lamby
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Posts: 38 
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Post by lamby on Aug 31, 2015 6:33:27 GMT
What's your thoughts on rendering the side walls? do I render to the very bottom of the wall (where the block meets the base) or do I leave a small gap (1/2") so water can't get up and behind the render?
Ta
Lamby
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phi1
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Posts: 91
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Post by phi1 on Aug 31, 2015 11:29:24 GMT
Chris I have got the same question, I think I will render down to the base and then mastic the join.
I am worried about rain water being wicked up from the base by the insulation, The Ceramic blanket is like a sponge and I think water changing to steam between the insulation and the render could do a lot of damage. (water to steam expansion 1800:1)
I was in the fire service and can tell you it can do a lot of damage to the structure and people.
Phil
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lamby
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Posts: 38
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Post by lamby on Aug 31, 2015 16:40:27 GMT
Hi Phil,
I was talking more about the base walls (I know you don't have that problem due to your build location) but you're correct, it applies to both the base rendering and the dome rendering.
Thoughts welcome.....
Chris
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phi1
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Posts: 91
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Post by phi1 on Aug 31, 2015 17:18:03 GMT
Chris Rendering on houses does not go to the ground, I think they use a stainless steel angle with mesh on one side, the mesh side is fixed to the wall and the solid SS forms a "shelf" for the render to sit on and give a nice level line. I guess for the oven support you could use 2 x 1 as a temporary spacer and remove it once the render is dry (I don't think it sticks to wood and will shrink away when dried" There may be more experienced people on this site who can give better advice  |
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