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Hanging hardie plank question

Posted on 3/26/21 at 6:50 pm
Posted by TDTOM
Member since Jan 2021
14543 posts
Posted on 3/26/21 at 6:50 pm
I have had two people come look at hanging plank on my back porch. One said we need to strip all of the old Masonite off then hang. The other said the can put the plank on top of the Masonite. I assume that will be cheaper. What is the downside to just putting it on top? Thanks.
Posted by wickowick
Head of Island
Member since Dec 2006
45810 posts
Posted on 3/26/21 at 7:40 pm to
Is there rot to the Masonite? I would think you would have issues where the hardi matches up to window and doors if you don’t remove the Masonite first
Posted by gumbo2176
Member since May 2018
15134 posts
Posted on 3/26/21 at 8:01 pm to
Probably going to look like crap where it meets up with the window and door trims and likely be proud of the trim faces.

If so, that will look pretty amateurish by the contractor.

Go with the guy who's going to remove the old siding and do a more professional job.
Posted by k wilk
Member since Nov 2008
660 posts
Posted on 3/26/21 at 8:22 pm to
You don't necessarily need to demo the existing masonite siding, but there are several things to consider:

1. Potential for warping. Any variation in the masonite will be seen in the Hardie. You could wind up with a wave effect.

2. Warranty. You may not get a labor or manufacturer's warranty if the substrate does not meet Hardie's specs.

3. As the previous poster mentioned, the masonite could deteriorate underneath the Hardie.

At the end of the day, I think it's a personal preference, and you have to weigh your options to decide what risk you are or are not ok with taking.
Posted by Art Vandelay
LOUISIANA
Member since Sep 2005
10702 posts
Posted on 3/26/21 at 8:31 pm to
You know the answer. You looking to justify the cheaper route. Do it right.
Posted by Glock17
Member since Oct 2007
22388 posts
Posted on 3/26/21 at 9:00 pm to
I had Masonite on part of my house (carport/patio) in 2016 during the flood. The way that crap held water I ripped it all out and replaced it when hardy
This post was edited on 3/26/21 at 9:01 pm
Posted by mingoswamp
St. Louis
Member since Aug 2017
968 posts
Posted on 3/26/21 at 11:25 pm to
Would you put new tires over your old tires?
Posted by TDTOM
Member since Jan 2021
14543 posts
Posted on 3/27/21 at 7:10 am to
No rotting. All windows are framed by mouldings so that shouldn’t be an issue.
Posted by TDTOM
Member since Jan 2021
14543 posts
Posted on 4/1/21 at 8:05 am to
Does this seem reasonable?

Remove old masonite and prep wallsfor hardie board
- Install, tyvek and smooth hardie board
with a 6" reveal
- Caulk and prep for paint
$1650

Boards, trim, caulk, nails, tyvek paper
$750

The contractor charges $125.00 for debris removal
$125

Install qty 4 outlets in desired areas
$800

Total $3,325.00

$800 to run 4 outlets when the studs are visible seems high. His longest run from a visible outlet would be maybe 6 ft.

Thoughts?
This post was edited on 4/1/21 at 8:08 am
Posted by Chasin The Tiger
Lake Travis, TX
Member since Sep 2012
576 posts
Posted on 4/1/21 at 8:12 am to
How many sqft? Seems pretty good to me. Electrical outlet price seems high. That's something you could easily do yourself.
Posted by TDTOM
Member since Jan 2021
14543 posts
Posted on 4/1/21 at 8:16 am to
Roughly 350 sq/ft.
Posted by GeauxldMember
Member since Nov 2003
4388 posts
Posted on 4/1/21 at 8:17 am to
quote:

Does this seem reasonable?



Tough to know without scale. How many squares of Hardie?

Ask the contractor a question: When you say caulk and prep for paint, are going to caulk the joints where the siding overlaps? If they say yes, find another contractor. I see this done all the time and it is not correct.

Also, they should be flashing behind every butt joint with 30# felt or aluminum. Verify this as well.

Posted by wickowick
Head of Island
Member since Dec 2006
45810 posts
Posted on 4/1/21 at 9:03 am to
The electrician will have to send a truck for 4 hours. The truck probably has 2 guys. Now if the guy you hired is doing the work, that price is probably high.
Posted by TDTOM
Member since Jan 2021
14543 posts
Posted on 4/1/21 at 9:22 am to
It should take 1 person about an hour.
Posted by awestruck
Member since Jan 2015
10943 posts
Posted on 4/1/21 at 11:27 am to
quote:

It should take 1 person about an hour.

Then you should do it.


. . . you use to making $800 (minus expenses) an hour?
Posted by Art Vandelay
LOUISIANA
Member since Sep 2005
10702 posts
Posted on 4/1/21 at 11:34 am to
quote:

Ask the contractor a question: When you say caulk and prep for paint, are going to caulk the joints where the siding overlaps? If they say yes, find another contractor. I see this done all the time and it is not correct.


And voids warranty. Yes it’s done all the time and people get offended when I tell them not to do it and it’s wrong.
Posted by Unobtanium
Baton Rouge
Member since Nov 2009
1593 posts
Posted on 4/1/21 at 11:43 am to
First house I owned had Masonite siding. Started falling apart after five years. IIRC, there was a class action lawsuit over this crap. Masonite is great indoors where it stays dry; outdoors not so much.

If I were you (and I'm not, nor is it my money being spent), I would take down the Masonite.
Posted by baldona
Florida
Member since Feb 2016
20457 posts
Posted on 4/1/21 at 11:46 am to
quote:


And voids warranty. Yes it’s done all the time and people get offended when I tell them not to do it and it’s wrong.


So you aren't supposed to caulk between the joints at all even if you put the flashing also? Interesting
Posted by TDTOM
Member since Jan 2021
14543 posts
Posted on 4/1/21 at 12:01 pm to
quote:

I would take down the Masonite.



I am. I am also going to do the electrical.
Posted by GeauxldMember
Member since Nov 2003
4388 posts
Posted on 4/1/21 at 2:43 pm to
quote:

So you aren't supposed to caulk between the joints at all even if you put the flashing also? Interesting


You can caulk the butt joints, but really shouldn’t have to. You can and should also caulk/seal any of the joints where the siding butts against corner boards, door and window trim. You should never caulk the lap joint. Water can and will get behind the siding and caulking that joint will basically give that water no path to drain.
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