Hello!
I have a house made of lightweight concrete (Siporex) with a sheet metal facade over a plastered facade underneath, and I'm now planning to strip it to reveal the original plastered concrete facade again. The problem is that the facade is fastened with wooden battens attached with approximately 120mm lightweight concrete nail plugs! In these are headless steel nails that extend through the side of the plug and bend out 90° a bit from the lower part of the plug straight into the concrete across. This makes the nails and plugs sit really tight!
Does anyone have experience removing nail plugs from concrete walls without taking half the wall with them, requiring me to replaster the entire house?
Best regards,
Magnus
I have a house made of lightweight concrete (Siporex) with a sheet metal facade over a plastered facade underneath, and I'm now planning to strip it to reveal the original plastered concrete facade again. The problem is that the facade is fastened with wooden battens attached with approximately 120mm lightweight concrete nail plugs! In these are headless steel nails that extend through the side of the plug and bend out 90° a bit from the lower part of the plug straight into the concrete across. This makes the nails and plugs sit really tight!
Does anyone have experience removing nail plugs from concrete walls without taking half the wall with them, requiring me to replaster the entire house?
Best regards,
Magnus
- I've talked to Gunnebo and they have no suggestions.
- I probably don't want to keep them in the wall because they can rust and cause spalling or discolor the plaster since Siporex is not waterproof and the plugs are made for dry environments.
- I probably don't want to keep them in the wall because they can rust and cause spalling or discolor the plaster since Siporex is not waterproof and the plugs are made for dry environments.
How would it work if you use one of these http://www.jula.se/spikutdragare-atle-195-mm-100075 and then place something between the extractor and the plaster to protect it?
I would have probably sanded the skull with an angle grinder. Then taken a thicker metal plate with a hole in it and pulled out the nail with strong pincers. Wood is too soft. The nail would take a chunk of the concrete. The metal plate works better as a backstop.
The problem is that the plug should also be removed (it is made of carbon steel, according to Gunnebo), otherwise TS risks getting discolorations when it rusts, just as they suggest.
You can try somewhere, but considering how they look, there will probably be a small "crater" at each plug...
Please update here on how it went! I'm curious!
Best regards,
Thomas
You can try somewhere, but considering how they look, there will probably be a small "crater" at each plug...
Please update here on how it went! I'm curious!
Best regards,
Thomas