I installed a 10′ wide – 4 panel Anderson slider this past fall. Installation went well and I really like the door. But since this recent sub zero cold snap I noticed alot of air infiltration coming in at the bottom of the two sliding doors…its pretty substantial. When I installed this door my sub floor was perfectly level and when I installed the glass mobile panels I didn’t have to adjust the door at all. Do I need to lower the glass panels to get better air sealing at bottom? Any thoughts would be greatly appreciated!
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Lowering the doors probably won't help, as the bottom seal seals on the outside face of the raised curb.
Check that the sill is not pitched outward, that would loosen the contact of the bottom seal. Are the doors still aligned well?
Rich
I believe everything is aligned correctly in both planes. I'm sure the air is coming at the bottom of the sliders. I know that these weren't the best to choose in a cold climate of NW PA but the other slider (2 panel) that I installed right next to the 4 panel doesn't leak very much if at all. Thats really why I posed this question; 4 panel leaks bad-two panel doesn't. Humm??!
Do you have the 'reach-out' lock at the center of the two operating panels adjusted so it takes a little effort to latch? You shouldn't be able to just turn the thumb latch to lock. It should be adjusted so it makes the interlock weather-strips join tightly.Did you silicone behind the operating panel's interlock weatherstrip at the bottom, like the directions indicate?I would think the lower the panel sits, it would seal more tightly. I've never had a problem with their doors leaking air at the bottom..View Image
Yeah, we've got a 32-year-old Andersen slider and the wife has never complained about a draft under it. (And believe me, if there's a draft she complains.)I'd try lowering the door all the way down, then jack it up just enough to slide smoothly.
The modern conservative is engaged in one of man's oldest exercises in moral philosophy; that is, the search for a superior moral justification for selfishness. -John Kenneth Galbraith
Are you sure it's coming from under and not falling down the glass face?
A sliding door is not the choice to make for a cold climate where you are concerned about air infiltration
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