Author Topic: Prevost LeMirage inside roof ceiling heat barrier  (Read 190 times)

Offline Gerry H

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  • 1992 Prevost LeMirage XL-40 8V92 740 Allison
Prevost LeMirage inside roof ceiling heat barrier
« on: September 13, 2019, 01:49:40 PM »
I'm getting ready to do my ceiling and am looking for a material for a heat barrier and wondering what's being used out there. I was thinking of using rigid 1/2" insulation covered by 1/4" plywood, but is there anything less thick, say 1/4" that will be easier to install. What about 1/4" insulation used under siding installs. Any ideas besides green shag carpet? Thanks Gerry H
Forest Lake, Minnesota
Land of 10,000 mosquitoes and a few cool buses

Offline richard5933

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Re: Prevost LeMirage inside roof ceiling heat barrier
« Reply #1 on: September 13, 2019, 05:04:43 PM »
Check out the "Beginning From This Morning" YouTube channel. They did some head to head testing on this very subject and posted the results. I believe they are on one of the bus forums now as well.
Richard
1974 GMC P8M4108a-125 (Custom Coach "Land Cruiser")
1964 GM PD4106-2412 (Former Bus)
Located in beautiful Wisconsin
KD9GRB

Offline robertglines1

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Re: Prevost LeMirage inside roof ceiling heat barrier
« Reply #2 on: September 13, 2019, 06:51:09 PM »
I used 1 inch blue foam board. Joints with foam in can. Put foil bubble wrap below it. then furring strips to hold insulation in place. Did same on side walls. with Luan over all. Then covering of your choice. Used Marine vinyl on ceiling stappled and then reversed to sides. Don't forget floor /top of bays anywhere you can.  I cool to 100 deg in sun and single digits for heat. two 9000 BTU and 1 each 12000 btu. 45 ft XLE. 8yrs with this set up. If you go to bus projects section  45XLE    there are several pictures.  Last post in 2018.
« Last Edit: September 13, 2019, 06:58:30 PM by robertglines1 »
Bob@Judy  98 XLE prevost with 3 slides --Home done---last one! SW INdiana

Offline richard5933

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Re: Prevost LeMirage inside roof ceiling heat barrier
« Reply #3 on: September 14, 2019, 05:08:49 AM »
The Beginning From This Morning videos show something glued directly to the metal roof before the insulation. From their testing it helped enough to be worthwhile.
Richard
1974 GMC P8M4108a-125 (Custom Coach "Land Cruiser")
1964 GM PD4106-2412 (Former Bus)
Located in beautiful Wisconsin
KD9GRB

Offline Gary Hatt - Publisher BCM

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Re: Prevost LeMirage inside roof ceiling heat barrier
« Reply #4 on: September 14, 2019, 01:23:16 PM »
Check out EHP. Several bus people are using this now for their superior insulation value.  It is probably the best insulation on the market.  www.engineheatprotection.com

Read an article about using this insulation in the September issue of BCM.

https://www.busconversionmagazine.com/wp-content/uploads/2018/12/BCM-2018-09-Sep.pdf



1967 Eagle with Series 60 Power Plant
Gary@BusConversions.com

Offline Gerry H

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Re: Prevost LeMirage inside roof ceiling heat barrier
« Reply #5 on: September 15, 2019, 09:40:29 AM »
Thanks for your input everyone, so far I like the CeraTex 3170 idea from Beginning from this morning, Thank you Richard.
Forest Lake, Minnesota
Land of 10,000 mosquitoes and a few cool buses