gap between polished concrete floor and sliding door frame - compriband, CT1?

[Tom]

Hi all - one of the many jobs that are on my long list to complete is to fill/seal the gap between our polished concrete floor and sliding door frame. Not least as in the last few weeks we've had several swarms of flying ants coming through. What would be the best thing to use here? The width of the gap is about 10mm - though does vary a little. I was thinking of CTI, but there might be a little movement in the floor as it has UFH so then I thought compriband. Any view on what would be best?

Thanks

Tom

[Nickfromwales]

3 hours ago, Tom said:

Hi all - one of the many jobs that are on my long list to complete is to fill/seal the gap between our polished concrete floor and sliding door frame. Not least as in the last few weeks we've had several swarms of flying ants coming through. What would be the best thing to use here? The width of the gap is about 10mm - though does vary a little. I was thinking of CTI, but there might be a little movement in the floor as it has UFH so then I thought compriband. Any view on what would be best?

Thanks

Tom

I doubt this will move that much, so CT1 would do the job.

 

If insects are getting in, then maybe look external as well, and see if you can get some insect mesh installed to stop the majority of the problem at source.

 

Mask the concrete with something that won't leave a residue (frog tape etc) and apply the CT1 after that's applied properly. Then use baby wipes to remove the excess CT1 as using a finger etc is not going to work as it does with silicone. Maybe buy one of the cheap silicone application tools off amazon/other, so you can smooth/shape the CT1 before you remove the masking and leave to cure.

[Tom]

roger that, CT1 it is 👍