I need input on best way to hang new copper or pex pipes from underside mobilehome without opening up belly board
Posted: Mon Jun 11, 2018 12:21 am
The old galvanized pipes need replaced under a double wide mobilehome. I am going to run new pipes, using a new streamlined path from city water hookup to my water heater etc.
I am trying to avoid ripping open belly board, then having to drill holes through many many joist locations to run new pipes. I also have new Roxul batts already in between floor joists, so trying to slip pipe through all that would also be a major hassle.
My first idea was to find something that will allow plumbing hangers to run along the metal farmings that run across the bottom of home. But I'm not sure there is any way to do that without a special metal drill and a lot of prep time. I've heard about self-tapping screws but not sure if that will go through the thickness of mobile home beams.
My second idea is to somehow run wood strips across the metal beams so that the hangers can screw into the wood. But that still requires finding a way to hang wood boards on the metal beams with special glue that is made for wood to stick to metal without falling apart over the years due to metal expanding and wood wanting to breath. I have yet to find any type of bonding agent on the market for wood to metal that can actually handle the weight of the water filled pipes as well.
My third idea is something I have never seen nor heard of anyone doing before:
is there any laws or reasons I can't just run the main pipes at ground level using some treated 2x4's that are secured into the ground with large nails or rebar using Van hangers. Then all pipes that need to go into the home, would tee off the main pipes and go straight up into flooring where needed. Seems an easier and faster way to secure the pipes rather than trying to screw something into the heavy iron metal framing.
Again, don't want to open the belly or run pipes through all the joists for many reasons related to time,money and effort.
Which idea would you do and how?
I am trying to avoid ripping open belly board, then having to drill holes through many many joist locations to run new pipes. I also have new Roxul batts already in between floor joists, so trying to slip pipe through all that would also be a major hassle.
My first idea was to find something that will allow plumbing hangers to run along the metal farmings that run across the bottom of home. But I'm not sure there is any way to do that without a special metal drill and a lot of prep time. I've heard about self-tapping screws but not sure if that will go through the thickness of mobile home beams.
My second idea is to somehow run wood strips across the metal beams so that the hangers can screw into the wood. But that still requires finding a way to hang wood boards on the metal beams with special glue that is made for wood to stick to metal without falling apart over the years due to metal expanding and wood wanting to breath. I have yet to find any type of bonding agent on the market for wood to metal that can actually handle the weight of the water filled pipes as well.
My third idea is something I have never seen nor heard of anyone doing before:
is there any laws or reasons I can't just run the main pipes at ground level using some treated 2x4's that are secured into the ground with large nails or rebar using Van hangers. Then all pipes that need to go into the home, would tee off the main pipes and go straight up into flooring where needed. Seems an easier and faster way to secure the pipes rather than trying to screw something into the heavy iron metal framing.
Again, don't want to open the belly or run pipes through all the joists for many reasons related to time,money and effort.
Which idea would you do and how?