Plastering around old sash window

Discussion in 'Plastering and Rendering' started by Gossamer, 20 Jun 2017.

  1. Gossamer

    Gossamer

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    Morning all,

    I removed the architrave around a ~100yr old sash window and a load of plaster came off, which wasn't a surprise. I've removed the lose plaster which has left a gap all around the window between the brick and wood liners / frame.

    The attached photos show the area above the window, which shows the liner and wooden lintel, and the area to the side with the liner and bits of packer etc.

    I've since tidied the surrounding plaster up so there's a tidy perimeter, and hacked back a further 1'' along the wall exposing brick for a better transition from the window to the wall.

    I know plastering onto wood is a no no but it needs to be done, and I'd like to use old materials, especially as moisture / movement might be an issue due to the age of the window and house.

    Was thinking:

    - Fix some mesh or small nails to the wooden areas to provide a mechanical key.
    - Apply 3:1 sand / lime mix in the gaps, probably in two applications to prevent slumping.
    - Finish with limelite

    Thoughts?

    WP_20170620_07_10_51_Pro.jpg WP_20170620_07_10_40_Pro.jpg
     
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  3. Mr Chibs

    Mr Chibs

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    Hello

    Are you putting architrave back on or plastering up?

    I was going to suggest foam, but probably too new for what you'd like.

    Lath and plaster used to stick well... and that's wood.

    How about strips of plasterboard nailed to the wood, to fill, then a light skim of your choice.

    Starter for 10!
     
  4. Gossamer

    Gossamer

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    Cheers.
    Yes am putting up new architrave.
    Am avoiding new materials.
    My main concern is it sticking, hence the mesh idea.
     
  5. DIYnot Local

    DIYnot Local

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