Canuck Audio Mart Hifi and Audio ForumCanuck Audio Mart Hifi and Audio Forum
It is currently Mon Dec 18, 2017 8:46 am

All times are UTC - 8 hours




Post new topic Reply to topic  [ 10 posts ] 
Author Message
PostPosted: Fri Mar 03, 2017 8:25 am 
Offline

Joined: Tue Mar 04, 2008 10:05 am
Posts: 271
Location: Peachland, BC, CA
Hello, I am in the final stages of my build of my dedicated sound room in my garage. The room is 11 ft by 20 ft with a sloped ceiling from 11 ft to 14 ft. Well insulated and will be installing heavy drapes on front wall behind speakers, acoustic panels in corners and 1st reflection pts as well as heavy rug over floor. My problem may be the floor is the Original Dricore over concrete and when walking over it it resonates like cheap laminate. I may fasten it to the concrete but I doubt that will be enough. A very knowledgable CAM friend has recommended glueing and screwing 3/4 plywood over the Dricore. Any opinions?


Top
 Profile  
Reply with quote  
PostPosted: Fri Mar 03, 2017 8:42 am 
Offline
Premium User
User avatar

Joined: Sat Jul 04, 2009 6:08 pm
Posts: 18451
Location: Montreal, QC, CA
Just how un-level was your concrete floor before installing the Dricore? The Dricore's job is not to level the floor; it is to create a vapor barrier and weep/drainage space between the floor and covering.

You can probably get away with screwing or gluing plywood over the Dricore (keeping it lifted off the concrete where thee are shallow areas), but that still leaves the problem of it not being in intimate contact with the concrete floor at all points, which will eventually allow floor warpage and/or weakening in certain areas.


Top
 Profile  
Reply with quote  
PostPosted: Fri Mar 03, 2017 8:57 am 
Offline

Joined: Tue Mar 04, 2008 10:05 am
Posts: 271
Location: Peachland, BC, CA
The concrete floor is quite level with only one spot with any bounce. This is where I plan on putting in a Tapcon or two. The problem if there is one is the sound of the floor sounds hollow. I should of used the insulated version of Dricore,and had planned on using it with the original Dricore around where the floor meets the walls but discovered that they are not compatable as the two different versions are different thickness.


Top
 Profile  
Reply with quote  
PostPosted: Fri Mar 03, 2017 9:02 am 
Offline
Premium User
User avatar

Joined: Sat Jul 04, 2009 6:08 pm
Posts: 18451
Location: Montreal, QC, CA
canisbay wrote:
The concrete floor is quite level with only one spot with any bounce. This is where I plan on putting in a Tapcon or two. The problem if there is one is the sound of the floor sounds hollow. I should of used the insulated version of Dricore,and had planned on using it with the original Dricore around where the floor meets the walls but discovered that they are not compatable as the two different versions are different thickness.


Can you shim that 1 location? Much preferable to forcing the Dricore down to conform to the dip.


Top
 Profile  
Reply with quote  
PostPosted: Fri Mar 03, 2017 9:54 am 
Offline

Joined: Tue Mar 04, 2008 10:05 am
Posts: 271
Location: Peachland, BC, CA
I could shim but would require bringing back up.Possibly the weight of the gear and furnishing will solve the low spot which isn,t that bad. I probably am jumping the gun a bit as I have not even finished the build so have not heard any music to talk about other than a radio. The term resonate is wrong in that it is more a hollow sound when walking over and not so much movement.


Top
 Profile  
Reply with quote  
PostPosted: Fri Mar 03, 2017 1:13 pm 
Offline

Joined: Mon Aug 08, 2016 5:46 pm
Posts: 403
Location: Markham, ON, CA
The plywood is a great idea. If depth is not a big problem, install a 1 inch layer of closed cell foamboard on top of the dricore, then screw down plywood directly to the concrete. Cover with broadloom and you will reduce/remove most resonance. As well, providing the speakers with direct contact with the concrete (spikes) would also isolate the speakers from the floor.

Cheap (or otherwise) carpet does a great job soaking up a lot of resonance.....

Best of luck!


Top
 Profile  
Reply with quote  
PostPosted: Wed Mar 08, 2017 10:26 pm 
Offline

Joined: Tue Mar 01, 2016 9:26 pm
Posts: 20
Location: Cochrane, AB, CA
A few years ago I put down a product called delta FL. It is like budget dricore. It comes in a roll and is similar to the dimpled plastic that dricore uses. Then you put down osb or plywood and screw it down. Anyway, the manufacturer recommended putting down a layer of landscaping fabric to stop the ticking sound cause by slightly uneven floors. Worked like a charm.
Cheers
Deek


Top
 Profile  
Reply with quote  
PostPosted: Thu Mar 09, 2017 5:29 am 
Offline

Joined: Fri Nov 18, 2011 6:41 am
Posts: 260
Location: Ottawa, ON, CA
Get some Capcon screws with the tapered head...drill into the concrete and then screw in the blue coated screws...Use what you need to tighten the floor down to min resonating. Go every square foot or so.


Top
 Profile  
Reply with quote  
PostPosted: Thu Mar 09, 2017 8:28 am 
Offline

Joined: Wed Sep 14, 2016 10:30 am
Posts: 3
Location: Warman, SK, CA
You can also drill some small holes in the dricore and shoot in small amounts of spray foam.
Just don't use too much or the dricore might lift.


Top
 Profile  
Reply with quote  
PostPosted: Thu Mar 09, 2017 10:53 am 
Offline

Joined: Mon Jan 03, 2005 8:43 am
Posts: 948
Location: Burlington, ON, CA
I have the Delta FL and T&G plywood as my subfloor in my basement. It was tapcon'd to the floor in various places.

There is 1 part where it "clicks" when I walk on it. Could have used a few more tapcon's there.

Other than that it is excellent. No vibration issues regardless of how loud the movie bass is either.

_________________
Give me a musical system and a PC front end

Mark in Burlington


Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC - 8 hours


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group