Mobile Home Insulation

Types

• Fiberglass batts/rolls: relatively cheap, can DIY (nail gun I think)
• Blown in fiberglass: fast, needs professionals, kinda pricey, otherwise same as fiberglass batts/rolls
• Spray foam: fast, needs pros, triple cost of fiberglass, kinda sick, very good insulator and water resistant and pest resistant
• Rock wool: very heavy, fireproof, soundproof sorta, seems costly

R-values

The higher it is, the better it will insulate. You can stack them together linearly (R15 with R15 on top = R30).

If your home has a vaulted ceiling, the roof insulation will have a maximum value of R30. A layer of quality R22 insulation is used in the subfloor and R11 in the walls.[1]

In PNW, seems that these are general values to use[2]:

• Attic: R49-60
• Walls:
  • 2x4: R13-15
  • 2x6: R19-21
• Floors: R25-30
• Crawlspace: R25-30

References

1. Insulation in Manufactured Homes | Clayton Studio
2. All About Insulation R-Values - The Home Depot
3. Spray Foam Insulation  | Family Handyman

Last modified: 202401040446