Question of the Week 4/30/17

Questions of the week;

Introduction and requirements:

A member of the Award Committee will post a question, at a random day/time.

A competing member may make one post per question thread to answer the question and the member’s winning entry must have all parts of the question answered completely in that one post. Editing your one answer post allowed will result in disqualification.

Winnings will be limited to no more than 6 times in a given year, the objective is to allow as many Members a chance to win as possible.
Any disregard to the above and divulging the correct answers will forfeit the weekly winnings.

So please refrain from participating if you have already won in the maximum for the Year.

First correct answer (as judged by the Awards Committee or Poster of the Question) wins.

The lucky winner will get a case of “Now that you’ve had a Home Inspection Books” shipped to them at their address on file. Make sure your Address on File with Inachi is correct.

Courtesy of Nick Gromicko.

Winners of the Question of The Week shall request their prize by emailing fastreply@nachi.org and submitting their Mailing address for shipping.

Allow 2 weeks for delivery.

Unfortunately Paul is unavailable for this week. So you will have to deal with me. :wink:

Questions

**1. Can gypsum sheathing/air/weather barrier be eliminated and extruded
Polystyrene continuous insulation be installed directly to steel stud framing with joints taped for air/weather resistance behind masonry veneer? Yes/No
**
2. For a weather barrier to be considered vapor permeable, it must have a vapor permeance of at least 6 perms. T/F

3. In brick masonry, the term Frog means;

a. A special shape brick to create jumps on wall line objects
b. A French brick laying mason
c. A curved brick
d. A brick with a recessed indentation

4. What is the term Pig stand for in brick construction?

a. A mason that eats like one.
b. A mason the lays brick very sloppy
c. A mason laying brick corners out of plumb and level.
d. Topping a brick wall with one brick course higher on one end than the other.

N
f
d
d

Y
f
d
d

Y
f
d
c

Good Morning all and Congratulations to David Asselin for getting the QOTW.

**

  1. Can gypsum sheathing/air/weather barrier be eliminated and extruded
    Polystyrene continuous insulation be installed directly to steel stud framing with joints taped for air/weather resistance behind masonry veneer?**

Yes. If gypsum sheathing is not otherwise required, FOAMULAR
®
XPS may be attached directly to the steel stud framing with
joints taped using Owens Corning
®
JointSealR™ Joint Sealing Tape. The assembly has passed NFPA 285 (fire propagation, ASTM
E2357 (air leakage and ASTM E331 (water leakage) testing.
**
2. For a weather barrier to be considered vapor permeable, it must have a vapor permeance of at least 5 perms. True**

For a weather barrier to be considered vapor permeable, it must have a vapor permeance of at least 5 perms (IRC) or 10 perms (IBC) as tested per ASTM E96 B (desiccant method).
http://www.dupont.com/products-and-services/construction-materials/building-envelope-systems/articles/wall-sheathing-comparison.html

3. In brick masonry, the term Frog means;

d. A brick with a recessed indentation
http://brickmailbox.net/build/top-10-need-to-know-brick-masonry-terms-and-more.html

4. What is the term Pig stand for in brick construction?

d. Topping a brick wall with one brick course higher on one end than the other.

On a brick building with multiple facades, masons use story poles to assure that the brick courses will work with top of windows and doors on different elevations. With a big crew of masons, it is very easy to get the story poles out of sync and they reach the roof edge or top of the wall with an extra course of bricks on one facade’ to the other.
Not easily corrected. :slight_smile:

Awesome thanks

Thanks Marcel for the great questions and taking the time to help us learn something new today.

Thanks John and all you guys are doing great. It is hard to find questions to stomp you guys. :wink:

Got 'em…Christopher.