Q&A Forums Home » Spray Foam Questions & Answers » Ask Mason Knowles - SPF Consultant Login User Register Search
Search Forums: 
 

Q&A Forums


[ Post New Topic  |  Post Reply ]
Author Comments
diat150  

Q&A Forums Registered User
Posted: 8/15/2011 4:21 PM EST

Reply

mobile home floor
Hello all, I am setting up an older mobile home to rent out. I will have to replace all of the insulation below the floor, so I was just wondering if anyone has any experience using foam on a mobile home in place of the standard insulation that they normally use on mobile homes?I know it will cost a bit more, but Id prefer to use the foam if I can instead of having to replace the roll insulation after a few years. It may also help the tennant's electricity bill.

This is louisiana, so its very hot. Should I look into using closed or open cell. also, how many inches should I spray? Also, the mobile home pad is built up about 12 inches above the rest of the property, so water should not be able to poll underneath the mobile home.

Mason  

Moderator
Posted: 8/15/2011 4:56 PM EST

Reply

RE: mobile home floor
Yes, I have sprayed many a floor of a mobile home. .

I typically spray the under side of the floor from the outside. For this application, closed cell foam will provide the best combination of benefits.

The foam strengthens the floor, protects against insects and varmints, adds much more insulation R value per inch than fiberglass and helps keep water out of the house

diat150  

Q&A Forums Registered User
Posted: 8/15/2011 5:15 PM EST

Reply

RE: mobile home floor
I was looking around in some of the mobile home forums and they say you should not spray foam. It looks like their reasoning is due to airflow from the ducts keeping the pipes warm during the winter.

I plan on insulating the piping and also, we dont have much winter here in LA.

how thick should I go with the closed cell?

whats your thoughts on any water leaks? wouldnt the closed cell keep the water in the wood instead of letting it wick out like a open cell would?

Circle-D  

Q&A Forums Registered User
Posted: 8/17/2011 9:22 PM EST

Reply

RE: mobile home floor
We spray the mobile homes here in Maine with 2"-3" of closed cell on the underside of the floor as Mason indicates. All the piping is generally run right down the center along with the main heating trunk line. Build a 3 sided box out of foam board around the ductwork and piping. Put it up against the underside of the floor and glue her there with the sprayfoam.The duct work will keep the piping warm. Works at -30 degrees, bet it will work in LA. too. As far as water leaks go, fix the plumbing first.

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Skip
Circle-D-Sprayfoam,Inc.

shooterharris

Q&A Forums Registered User
Posted: 9/04/2011 2:50 PM EST

Reply

RE: mobile home floor
No less than 1.5'', no more than 2'', unless of coarse they just want more. Closed-cell, Always! These are good for your area.

Jump To Forum:
Jump To Board:

Q&A Forums Home
Contact The Q&A Forums Editor

Ads by SprayFoam.com