flashing and stucco

MJW · 12-20-2009, 04:50 PM

Quote:

Originally Posted by dmc@RCR

a. Cut the nails from the inside with a sawzall and pull the flashing from the exterior. Not easy.

b. Cut the stucco off the roof a few inches, re flash, install wood trim in place of stucco.

If you're gonna do this, flash above the board also. It would be best to use something cedar or some type of PVC board, so you don't have to paint it every year.

Decoramould · 12-21-2009, 06:32 AM

Obviously, your best option is to rip off whatever is currently there. It was very poorly designed/specified, and poorly installed as well. You can clearly see water on the inside, and since this is a "rainscreen" system, it's obviously failing.

For starters, I don't see what flashing at the bottom is going to do. Any water that gets behind has no weather barrier to run down and get diverted. Adding a flashing isn't going to fool anyone - and if the next home owner gets a half decent inspector there's no way they'll miss the mess that is that "cladding".

I also wouldn't fill in between the studs again (with plywood or insulation), as that will ruin any ventilation/air exchange you are currently getting. Air exchange is what is needed to prevent mold and rot.

I don't know what to say - besides that flashing is the least of your problems.

Decoramould · 12-21-2009, 06:33 AM

Quote:

Originally Posted by MJW

If you're gonna do this, flash above the board also. It would be best to use something cedar or some type of PVC board, so you don't have to paint it every year.

There are actually exterior trim products on the market that aren't PVC (which tends to expand/contract and peel due to temperature fluctuations) - and work immaculately with stucco.
And you want to avoid using wood as trim on the exterior of your home - it will eventually rot.

sharp · 12-21-2009, 09:54 PM

It may have been poorly installed, but it lasted over 80 years. I am the new owner so I am not concerned about future owner as much as I am concerned about future issues.
BTW my inspector missed it 2 months ago.\

What exterior trim products are there?

I recently has a stucco pro in, an idea that was offered was to bring flashing up the existing stucco and lay a new coat over the new flashing.
Any thoughts on this?

sharp · 12-21-2009, 09:59 PM

also, when stripping down the walls the soffits were filled with blown in insulation, is this right? i understand about the ventilation, but I will have to insulate as it gets cold here. Will just insulate the walls, and remove the insulation in the soffits. Would this work better?

Decoramould · 12-25-2009, 08:28 AM

Quote:

Originally Posted by sharp

also, when stripping down the walls the soffits were filled with blown in insulation, is this right? i understand about the ventilation, but I will have to insulate as it gets cold here. Will just insulate the walls, and remove the insulation in the soffits. Would this work better?

IIRC you want the soffits to remain clear to vent the roof/attic. What you want to do is put insulation between the beams that compose the ceiling of your top floor, not the rafters of the roof.

BASF has a blown-in insulation that can go between the roof rafters and will act as a moisture barrier, in which case you don't need to vent the attic. You will need to check local building codes though as some municipalities still don't allow it.
Here: http://www2.basf.us/urethanechemical...tite/index.htm
Edit: Better link: http://www.basf-pfe.com/index.php?lo...ction=ceilings

Dave The Roofer · 12-31-2009, 12:26 PM

Quote:

Originally Posted by sharp

The flashing under my stucco is rusted and has many holes. There is water leaking through a majority of them on all four sides of the house.
I would like to know how this may be addressed.
The current flashing is stepped and under both the stucco and the first layer of shingles. If it were to be re flashed would the stucco have to be removed and then reapplied after the flashing? This makes sense but the is nothing behind the stucco except insulation and 2X4s.

How should this be repaired?
Info would be appreciated before a contractor/rofer takes me or a ride and doesn't do the right thing.
Thanks

Does the Stucco Hold water?

We do not use much stucco in Maine

sharp · 01-01-2010, 09:05 AM

In heavy rain water does penetrate the stucco. The inside gets very damp.