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Wayne A. Pflughaupt · 12-31-2003, 01:24 PM

Yes – a heavy solid core door with weather-stripping is the way to go. An air-tight threshold would also help.

However, you may be solving one problem and causing another. An airtight room is critical for soundproofing, but it is problematic with standard air conditioning systems, which depend on air getting past the door for proper return/ventilation. Thus an airtight room requires special A/C considerations, namely a second air vent for the return.

12-31-2003, 01:24 PM	#2 of 4
Wayne A. Pflughaupt Member Location: Katy, TX Join Date: Aug 1999 Local Time: 04:50 AM Local Date: 12-02-2008 Posts: 6,512	Yes – a heavy solid core door with weather-stripping is the way to go. An air-tight threshold would also help. However, you may be solving one problem and causing another. An airtight room is critical for soundproofing, but it is problematic with standard air conditioning systems, which depend on air getting past the door for proper return/ventilation. Thus an airtight room requires special A/C considerations, namely a second air vent for the return. My Equipment List “A nice mid-fi system,” according to an audiophile acquaintance. See my reviews SVS SBS/SCS-01 5.0 Home Theater Speaker Ensemble / SVS SB12-Plus: The Mouse that Roars Four Subwoofers Face Off: SVS PB10-ISD Takes On A Few Competitors / Mini Review: Yamaha YST-MS50 Computer Speakers See my tech articles On Minimal EQ, Target Levels, and a Hard-Knee House Curve / In-Wall Wiring for your Home Theater A Comprehensive Guide to Splicing Speaker Wire / House Curve: What it is, why you need it, how to do it