replacing insulation?

[rama777]

I have 74 31' AS that I am restoring. Is it necessary to replace the insulation. I haven't determined yet if there is water damaga. If there isn't, is it still a good idea to replace it. Also, how do I remove the rivets and when I put the skins back on, I am assuming I should use new rivets and so what will I need to punch those new rivets in? Thanks!

[LI Pets]

Are you asking about the floor or walls?

[rama777]

the walls

[BB 55 Bubble]

Check out my thread on the subject there is some good info http://www.airforums.com/forum...ion-24037.html. The material I plan on using is
Reflectix
Technical info is:
[b]Temperature Range: -60 degrees to +180 degrees F
Nominal Thickness: 5/16 inch (.312)
Weight: 1.25 oz./sq. ft.
Flame Spread Index (ASTM E 84): 20
Smoke Developed Index (ASTM E 84): 30
Fire Rating: Class A/Class 1
Linear Shrinkage: None
Reflectance (IR): 97%
Water Vapor Transmission (ASTM E 96): 0.02
Puncture Resistance: 60 lb./in.
Mold and Mildew: No Growth
Emittance: 0.3
Tensile Strength: 3.7 N/mm
Pliability: No Cracking
Hot Surface Performance: Passed
R value : 16.8

It is called:
Double Bubble
Foil Both Sides

At the Home Depot:
16 In. x 25 Ft. Reflective Insulation
Model ST16025
Price: $14.95/ea

[LI Pets]

http://www.airforums.com/forums/f36/insulation-between-floor-belly-pan-what-use-25494-2.html?highlight=prodex

This stuff looks good http://www.insulation4less.com/highr_FfmF.asp

• Is waterproof and non-absorbent.
• Provides Class A/Class 1 fire rated protection.
• Provides 19 DB Soundproofing.
• Convenient flange tabs on sides.
• Does not mildew or promote fungus growth.
• Does not provide nesting for birds, rodents or insects.
• Is safe for workers to use as there are no fibers to breath or cause skin irritation.
• Has more insulation value than 6 inches of common mass insulation products.
• Can be stapled, nailed, glued or sewn.
• Easy to cut
• Reflects 97% Radiant Heat
• R-14.5

$70 for a 4x25 piece.



I started using it last week it is reall y nice it forms to shape.
If you use it in wall just cut 1/2" wide stripes for air spacers.



I just used it to insulate my water tanks, GREAT< GREAT.






http://www.airforums.com/forums/f36/insulation-between-floor-belly-pan-what-use-25494.html?highlight=lipets

[CaddyGrn]

After you see your insulation, it might help you make up your mind. Ours had lots of mousie tunnels...

Even if clean and dry, I would upgrade ~ you don't want to take the skins apart again, do you?

We tried a combination of materials and did a sandwich layer...not sure how it will fair out. Seems pretty good so far. I think on one thread the guys said they would all get together in 40 years and reinspect to see who was right!

Mrs. NorCal Bambi (traveling in S Tardis)

[C Johnson]

Originally Posted by CaddyGrn

After you see your insulation, it might help you make up your mind. Ours had lots of mousie tunnels...

Even if clean and dry, I would upgrade ~ you don't want to take the skins apart again, do you?

We tried a combination of materials and did a sandwich layer...not sure how it will fair out. Seems pretty good so far. I think on one thread the guys said they would all get together in 40 years and reinspect to see who was right!

Mrs. NorCal Bambi (traveling in S Tardis)

If I am towing at 80+ yrs old, I'll be doing good.