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Has anyone put siding *over* existing wood siding?
Posted by: pdq
Date: July 15, 2018 08:08AM
Kids bought an older postwar saltbox house with aluminum siding, and a detached one car garage that’s been painted for 50 years at least. Not insulated, just studs on the inside, wood clapboard is in decent shape, except for peeling paint, which seems to me would be an enormous job to strip. They’ve gotten a quote of $3000 from a painter to strip and repaint. They’re probably not going to stay there forever.

Tell me why not to just put vinyl/steel/aluminum siding right over the clapboard and be done with it?
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Re: Has anyone put siding *over* existing wood siding?
Posted by: billb
Date: July 15, 2018 08:35AM
Our previous house had siding over cedar shingles. We tore the siding off .Underneath were beautiful aged hard cedar shingles. Unfortunately to fit the siding they cut a lot of the architectural details from window/door trim and it was a bit of working restoring some of that. Often existing siding is removed to fit a modern breathing membrane and maybe insulation prior to installing the new siding.



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Re: Has anyone put siding *over* existing wood siding?
Posted by: Acer
Date: July 15, 2018 08:40AM
I put vinyl over peeling wood siding on my previous house. I put a later of rigid foam, then the new siding. The foam gave insulation as well as a smooth surface for the next later of siding. 20 years later the house still looks good. I had to build out some of the trim (not a lot) to keep it from receding. This was wood, though, perhaps aluminum has other considerations.

While was at it, I had the walls blown with cellulose; the new siding covered the holes.

That said, tear-off is not that bad an idea; it's work, but not technically difficult. Grab a flat crowbar and have at it. You'll get a few bucks for the aluminum.



Edited 1 time(s). Last edit at 07/15/2018 08:41AM by Acer.
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Re: Has anyone put siding *over* existing wood siding?
Posted by: pdq
Date: July 15, 2018 09:35AM
Quote
Acer

That said, tear-off is not that bad an idea; it's work, but not technically difficult. Grab a flat crowbar and have at it. You'll get a few bucks for the aluminum.

Just to be clear, there is aluminum siding on the house, which is fine and staying. The issue is the detached one car garage, which has (and needs) no insulation, and has wood clapboard existing siding with 50 coats of peeling paint. Can I just go over this existing siding with aluminum or vinyl siding?
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Re: Has anyone put siding *over* existing wood siding?
Posted by: Rolando
Date: July 15, 2018 09:55AM
My parent's had a asbestos siding. The family, including 7 year old me, helped manually remove it in the 70s. They had foam backed aluminum siding on there since. It's still there.

Aluminum is great. It resists corrosion, doesn't get brittle from Extreme sun (in Texas). I'm told vinyl can get brittle from extreme cold as well.

I guess the worst thing about aluminum siding is the look. If you don't like it, or buyers don't, then it could impact resale.



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Re: Has anyone put siding *over* existing wood siding?
Posted by: billb
Date: July 15, 2018 10:33AM
Quote
pdq
Quote
Acer

That said, tear-off is not that bad an idea; it's work, but not technically difficult. Grab a flat crowbar and have at it. You'll get a few bucks for the aluminum.
Can I just go over this existing siding with aluminum or vinyl siding?

Yes, but one issue on an existing layer is getting the new layer to lie flat. There is usually some sort of membrane put down first which can serve a number of purposes beyond providing a flat(ter) mounting surface.
Then there is the trim and where/how roof drip edges meet .
Sometimes there is enough prep work needed that's it is less time consuming to just rip the existing surface off and start new.



The Phorum Wall keeps us safe from illegal characters and words
The doorstep to the temple of wisdom is the knowledge of one's own ignorance. -Benjamin Franklin
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Re: Has anyone put siding *over* existing wood siding?
Posted by: Acer
Date: July 15, 2018 10:47AM
To get it to lie flat over existing siding, I have seen thin foam that comes in folded sheets. The insulation is provides is minimal, it's main function is to smooth surface. Or you can run vertical furring strips.
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Re: Has anyone put siding *over* existing wood siding?
Posted by: C(-)ris
Date: July 15, 2018 12:03PM
Quote
pdq
Kids bought an older postwar saltbox house with aluminum siding, and a detached one car garage that’s been painted for 50 years at least. Not insulated, just studs on the inside, wood clapboard is in decent shape, except for peeling paint, which seems to me would be an enormous job to strip. They’ve gotten a quote of $3000 from a painter to strip and repaint. They’re probably not going to stay there forever.

Tell me why not to just put vinyl/steel/aluminum siding right over the clapboard and be done with it?

Don’t do it. The previous owners of our house did just that. They used wooden slats to keep it all level. The problem is that the old wood is still rotting under it and the insulation value sucks because there are holes and cracks everywhere. Wasps especially like to hide in all the gaps this method leaves.



C(-)ris
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Re: Has anyone put siding *over* existing wood siding?
Posted by: Numo
Date: July 15, 2018 01:04PM
When we had vinyl siding put on last winter, the contractor considered installing it over the existing cedar panel siding. But they decided to strip off the panels because they were in poor shape. Overall, I think it was a cleaner solution and allowed them to do a better job installing the vapor barrier. On the down side, I’ll be picking up old nails from the ground around the house for years.

I’m not sure if an unheated garage needs a vapor barrier or not.
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Re: Has anyone put siding *over* existing wood siding?
Posted by: RE:up
Date: July 15, 2018 01:38PM
Quote
Ammo
On the down side, I’ll be picking up old nails from the ground around the house for years.

Old speaker magnet
Attach to old broom handle
With new duct tape
Sweep for Fe containing bits and pieces.
=
No more nails on your lawn
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Re: Has anyone put siding *over* existing wood siding?
Posted by: pdq
Date: July 15, 2018 03:11PM
Quote
Ammo
I’m not sure if an unheated garage needs a vapor barrier or not.

It doesn’t.
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Re: Has anyone put siding *over* existing wood siding?
Posted by: NewtonMP2100
Date: July 16, 2018 08:12AM
....so someone is getting wood.....on the side.....??



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