Reply
 
Thread Tools Display Modes
 
Old 01-07-2019, 10:51 PM   #21
Bus Geek
 
o1marc's Avatar
 
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 3,745
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
Quote:
Originally Posted by peakbus View Post
Good question. I still have room to slip another layer in between the two covers.
Temporarily secure the left overs and see if it makes a diff.
o1marc is online now   Reply With Quote
Old 01-08-2019, 07:27 AM   #22
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 10,605
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
super progress!! glad i found this ..dbmat is what you used? im in the process of insulating and noise reducing the firewall area of my DEV bus.. I was about ready to put dynamat down on the firewall area but I think im going to go with this instead!!



what did you fasten it to the underside of your doghouse with? my factory doghouse insulation is still there but after 28 years is looking a bit crappy so thinking i'll do what you did and replace it as well..

-Christopher
cadillackid is offline   Reply With Quote
Old 01-08-2019, 08:39 AM   #23
Bus Geek
 
Tango's Avatar
 
Join Date: Mar 2011
Location: Houston, Texas
Posts: 8,159
Year: 1946
Coachwork: Chevrolet/Wayne
Chassis: 1- 1/2 ton
Engine: Cummins 4BT
Rated Cap: 15
Thank you for sharing the dB Info! I have been trying to find that stuff for the last couple of freakin' years. I think it is the same material I added to my old BBAA 20+ years ago. Made a really big difference in the gawd awful noise coming off my old DD6V53. I did put on two layers inside the doghouse but anyone who has ever been around that motor will understand why.
Tango is offline   Reply With Quote
Old 01-08-2019, 11:23 AM   #24
Mini-Skoolie
 
peakbus's Avatar
 
Join Date: Dec 2017
Location: Sandpoint, ID
Posts: 55
Year: 1998
Coachwork: Thomas Vista
Chassis: International 3600
Engine: T444E
Rated Cap: 12
I think what I have is dBmat WM2 Barrier with Foam Decoupler. The website is a little hard to follow with many products. 1800nonoise.com I called and got good info from Cliff. There are other companies out there too. Theses guys were very helpful though.
The material has peel and stick adhesive but I also ordered their anchors- basically nails with a square metal plate attached to the head. You glue the plate to the panel then push the insulation onto the anchors and hold with a cap. Sorry, I didn't get a photo. Installation was pretty easy. Cut to fit, test fit, peel, stick. Do your test fitting before installing the anchors as they would get in the way.
Again, can't say the bus is quiet, but noticeably better.
peakbus is offline   Reply With Quote
Old 01-08-2019, 12:05 PM   #25
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 10,605
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
Where do you buy the mat and anchors? I found the 1800noise site but couldn’t find any info about dealers and product ID to purchase. The material you are using sounds exactly what I want to use in my DEV bus, and maybe the red one too although I dynamited it a couple years ago and it’s quiet, that bus has no doghouse since it’s a V8.
Christopher
cadillackid is offline   Reply With Quote
Old 01-08-2019, 12:10 PM   #26
Mini-Skoolie
 
peakbus's Avatar
 
Join Date: Dec 2017
Location: Sandpoint, ID
Posts: 55
Year: 1998
Coachwork: Thomas Vista
Chassis: International 3600
Engine: T444E
Rated Cap: 12
I found it on the 1800nonoise site- or one of their other sites. It was confusing what to use so I called and Cliff made recommendations and gave me pricing. I ordered over the phone as there was no clear path on the site to what he recommended. I just explained what my situation he said this was the stuff.
peakbus is offline   Reply With Quote
Old 01-08-2019, 12:52 PM   #27
Bus Crazy
 
Join Date: Jun 2013
Location: Picton,Ont, Can.
Posts: 1,415
Year: 1997
Coachwork: Bluebird
Chassis: GMC
Engine: Cat 3116
Rated Cap: 72
Quote:
Originally Posted by cadillackid View Post
Where do you buy the mat and anchors? I found the 1800noise site but couldnít find any info about dealers and product ID to purchase. The material you are using sounds exactly what I want to use in my DEV bus, and maybe the red one too although I dynamited it a couple years ago and itís quiet, that bus has no doghouse since itís a V8.
Christopher



Those fasteners are very common in industrial duct work insulating. They use a gun which burns a hole and then welds the piece in place. Then the insulation goes on and is capped. So simple and effective.


I think if you contact some tin-knockers in your area they could find you some. Adhesive is better than nothing for these applications but a welded stud is the cat's meow.


John
__________________
Question everything!
BlackJohn is offline   Reply With Quote
Old 01-08-2019, 12:59 PM   #28
Bus Geek
 
Join Date: May 2009
Location: Columbus Ohio
Posts: 10,605
Year: 1991
Coachwork: Carpenter
Chassis: International 3800
Engine: DTA360 / MT643
Rated Cap: 7 Row Handicap
Agreed on a stud but I don’t want ugly holes in my plastic doghouse..
christopher
cadillackid is offline   Reply With Quote
Old 01-08-2019, 09:33 PM   #29
Mini-Skoolie
 
peakbus's Avatar
 
Join Date: Dec 2017
Location: Sandpoint, ID
Posts: 55
Year: 1998
Coachwork: Thomas Vista
Chassis: International 3600
Engine: T444E
Rated Cap: 12
Their glue on anchors were $1.05 each. Stuck on with a dab of construction adhesive. The mat was around $7/sq.ft. + shipping.
peakbus is offline   Reply With Quote
Old 01-12-2019, 08:06 PM   #30
Mini-Skoolie
 
Join Date: Jan 2015
Location: Ontario Canada
Posts: 29
[QUOTE=peakbus;
Remembering a sailboat I had with an insulated engine compartment, I searched more online and found DB Engineering sells dBmat Barrier Composite. 1-1/4" thick with 2 layers of foam, a layer of heavy vinyl barrier, and a mylar heat reflective layer. This noise control is the real deal. I ordered a 4x10' roll and installed a layer on the inside of the dog house, on the firewall, on the floor above the wheel well liners. I also lined my new doghouse cover. The material is peel & stick and I also used mechanical fasteners being concerned about engine heat loosening the adhesive.


Just curious about the thermal qualities of dBmat. You installed it on the inside of the doghouse where it will have to withstand a lot of heat. Is there a thermal rating on this material?


Thanks / Ron
capnron is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 10:08 PM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2019, vBulletin Solutions, Inc.