 | Home > Maintenance & Modifications > Soundproofing/de-resonance/insulating the roof |
 
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| Profyaffle Member Since: 03 Oct 2016 Location: N Yorks Posts: 527  
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Hi, I have found that one coat of silent coat is enough. I previously did a classic mini and more recently my defender. As you said, the bitumen coat to kill the resonance and the closed cell foam to absorb any other noise. Theoretically the bitumen coat doesn't need to cover the entire panel but it does look better
Julia |
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8th Nov 2016 8:45pm |
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| BuckBlu110 Member Since: 19 Apr 2014 Location: in the pub Posts: 712 
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Brilliant, thank you, I can use the left over bits elsewhere then.
Did you find it makes much of a difference doing the roof? |
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8th Nov 2016 10:32pm |
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| mk1collector Member Since: 17 Sep 2009 Location: West Yorkshire Posts: 6769  
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I did two layers on mine which does make a bigger difference but one layer will be fine. I also added two layers of ccf and it's a lot quieter when driving now. Ray
My build thread http://www.defender2.net/forum/topic17615.html |
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8th Nov 2016 10:54pm |
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| BuckBlu110 Member Since: 19 Apr 2014 Location: in the pub Posts: 712
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Cheers Ray, that's good to know, cut fingers won't be in vein then!
 I suppose it makes sence that the thicker the layers and the more of them the more effective it will be. I've got 12mm closed cell foam to go on top of the 2mm silent coat too. |
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8th Nov 2016 11:01pm |
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| Profyaffle Member Since: 03 Oct 2016 Location: N Yorks Posts: 527
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I've found every little helps especially on the bigger panels. Whilst I did the whole of the mini interior with SC I haven't done in the rear of the defender as the paintwork was so nice so I am putting up with some noise. I fitted a full rubber mat over the load floor and wheel arches and put Mud stuff side panels on. I stuck some SC under the front headlining and round the bulkhead, seat box and inside the door panels then fitted the moulded mat from Exmoor trim.
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9th Nov 2016 8:37am |
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| mcma1 Member Since: 16 Oct 2012 Location: Northern Ireland Posts: 2891 |
I did my entire roof with Skinz and the 6mm foam. after a few months i was fitting the overhead DVD and the headliner had to come down, 90% of the sound proofing have peeled away. The heat on the inner surface of the roof was surprising and the black backing was so soft. Only that i was adding the DVD i would NEVER have known so just be aware. I replaced it all with dynamat which is a thinner layer and after a recent check its all still in place. Andy
2014 Fuji 110 SW LS3 https://www.defender2.net/forum/post751233.html#751233 2014 Corris 110 SW http://www.defender2.net/forum/topic40056.html My old Xtech 90 build.. http://www.defender2.net/forum/topic15681.html LS3 V8 build... http://www.defender2.net/forum/topic49051.html |
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9th Nov 2016 8:46pm |
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| BuckBlu110 Member Since: 19 Apr 2014 Location: in the pub Posts: 712
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Cheers Andy, I'll steer clear of that skinz stuff. I'm hoping the silent coat will do the job, I've read good things about it.
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9th Nov 2016 11:02pm |
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| Stacey007 Member Since: 25 Sep 2015 Location: Cheshire Posts: 3745
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I'm using silent coat 2mm on mine with 8mm foam (around the car parts)
I've yet to do the roof... It worried me taking the headlining off... and getting it back on 
Is it an ok job? |
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10th Nov 2016 9:39am |
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| bm52 Member Since: 04 Apr 2010 Location: Kent Posts: 2189 
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Easy to take off, slightly awkward to handle by yourself and put back on. 2nd pair of hands helps.
Suggest you buy replacement fir-tree clips before you start as you are bound to break some. |
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10th Nov 2016 11:01am |
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| BuckBlu110 Member Since: 19 Apr 2014 Location: in the pub Posts: 712
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^^^ this, it also bends a lot easier than you think it would, just be carful not to crease it.
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10th Nov 2016 11:32am |
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| Stacey007 Member Since: 25 Sep 2015 Location: Cheshire Posts: 3745
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If I attack this I might dig out my tri pod as a third hand
Or build a little frame out of wood? to support it |
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10th Nov 2016 11:34am |
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| BuckBlu110 Member Since: 19 Apr 2014 Location: in the pub Posts: 712
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Got all the soundproofing in on the roof, with a bit spare to do the 2nd row foot well and front foot wells. we shall see how much of a difference it has made tomorrow.
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10th Nov 2016 10:46pm |
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| g-mack Member Since: 07 Jan 2014 Location: northumberland Posts: 1967
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i used 2mm silent coat, and doubled up in centre of panels, then auto grade 3m thinsulate
worked a treat, used to sound like a 747 on take off at 70 mph. now sounds more like 737!!!!
 Click image to enlarge Click image to enlarge My 109 thread my youtube channel |
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11th Nov 2016 8:43am |
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| mse Member Since: 06 Apr 2008 Location: UK Posts: 5035 
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Ignoring we have the black "premium" headlining...i dont see any value in doing the roof and wouldnt waste time dropping the headlining...but the black headlining is definitely thicker than the standard Mike
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11th Nov 2016 1:09pm |
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