Patch Hardie Board Cement Fiber Board Siding


  #1  
Old 01-30-19, 08:08 AM
J
Member
Thread Starter
Join Date: Sep 2013
Location: USA
Posts: 99
Received 0 Votes on 0 Posts
Patch Hardie Board Cement Fiber Board Siding

Any recommendations to patch up a square hole that was cut around a copper water pipe for hardie board cement fiber board siding?

I patched a golf ball hole in the hardie board before by using foam spray, then cutting it flush and applying bondo over it then painting with sealer primer and exterior paint.

Given that theres a copper pipe in the patch area I'm concerned the foam would expand when shooting it in and end up moving or breaking the copper pipe.

So what else could I use for backing to be able to then bondo over it?
 
  #2  
Old 01-30-19, 08:46 AM
P
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 25,517
Received 962 Votes on 883 Posts
Spray foam won't hurt a pipe.
 
  #3  
Old 01-30-19, 08:47 AM
M
Forum Topic Moderator
Join Date: Mar 2005
Location: USA - N.E.Tn
Posts: 48,238
Received 426 Votes on 381 Posts
How big is the hole compared to the pipe? Low expanding foam might be an option.
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: