Maibec shingles

[falconecorp]

We installed Maibec Nantucket shingles pre-finished with Cabot stain. They are moving whenever exposed to direct sunlight. The rep's are telling me that the movement we are experiencing is acceptable and is to be expected. I find it hard to believe that could be true and this to be normal.... The owner of the home is insisting there is something wrong with the shingles, and I resolve this situation (replace all shingles with something else) before they will pay me. Maibec has walked away from me, with no resolution. Cabot Stain seems to be on the side of Maibec and aren't willing to commit to anything or analyze the samples as promised before they knew it was a maibec shingle..... I desperately need help..... I need an unbiased expert evaluation of the product and the installation to see if the product is defective or if there is some other underlying problem....

do you know of anyone with no ties to Maibec, Cabots, or Capital forest products that I could hire to evaluate this issue.... someone who's expertise is relative to white cedar. Or a place that could analyze shingle/stain samples.

Any information would be Greatly Appreciated. Thank You again for your time.

[dgbldr]

http://www.cedarbureau.org/

I would talk to them about experts available in your area to provide evaluation.

What do you mean they're moving? How?

dg

[butcher]

All Cedar shingles move a little even when they are sealed. How much are they moving? Did you seal all cut edges? Any pictures?

[falconecorp]

They are cupping, curling, and pulling away from house when in direct sunlight. I expect some level of movement from any shingle, but these are bad... as the owner said to me "the house comes alive", and at the end of a sunny day it looks like it's 100 years old. (great if you want that look). the shingles were pre-stained, and we wiped every cut with stain as wee installed them.I will try to post pics later in day.
Thank you, any info will be very helpfull

[Mlandry]

What is the exposure to the weather of your courses?

[falconecorp]

5 1/2" to the weather. Installed over 5/8" D.fir plywood with Tyvek. Nailed 3/4" in from each end (only 2 nails per shingle) and 1" above but line. We followed the sugested installation as per the instructions.

[monty1]

Sorry no help here other than i have installed lots of Maibec Shingles on gables with no issues whatsoever.

[Graacc1]

5 1/2" to the weather. Installed over 5/8" D.fir plywood with Tyvek. Nailed 3/4" in from each end (only 2 nails per shingle) and 1" above but line. We followed the sugested installation as per the instructions.

Just a few thoughts, may or may not be relavent to your situation,
what's the grading of the cedar?
Do they (Maibec) recommend using a drainage plane? This might help reduce the cupping. Especially since you're seeing it when the sun hits, trapped moisture could be the cause of the cupping, along with a lower grade shingle, at least that's my guess.
It seems you've done everything else right, I'd hound Maibec, even mention you willingness to bad-mouth them(truthfully) for their un-willingness to stand behind their product. I'd be willing to mention this situation at the next "Live" event!

Geoff

[falconecorp]

The shingle we used was their "top of the line".... they don't offer a better grade.... I agree moisture may be the problem. They told me that moisture was introduced as some point and may be part of the problem.... they couldn't say when, just at some point??? If they wanted me to install a drainage plane I would have with out a second thought.
when is the next "live" event?, and what is that about
Thanks,
Steve

[Mlandry]

Could you possibly post some pictures of the problem?

[falconecorp]

Attached some photo's (hopefully)

[falconecorp]

having some trouble uploading more then one at a time.... sorry

[semple]

did you hand nail or shoot them with a gun and if yu shot them in was the nail head flush or recessed

[falconecorp]

Hand nailed, head set flush

[shiloh grp]

Falc,

That does look pretty bad. Probably dead South? But it has been dry. Assuming they were boxed, did you keep the shingles covered or did they get any rain before they were unboxed? We used the same product (factory dipped) on a recent project and I was concerned about cupping too at first but the shingles relaxed as they dried from both sides. If this was a very recent installation, I would tell the customer to give it time. Cedar will acclimate and your corners and edges will open a bit but the cupping will minimize.

The most important thing right now is that you get paid. I suggest you spend some time hosing down the wall at the end of the day and check it in the AM the following day. Take some before and after (hosing ) photos.

Henry