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aeu99217 10-10-2010 04:03 AM

CF Blanket and Render
 
Hi,

I was hoping some advice for the following problem.

I wrapped my dome in cf blanket yesterday and then coated it with render. I didnt use chicken wire or anything and today when it has dried it has turned kinda brittle and breaks easily when touched. I'm presuming that i will have to take it down and re-lay the blanket using chicken wire?

Or could i get away with putting another coat of thick render on it to try and bulk it up?

Cheers Ross :)

aeu99217 10-10-2010 07:53 AM

Re: CF Blanket and Render
 
or could i put a coat of concrete on it and would that strenthen it enough?

ThermoJax 10-10-2010 12:32 PM

Re: CF Blanket and Render
 
Be patient. Someone will answer soon enough. You are so close to being done. I envy you. Good luck.

Tom

azatty 10-19-2010 06:31 AM

Re: CF Blanket and Render
 
Chip it off and apply chicken wire first. The blanket isn't a good substrate for a stucco product. The wire gives the stucco something to bind with and also acts as reinforcement. Your final product will be more rigid and you'll get a better finish on it if you go with the wire.

dmun 10-19-2010 09:46 AM

Re: CF Blanket and Render
 
Quote:

Chip it off and apply chicken wire first.
Why chip it off? it's there already and removing it will just pull off handfulls of insulation. Unless you have a real space problem, I'd just use what's there as a support for your wire armature (hardware cloth is a lot stronger than chicken wire) and move on.

azatty 10-19-2010 04:27 PM

Re: CF Blanket and Render
 
Good point. The thought of pouring concrete on an bad subtrate sounded not too nifty. I like your idea of putting a stronger lath over it and recoating better than chipping it off.


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