[Mgs] MGA heat and sound insulation

[Barney Gaylord]

Foil faced insulati0n is goof for reflecting 
radiant energy.  The foil cannot reflect anything 
unless it is exposed in open space facing the 
heat source.  Foil under carpet does nothing.

Weight of the material will supress vibration of 
sheet metal to reduce noise, but does almost 
nothing for noise on plywood floorboards.

Air space trapped within the insulation supresses 
heat transfer.  To that end, thicker material can 
be better thermal insulation.  All of the items 
you have highlighted appear to be fairly thin.

I rather like the low cost "Space Age Insulation" 
I have bought from JC Whitney.  See here: 
http://mgaguru.com/mgtech/interior/int101-1.htm
I thought that Moss sold something similar (maybe 
the same stuff) but I haven't checked there 
recently.  This is 3/8-inch thick felt/rag 
material with reinforced foil on one side.  Good 
value for the money if you want to supress heat flow.

Barney Gaylord
1958 MGA with an attitude
http://MGAguru.com


At 01:17 PM 4/4/2017 -0500, Robert J. Guinness via Mgs wrote:
>I need to reinstall carpeting in my MGA roadster 
>to get rid of the eroding jute 
>underlayment.  Moss is having a sale on the 
>three different underlayments listed 
>below.  Anyone have experience with any of 
>them?  Any preferences?  Any readily available 
>patterns for cutting and installation.  Any 
>tips and tricks for the novice?  Thanks.
>
>Foil Heatshield
><http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=135443>http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=135443
>Â
>Hushmat
><http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=135421>http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=135421
>
>Sound Control Super Insulation
><http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=135460>http://www.mossmotors.com/Shop/ViewProducts.aspx?PlateIndexID=135460
>
>--
>Robert Guinness
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