On Wed, 29 Jan 2014 15:35:09 -0600, Swingman wrote:

On 1/29/2014 3:05 PM, Markem wrote:
And millions that are not as water tight, so to err on the side of
caution is not a bad idea. I have found it really difficult to
determine whether it is "constructed right" by looking from the
ground.


Properly installed, "water and ice shield", you should be able to see it
under the drip edge, where it has been rolled over the fascia ... you
just have to get close enough to see if it's there.

It it is over the drip edge, the installation is suspect.

Amazingly enough, we do spec "water and ice shield" in our roofing
contracts down here in Texas ... at least those interested in doing
things right do.

But if you now have a nice accumulation of snow and do not "know" go
out and do the broom thing, get a bit of exercise too.

If it was my house getting a new roof, I would go for over kill and do
the whole roof with "water and ice shield". But the over the eaves and
valleys is best building practice for a roof.

My roof does not have any of the shielding, it has had over a foot of
snow maybe three times in the 6 years we have been here. It does not
leak, it is 3/12 pitch.

Mark