Door Threshold

hesker

Does anyone know the manufacturer of this outward opening external door threshold.

IMG_2967.jpeg

IMG_2966.jpeg

Have googled till my eyes hurt.

It’s a recent manufacture. Door supplier not being too quick to disclose details.

I may have to move the door and am afraid this may not be possible without destroying the threshold as it may have been cemented down. Ideally I’d replace like with like

10-10-20

Not sure on the manufacturer, but I see frame-screws on the upright. Does that black strip on the threshold lift exposing similar frame-screws?

hesker

Great suggestion. Thanks.

Yes it does lift but sadly no fixing screws visible. It reveals another seal beneath it which has codes on it and manufacturer name of Technoform. So that’s a rabbit hole for me to explore. I suspect it might just be the seal manufacturer.

https://www.technoform.com/en

I’m hesitant to lift that second seal until I find out more.

10-10-20

https://www.boards.ie/discussion/comment/121170370#Comment_121170370

They look like a contract manufacturer so they won't have all of their profiles documented. Looking at the photos again, I wonder if it's just lying on the threshold and only secured by the uprights. It would make sense so that the DPM isn't perforated.

hesker

Yes that’s what I’ve been thinking. Hopefully they only applied a flexible sealant underneath. However I know they applied fresh cement underneath at the same time so I guess I’ll find out when I remove the frame screws and packers.

10-10-20

https://www.boards.ie/discussion/comment/121170849#Comment_121170849

Cement, if used was probably only for bedding-in, and will pull off at the DPM. Odd choice, I'd have used frame sealant or airtight expanding foam.

Mellor

It's a probably generic extrusion profile supplier to a manufacturer and not on the market independently.

I assume you mean mortar not cement. And that would have been for bedding, its a pretty poor bond to not porous flat materials. More likelt the whole frame is fixed in mechanically rather than with adhesive.

hesker

Yes mortar rather than cement. Mechanically fixed with frame screws but can’t find any in the threshold

10-10-20

https://www.boards.ie/discussion/comment/121171444#Comment_121171444

Does the threshold move independently at all if you wiggle it? It might indicate whether it's free or not.

And yes, mortar not cement. In my defense it was 11:30pm. 😁

hesker

Threshold is mated with the frame uprights with some plastic or composite coupling so it’s fixed.

If I get enough dry weather this weekend I’ll remove frame screws and see if I can wiggle it free. There’s only about 5mm clearance all around though

10-10-20

https://www.boards.ie/discussion/comment/121172016#Comment_121172016

If you do that, one thing that I'll add is to source longer frame-screws as I found that once they are installed they cause the drilled holes into the block to deteriorate to the point that a second application of the frame-screws doesn't tighten up as well. I ended up getting 120mm or 150mm screws then instead to replace the existing ones.

Mellor

The threshold could be simply fixed to the side uprights, and they are holding it in place. To move it the whole frame needs to move

hesker

Yes that’s what I’m expecting.

hesker

Got it out easy enough in the end without any damage. Removed the frame screws and pushed the frame out from the top but the threshold was still rigidly fixed.

Broke up the mortar on the inside and it came free then. Rehung it without too much trouble. Glad to get it done before tomorrow’s rain arrives.