Rendering up to painted aluminium windows

[Bernard]

Hi

We have new painted aluminium windows. Our house is currently being rendered, and although we have covered and taped the windows up as best we can the renderer has given us deep and multiple scratches all along the edges of the windows.

So, how do we avoid this on the remaining windows please? Is there a technique or a specific tool that would help?

thanks

 

[Fatarm]

What caused the deep scratches? Is it the glass are the frames?

 

[Runswithscissors]

I think it is this bead you want..... or similar (someone will qualify)Link Removed

the flap protects the window frame and after the rending is applied you then snap it off.....

 

[Runswithscissors]

Give Protekor a call to discuss..... I'm sure the other bead manufacturers do something similar

I bet the guys who do EWI refurbs will be able to comment and help more....hang around - someone will be on soon!

 

[goody]

I render to alu windows regularly. What tape have you used? What render have you chosen and who the hells applying it??

 

[Bernard]

The tape is a low tack tape. Initially we taped it right up to edges of the windows, but then it is hard to remove and get a clean line finish. Then we pulled it back from the edge, and then we got lots of scratches along where the tool has run up and down. Beng applied by a local plasterer...

 

[Fatarm]

.use this ....link>>
Link Removed
and run some gaffa tape down the edge, and tell your plasterer not to be heavy. handed..:rolleyes)

 

[Rigsby]

I use a low tack tape on painted frames to prevent the paint coming off with the tape. I would then put gaffa tape on top of the low tack.

 

[Bernard]

Then do you cut the tape and leave it behind where the render meets the window?

 

[Fatarm]

:RpS_thumbup:

 

[lizard821000]

cover / protect the frames before rendering, simples.

 

[Rigsby]

Then do you cut the tape and leave it behind where the render meets the window?

Sometimes I can get it just right but a lately I have been rendering in the tape and cutting it on completion.

 

[goody]

Yes as rigsby says.....uv resistant PVC tape with gaffa over the top. It helps if you know where the angle bead will sit so you can run your tape to the future line of the bead. Usually put a bead of silicone around the frames on completion covering any tape creeping behind reveal. It's a good idea to leave the protective foil on the frames if their newly installed and the rendering follows soon after

 

[plasterjfe]

the renderer needs to take care with rendering up to alu windows and should really have considered the APU window bead. there should be no abrasive action from rendering or cleaning against this type of window

 

[phiz]

Line tape up with the corner bead and another on top set back 5mm to stop scratching through tape. Peel off when finished, bang on straight line. ( if your spreads any good!)

 

[Bernard]

Thanks all. Lots of good tips. we'll stick with the tape and use lots more I think.