Comments on: Are You Using Vent Caps for Duct Leakage Tests Yet?

By: George R

George R — Sat, 27 Jul 2013 16:49:14 +0000

If the ceiling is textured do
If the ceiling is textured do you have a factor (cfm) for seal lose?

By: Allison Bailes

Allison Bailes — Fri, 26 Jul 2013 00:11:00 +0000

Matthew L.
Matthew L.: You can use a vent cap with weight on it. You can use duct mask on the register or grille. Or you can pull the register or grille out and seal the boot, which is now allowed for ENERGY STAR V3 new homes under revision 07.

By: Matthew Lang

Matthew Lang — Thu, 25 Jul 2013 23:56:54 +0000

Similar, but unrelated
Similar, but unrelated question. How do most people deal with floor registers in carpeted areas?

By: Allison Bailes

Allison Bailes — Thu, 25 Jul 2013 23:51:34 +0000

Steve H.:
Steve H.: Yeah, I've heard of that happening to someone else, too.

Eric G.: That's true. I don't think I do it without some weight on them, though. I'll add your advice to the article.

Elizabeth G.: Indeed! I forgot to mention that as an advantage, so I'll go back and add it to the article.

By: Eric George

Eric George — Thu, 25 Jul 2013 20:24:37 +0000

What do you mean "Vent
What do you mean "Vent caps also don't work on most floor vents because the register or grille will just pull out"? Why do you need to attach the vents to the registers on floors anyway? The foam weather-stripping on the vent covers provides a good seal just by the weight of the cover, but if you really need to you can put a little weight on top of it to help seal the vent to the floor. We use them every day without issues, except as you note on vaulted ceilings.