¼” thresholds and panic thresholds do not create enough of a lip to seal the sweep to. You need a ½” high lip for the sweep to brush against. Regarding the threshold, I rarely see panic thresholds and don’t like them as you have to have your doors so low to the ground they get caught up on rock salt and ice and snow. On occasion, silicone, but it is pretty rare for us to use it. All this is predicated on the fact that we ONLY use brush weather-strip. If you have hollow metal doors you will always have a complaint. If you have wood doors you can recess the weatherstrip like NGP 144PA or 144SA and then run the sweeps full door width (picture attached of some mahogany doors we did like this). You see a gap at the center that’s the depth of the brush and brush holder. We then use brush astragal and run it down over the flange of the sweep and butt it to the brush holder part of the sweep. We use the shortest sweeps possible and run them full width of the door. If you have hollow metal doors there is a gap and it is always a problem with the customer. This problem can be resolved by using a panic type threshold with seal and not using the sweeps but I have 2 architects that will only approve a saddle threshold.Īny ideas or pointers will be greatly appreciated.”Īnswer from Paul Goldense of Goldense Building Products: “Yes, this is a problem and there’s no way around it. I have seen some hardware installers run the seals long (beyond the edge of the door) but this never lasts. If you run the sweeps all the way to the door edge and then butt the astragals on top of the sweeps, you are left with a gap between the door sweeps. If you run the astragal seals the full height of the door and then butt the sweeps against them you are left with a gap under the astragal seals. If you square cut the items you are always left with some sort of open gap. On a pair of doors, what is the best way to install surface mounted door bottom sweeps along with surface mounted astragal seals and a saddle threshold? Question from Lee Echols: “I have been going over this with many people in the hardware industry and have not found an answer that completely satisfies me yet. Lee Echols left a question on the Facebook Fan Page an embarrassingly long time ago (I didn’t realize it was there), and I asked a very knowledgeable hardware supplier/installer for some help in answering Lee’s question. …and lucky for me, I know A LOT of people! There are plenty of things that I don’t know but I can usually figure out who to call to get an answer. “It’s not what you know, it’s who you know…”
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