| Author |
Message |
Brian Payne, AIA
Senior Member
Username: brian_payne
Post Number: 59
Registered: 01-2014
| | Posted on Friday, December 04, 2015 - 10:52 am: |    |
Anyone have any spec language they use for parging concrete or masonry? I cant seam to locate the info in either MasterSpec or Speclink. What section do you normally place it?
Thanks. |
Wayne Yancey
Senior Member
Username: wayne_yancey
Post Number: 770
Registered: 01-2008
| | Posted on Friday, December 04, 2015 - 11:04 am: | |
Brian,
This from my specification for parging over concrete concrete-face perimeter foundation insulation. Don't ask why. Project was in Canada, hence the metric units.
PART 2
Parging: W.R. Meadows 825 PARGE-ALL: Single-component pre-mixed blend of sand, cement, chemical admixtures, polypropylene fibers, and acrylic cement modifiers.
PART 3
D. Parging:
1. Apply parging with a trowel, masonry brush, or other suitable tool, to a thickness of 3 mm (1/8 inch) and create the desired surface texture immediately.
2. Cover only about 1 m² (10.76 ft.²) section at one time.
3. Protect against rapid surface evaporation due to heat and wind. Allow to air cure for 48 hours if painting is desired.
6. DO NOT apply parging when the temperature is expected to be below 4 degrees C (40° F) within 24 hours or when rain is imminent; or provide temporary enclosures and heat for minimum of 48 hours. |
Brian Payne, AIA
Senior Member
Username: brian_payne
Post Number: 60
Registered: 01-2014
| | Posted on Friday, December 04, 2015 - 11:13 am: | |
Thanks. Parging over perimeter foundation insulation is actually pretty common in my area. What section did you include this info in? |
Brian Payne, AIA
Senior Member
Username: brian_payne
Post Number: 61
Registered: 01-2014
| | Posted on Friday, December 04, 2015 - 11:40 am: | |
Found it in BSD. 03 0100 Maintenance of Concrete |
Wayne Yancey
Senior Member
Username: wayne_yancey
Post Number: 771
Registered: 01-2008
| | Posted on Friday, December 04, 2015 - 11:45 am: | |
It was in the thermal insulation section, subordiante to the concrete-faced insulation.
You could consider adding to concrete finishes if you use such a section. Alternatively, include in Section 033000 under the finishes for formed surfaces. |
Jeffrey Wilson CSI CCS SCIP
Senior Member
Username: wilsonconsulting
Post Number: 185
Registered: 03-2006
| | Posted on Friday, December 04, 2015 - 01:03 pm: | |
Parging is addressed in MasterSpec Section 042000.
Jeffrey Wilson CCS CSI SCIP
Wilson Consulting Inc
Ardmore PA |
John Bunzick, CCS, CCCA, LEED AP
Senior Member
Username: bunzick
Post Number: 1658
Registered: 03-2002
| | Posted on Monday, December 07, 2015 - 11:03 am: | |
If this is applied over insulation, not directly to concrete, I would not consider it parging. This sounds more like stucco, and would need to perform more like stucco as well. (Actually, I guess it is stucco.) Since concrete parging (as I think of it) is applied directly to, and adheres to, a rigid, durable surface, its performance requirements would be quite different than something applied over insulation. That products needs some mechanism to bond to the substrate, some flexibility, and some way (fibers or lath) to impart tensile strength. A thin parge coat would quickly fail applied to insulation. |
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