however, mine will be bit thicker. Its currently setting so only time will tell if it works. If not, I'll raise the slab height inside the shed but that is major surgery and unfortunately wont stop water getting into the insulation unless I cut a couple of inches from the bottom of the lining boards and build up a dam with the concrete.
THE COST SO FAR - From Bunnings
4 litres of Gripset Prep Coat - $49-00
Sand and cement mixture in a premixed bag - $7-50 for 9kg
I have only done one side of the shed (with a bit left over) but if the other sides need doing it will take a total of 3 bags of the cement mixture and 2 tubs of the Prep Coat for all 4 sides.
The alternative product recommended by Gripset was Cemseal but only for the final firm mixture with the cement and sand. It is $69 a 4 litre bucket which I wasn't prepared to spend in case this doesn't work. However, their tech said Prep Coat would do the job equally as well. As you can imagine I am waiting to see what will happen when it rains. If it is going to work we are now guaranteed a drought
Enjoy China
Greg
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25th March 2012, 09:22 PM #53
Let's hope that this gets time to fully dry and you do not have any water in the shed and get back to turning.
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25th March 2012, 09:23 PM #54
Should really say creating.
Thanks for the well wishes on China holiday.
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1st April 2012, 09:57 PM #55
The Gripset instructions above have finally solved the problem After heavy rain there were no leaks whatsoever. EUREKA!!!!
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2nd April 2012, 09:54 AM #56.
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5th April 2012, 04:54 PM #57
That's fantastic news. No water in the shed.
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10th May 2012, 05:59 AM #58Member
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Read this fram start to finish and it had more twist and turns than a good novel. Very please to hear you have a water proof shed now
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10th May 2012, 08:36 AM #59
The waterproofing has held well for 2 months now so its doing the job. The last very heavy downpour and the only water I got in was from a roof join That's the problem when you move a shed without dismantling it. Anyway a small tarp from a camping store over the roof and the problem is solved. I couldn't be bothered putting bitumen sealant over the roof. The tarp can't be seen and will last for years as I have used this type before.
Having kept water out I am now working on a small black ant problem. The buggers have nested in the insulation and were inside of one of my drills (which they kindly ruined). I put a flea/ant bomb in the shed and that killed them off instantly. Yet 4 weeks later they were back and this time less than 1,000 of them were in my radio. So, another bomb and again instant death. This time to ensure that a further battle front isn't launched by a new wave of them, I bought a 3 litre bottle of Defender surface spray as a follow up. It has a 9 month protection for crawling insects.
The trouble with the small black ants (or coastal brown) is that when they get into an electrical tool it is ruined in no time at all. I pulled my drill apart to see if I could save it but alas - too late.
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11th May 2012, 07:56 PM #60Member
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Try some ant sand. They take it back to their nest and it sorts them out for good.
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