I've wanted to re-side with this product for years, but only recently
got an estimate. I'm 'wondering' about the procedure the contractor
uses, so I'm looking for some knowledgable advice.
House is sided with Masonite fibreboard, 21yrs and has been painted
twice. The contractor will replace any water damaged board (mostly the
bottom 12" on the North side) with OSB and wrap the siding with Tyvek.
I don't know that I like that approach. Contractor claims the siding
will act as a good insulator. The Hardi planks will cover the Tyvek'd
fibreboard siding. I don't know what the lifespan of the fibreboard is
but the Hardi siding is good for 50+ years.
I was surprised to hear of this procedure since I was thinking the old
board would be removed then poly board installed and that then Tyvek'd.
Is the contractors plan sound? Thanks!
On Mar 2, 9:01 am, firstname.lastname@example.org wrote:
The plan is sound. So long as your wall are adequately insulated
there is no reason to add more. Adding even an inch of insulation
creates a lot of problem with the install since the wall surface will
no longer match up with doors, windows, and other fixtures.
Pardon? No insulation is being added. He is proposing to add/install
the Hardi siding over the exisisting masonite siding. That is what I'm
asking: if that is an accepted installation method?
On Mar 3, 8:53 am, email@example.com wrote:
It is acceptable so long as the new material will reasonably match up
with doors, windows, and other fixtures. The existing siding has a
certain thickness and matches up with the fixtures at a certain
point. What is the thickness of the siding you have chosen? Take
your ruler and go out and see where it will meet the existing
You would not want to install siding which increases the thickness of
your wall so much that it would extent past the window and doors
frames. Porch lights and other electrical may have to be re-wired
with extended boxes if the width of the wall is increased
significantly. Other things may also be attached to your wall as well
further complicating things.
Installing over existing siding has very few advantages. The main
advantage is that it will be less work and more profit for the
contractor. In the contractors mind: out of site, out of mind.
Tearing of the old stuff may require a crew and a dumpster. Covering
it over could be done by one or two guys on short notice.
It would ALWAYS be better to remove the old siding. Of course it will
cost more and be inconvenient for the contractor and for you. When
the old siding is removed problems often come up with the sheathing
and some may have to be replaced if water damaged. It is not unusual
for there to be water damage underneath old siding or roofing. Would
you want the old stuff covered with new if you knew there might be
water damage and mold underneath?
On Mar 3, 8:53 am, firstname.lastname@example.org wrote:
I've used hardie on 2 houses...and if I ever build another it too will
have it. I wouldn't count on any insulation from the hardi...it isn't
an insulator. As mentioned already, the replacement process is sound,
and the Tyvek is ONLY a air and moisture barrier. Google each product
and research the installation of each. The more knowledge you have
the better prepared you'll be when the install happens.
Knowledge is probably where my hesitation comes from...lol I retired
from residential/commercial/industrial construction(45yrs/electrician),
due to health reason, two years ago. Like I mentioned before, I
intended to do this job myself, and all the time what held me back was
having to remove all that old siding. Having this contractor installing
over the old siding 'threw me'. This is a small house and only 3 sides
to do...no soffit replacement.
I really should replace the existing 1-pane cheap-ass builders-grade
Years ago I cut/installed plexiglass on the exterior of those windows,
so they are 'kinda' double-pane, but the newer widows are much superior
nowadays. 5 of the 8 are directly North facing and the other 3 are
directly West facing, so it's a good idea. Darn shame I'm poor
I'll get estimates from some other contractors......
Thanks for the advice. I appreciate it!
No budget = No project. It sounds like the siding is not the problem
but the budget, lol. You will save plenty by covering over the old
siding and no one will know but you, lol. An increase in the budget
would be required for a tear-off. You can find some really ugly shit
that will cost plenty when you do tear-offs.
On Sun, 4 Mar 2007 09:46:10 -0600, email@example.com wrote:
Here in hot humid Houston, there is a serious concern about the
external siding trapping and holding moisture. Many of the wiser home
builders take this into account when they finish out the rear siding
on the brick and rock homes.
I've seen enough vinyl and aluminum siding removed from wood
exteriors where there was extensive wood rot to know it can be a
problem. Where it is difficult to remove the siding, I've seen
furring strips used to let the wood breathe.
It's humid in Houston?....hmm I'm up near Austin so humid isn't in our
vocabulary too often, except when ya'll blow it up our way.
There is a concern with this masonite in that regard though. It wicks
any moisture available, at the bottom of the sheet, especially around a
I've had to 'hide' damage at the bottom edges with a cedar trim board
There was a class-action suit brought against the manufacturer. I
participated and ended up receiving a $280 check. The inspector didn't
see as much damage as I did, apparently. He inspected when I was,
hospital/chemo/radiation/someplace. I wasn't able to give him/her 'my'
input...as if that would have helped lol.
On Mar 4, 9:46 am, firstname.lastname@example.org wrote:
You know if you decide how you want to trim your corners, there
wouldn't be any reason functionally that you would only replace one
side per year..that would certianly put less strain on the budget, and
let you do the whole thing right...it doesn't sound like you're in a
speed race, and you know some exercise would be a good thing.
If you do choose do this on you're own, I would really recommend
these: <(Amazon.com product link shortened)-
basically allow you to work at your pace and provide you with an extra
pair of hands.
Good luck...wish you the best...
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