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markcadioliAdministrator



Reged: Apr 26 2002
Posts: 1406
Loc: Australia
Solid Plastering ( Rendering )
      #9602 - Sat Mar 18 2006 03:21 AM Attachment (322 downloads)

A quick run down on what we call here rendering or solid plastering.

This is typical one coat system over brick using a manufactured bag mix, unlike the more traditional sand,cement and lime mix. The techniques however remain the same.

In this pic the wall is prepped by wetting down and masking the windows.



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markcadioliAdministrator



Reged: Apr 26 2002
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Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9603 - Sat Mar 18 2006 03:24 AM Attachment (293 downloads)

Joel mixes the first batch of mud


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markcadioliAdministrator



Reged: Apr 26 2002
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Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9604 - Sat Mar 18 2006 03:28 AM Attachment (335 downloads)

Consistency is a very difficult thing to describe. It can't be too wet or too dry. Not as wet as tile grout, probably about the same as mortar the bricklayers use.



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markcadioliAdministrator



Reged: Apr 26 2002
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Loc: Australia
Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9605 - Sat Mar 18 2006 03:31 AM Attachment (310 downloads)

For right handers, start at the top right and work left to right
This has you applying material over the previous coat. Aim for about 10mm ( 3/8 th ) build up.


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markcadioliAdministrator



Reged: Apr 26 2002
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Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9606 - Sat Mar 18 2006 03:34 AM Attachment (299 downloads)

Work your way down to the bottom



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markcadioliAdministrator



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Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9607 - Sat Mar 18 2006 03:39 AM Attachment (311 downloads)

Once you've coated up, the next step is screeding. Before you can do that the mud you've put on has to firm enough to hang on without falling off as you screed but not too dry as to make it difficult to screed and float.

A test I use is a couple of fingertips into the surface. In this pic the mud has peaked up as it stuck to my fingers. This too wet and not ready.



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markcadioliAdministrator



Reged: Apr 26 2002
Posts: 1406
Loc: Australia
Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9608 - Sat Mar 18 2006 03:41 AM Attachment (319 downloads)

A few minutes wait and we are now ready. The same test leaves a couple of nice dimples.



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markcadioliAdministrator



Reged: Apr 26 2002
Posts: 1406
Loc: Australia
Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9609 - Sat Mar 18 2006 03:48 AM Attachment (311 downloads)

The next step is screeding or cutting. This will establish a flat and plumb plane which we float off for our finished surface. This is the most important step of the process.

Tools are a straight screed for making the "pads " or "grounds" and a cutting screed or edge for cutting to the grounds. I make one out of a straight piece of 1x4 planed to an almost sharp edge.

First step is establish the grounds. These are plumbed in with a straight edge and level ( depending on how crucial you may choose to foget about the level ) by placing the screed on the wall and working up and down in the one spot to form your pad.



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markcadioliAdministrator



Reged: Apr 26 2002
Posts: 1406
Loc: Australia
Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9610 - Sat Mar 18 2006 03:52 AM Attachment (304 downloads)

Due to the width of this wall I will need 3 vertical pads. Once these are established I cut roughly down to the pad with the steel trowel edge to give my screed an easy start.
( Stelers T shirt courtesy of Jeff Buck )


Edited by markcadioli (Sun Jan 17 2010 11:24 PM)


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markcadioliAdministrator



Reged: Apr 26 2002
Posts: 1406
Loc: Australia
Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9611 - Sat Mar 18 2006 03:56 AM Attachment (325 downloads)

Now the fun part starts. Cutting the excess mud off. This is a slightly sawing motion side to side, ensuring you don't cut below your pad.



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markcadioliAdministrator



Reged: Apr 26 2002
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Loc: Australia
Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9612 - Sat Mar 18 2006 08:08 AM Attachment (305 downloads)

During the process, low points will show up. These will be filled in with fresh plaster after the initial cutting has been done.



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markcadioliAdministrator



Reged: Apr 26 2002
Posts: 1406
Loc: Australia
Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9613 - Sat Mar 18 2006 08:13 AM Attachment (311 downloads)

Once the final cutting is completed, we go over the surface and float it smooth. This is a circular to figure 8 motion depending on the need. This process just evens out the cut marks and brings up the surface smooth. Experience will tell when it is too wet or too dry. ( Too wet and you'll have to wait. Too dry and flick some water onto the area. )

Here Joel is using our favourite float for final finish, A piece of styrofoam from the side of a broccolli carton.



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markcadioliAdministrator



Reged: Apr 26 2002
Posts: 1406
Loc: Australia
Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9614 - Sat Mar 18 2006 08:16 AM Attachment (317 downloads)

Almost done. Here Joel is peeling away the plastic protection to the windows prior to finishing the reveals.


Time taken all up was about 2 hours.



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TLE



Reged: May 01 2002
Posts: 142
Loc: Southern Michigan
Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9615 - Sun Mar 19 2006 10:42 PM

Well, thank you for the demonstration.
I still think it is bizarre to cover up brick, though!
Regional differances always interest me, though.

Terry


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calvinAdministrator



Reged: Apr 30 2002
Posts: 2391
Loc: NW Ohio
Re: Solid Plastering ( Rendering ) [Re: markcadioli]
      #9616 - Sun Mar 19 2006 11:38 PM

everything looks good Mark, except your uniform.

--------------------
Remodeling Contractor just outside the Glass City

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