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Sound proofing/insulation

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Silo View Drop Down
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    Posted: 09 Mar 08 at 23:19
I'm going to be sound proofing/insulating the rear of my SWB 104, and I was
wondering what is the best way to do it? Materials? Procedures? If there's a
standard approach or whether there are different ways to do this?

Sound proofing is my main priority as I don't intend to sleep in it during the
winter months, although I guess the insulation works equally well in summer
(??).

As you can probably tell, I'm somewhat of a novice, so any help will be
gratefully recieved. Cheers, Silo
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MultiplexMan View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MultiplexMan Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 08 at 05:50

Hi Silo,

Check out charliem's thread on his RCD200 upgrade/removal.

I've gone with Dynamat Extreme, RaamAudio BXT (much cheaper and equivalent to DE) and Ensolite over the lot (sides & roof).  I did the plastic wheel arch liners and metal wheel arches too.

All internal trim panels off, at least one layer (DE/BXT) over all unreinforced flat panels.  Sides got at least two layers.  My trim panels have thermal insulation bonded to the undersides.

Engine cover, redone in Dynamat Extreme, Ensolite, and the original mat refitted.  Bonnet underside - Dynamat and Ensolite and the original pad fitted over the lot.

Extra front door seals fitted to help close off transmitted external noise and keep out the dreaded red Pilbara dust.

I've just ordered a dash mat (that I will re-upholster) that will help with sound reflections from the tweeters in the front.  I also want to reduce the glare/visible reflections on the windscreen.

Method:
- disassemble everything CAREFULLY,
- clean everything religiously (Prespsol, Autosol, demin water),
- cut,
- measure,
- stick
- reassemble (or in my case remanufacture & replace trim panels)

Have fun!

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MrC02 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MrC02 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 08 at 09:13

I'm always impressed by MultiplexMan's thoroughness and attention to detail- he always makes me think I should be trying harder in my efforts with my van

My own sound proofing/insulating was intended to keep me reasonably warm for spring through to autumn camping and also to keep noise levels down for day to day use bearing in mind the 18" alloys I have fitted. 

I've used a T5 insulation kit from Amdro- consisting of treated sheeps wool for the panels and hemp for the roof and floor. I'm no tree hugging whacko  but the kit does seem to be effective both in terms of noise and heat insulation.

I've Dynomat Xtreme'd (couldn't find supplier of RaamAudio BXT?) the front and rear inner and outer wheel arches as per MM's suggestion- which provided a big improvement all round.

For carpeting I've used Veltrim automotive lining as supplied by the ever helpful Roadmark69 on this forum. He gives great advice and you only have to look at the pics of his own relined van to see he knows what he's on about! Highly recommended by all who use him here! I topped the ply flooring with a fitted slab of automotive carpet I got from fleabay.

I also considered a T5 cab kit from noisekiller- 180ish- but am happy enough with the noise levels I now have. A few on here have fitted the VW engine cover which looks sweet and from reports improves exterior engine noise levels.

The best advice I can give you would be to take your time- don't rush it as bodge jobs are hard to hide in a van  and will bug you for a long time! I really enjoyed the whole process, hope you do too  

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Silo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Silo Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 08 at 21:13
Wow! lots of brand names and stuff that I've never even heard of there!!
I'll have to do a bit of research of them on t'interweb.

I did see those kits you can get from Amdro and wondered if the kit alone
would be enough by itself??

I've never even heard of or thought of insulating the wheel arches - but then
I am a complete novice.

Thats some great advice guys, but maybe a bit specialist for me. I'lll see how
I get on and let you know.
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MrC02 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MrC02 Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 08 at 21:52

Hey Silo

I think the the Amdro kit is mainly intended as heat insulation although it certainly offers sound insulation benefits as well. I guess sound is a relative experience but bearing in mind that a T5 panel van is basically a metal box with naff all sound insulation in the rear- any improvement is a good one!

The lengths you go to are up to you but it is certainly something that can be added to as you go - as long as you haven't carpeted over everything! An Amdro kit is probably a good starting point- given the cost of large areas of Dynomat (unless you can find a source of RaamAudio BXT or similar).

Don't be put off by apparant complexities of installation- if you're happy to undo a few screws/bolts its easy- honest!! I'm no mechanic by any means but I took my time and made a note of everything I undid. Once you get started I think you'll be surprised how easy it actually is   

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Silo View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Silo Quote  Post ReplyReply Direct Link To This Post Posted: 10 Mar 08 at 22:29
Thanks MrC, I feel pleasantly assured. I'm not a without some idea of
what to do really, its just a bit daunting when the brand names you've
never heard of come out.

I fully plan to 'heat' insulate my van anyway, either with an Amdro kit, or
with rockwool or something, but I like the idea of that bit extra. You
insinuate that its quite expensive though, can you let me know roughly
what to expect for a SWB panel van?

Many thanks MrC

PS. I also fully intend to get in touch with Roadmarc69 and buy some
Veltrim and glue - I'm in Leeds and I read that he might even offering a
helping hand with the carpeting, and having seen his van, I'm rather
excited at the prospect!!

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MrC02 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MrC02 Quote  Post ReplyReply Direct Link To This Post Posted: 11 Mar 08 at 08:33

Hey Silo

I reckon the Amdro kit is great value (around 130ish with postage). The installation videos on their website also give you great tips on how to start- you soon realise its not rocket science! Its easy to work with and theres no nasty fibres to irritate eyes/skin. 

MM might have something to add to this but I used 2 sheets of 18 x 32 Dynamat Xtreme per wheel arch (one internal/one external under the wheel arch liner). I bought the Trunk kit (5 sheets of 18 x 32) from LKPerformanceStyling for 75 inc postage (cheapest I could find on the web). I  already had a couple of sheets lying around so that completed the job.

I guess the real expense would come if you wanted to Dynamat all the internal panels of the van- that was a step too far for me in terms of cost v satisfactory noise levels. I guess you would be looking at 400ish?? Other thing to remember- Dynamat ain't light- a van full could get rather heavy!

I'm happy with the decisions I've made in terms of materials but I'n no expert- others may have different suggestions. Disclaimer

Definitely get in touch with Roadmark!!



Edited by MrC02
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MultiplexMan View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MultiplexMan Quote  Post ReplyReply Direct Link To This Post Posted: 13 Mar 08 at 07:43

Guys,

eBay is your friend when it comes to Dynamat - at least down under it is!

RaamAudio BXT - buy it direct.  Just drop them a line and you will get personal service from Rick.  He's a real gent to do with business with.  The BXT worked out at half the price of the DE.  I wish I had found RaamAudio before I had ordered my DE.

http://www.raamaudio.com/cgi-bin/index.cgi

I have since found a "recycle shop" that sells the real thing - industrial sound proofing.  Adhesive butyl backed with aluminium or LEAD!  This stuff will definitely do the job.  And no, I have not been tempted to supplement my existing sound proofing  

It may pay to have a Google around your area to see if you can score some off cuts.  I would have saved major dollars if I had found these fellows first

 

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MrC02 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MrC02 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Mar 08 at 09:31

Excellent link MM, what a great website



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