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SECTION 04 05 23
MASONRY ACCESSORIES
 
 
Copyright 2015 - 2015 ARCAT, Inc. - All rights reserved
** ** NOTE TO SPECIFIER ** CavClear(R) / Archovations, Inc. ; masonry drainage mats and accessories.
This section is based on the products of CavClear(R) / Archovations, Inc. , which is located at:
701 Second Street
Hudson, WI 54016-0241
Tel: 715-381-5773
Fax: 715-381-9883
Email: request info (info@cavclear.com)
Web: www.cavclear.com
[ Click Here ] for additional information.
Take it to the Top with CavClear, total wall air space and moisture control. For more than 20 years CavClear, a division of Archovations, Inc., has been leading the industry, producing products that offer a completely different approach to moisture management and air space maintenance in masonry designs. CavClear was the first to offer moisture management and air space maintenance solutions installed not just at the flashing levels, but throughout the full height of masonry walls.
We continue to bring new and architecturally innovative products to ensure water management, prevent moisture related failures, manage construction costs, are easy to install, and reduce life-cycle costs. When using CavClear, you'll find you're in exceptional company, CavClear products are the preferred choice of architects, builders, masons and dealers. CavClear and our parent company Archovations, Inc. share the mission to be the industry leader throughout North America in the development and marketing of innovative and environmentally responsible drainage products.
 
PART 1 GENERAL
 
1.1
SECTION INCLUDES
 
** NOTE TO SPECIFIER ** Delete items below not required for project.
 
A.
Masonry accessories including:
1.
Insulation system.
2.
Masonry drainage mat.
3.
Masonry drainage mat MD.
4.
Rainscreen drainage mat.
5.
Weep vents.
1.2
RELATED SECTIONS
 
** NOTE TO SPECIFIER ** Delete any sections below not relevant to this project; add others as required.
 
A.
Section 04 05 00 - Common Work Results for Masonry.
B.
Section 04 20 00 - Unit Masonry.
C.
Section 04 40 00 - Stone Assemblies .
D.
Section 04 40 00 - Stone Assemblies.
E.
Section 07 19 26 - Stearate Water Repellents.
F.
Section 07 25 00 - WeatherBarriers.
G.
Section 07 60 00 - Flashing and Sheet Metal.
1.3
REFERENCES
 
** NOTE TO SPECIFIER ** Delete references from the list below that are not actually required by the text of the edited section.
 
A.
ASTM International (ASTM):
1.
ASTM C578 - Standard Specification for Rigid, Cellular Polystyrene Thermal Insulation.
2.
ASTM C591 - Standard Specification for Unfaced Preformed Rigid Cellular Polyisocyanurate Thermal Insulation.
3.
ASTM C612 - Standard Specification for Mineral Fiber Block and Board Thermal Insulation.
4.
ASTM D792, Method A - Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement.
5.
ASTM D4716 - Standard Test Method for Determining the (In-Plane) Flow Rate per Unit Width and Hydraulic Transmissivity of a Geosynthenthetic Using a Constant Head.
6.
ASTM E84 - Standard Test Method for Surface Burning Characteristics of Building Materials.
1.4
SUBMITTALS
A.
Submit under provisions of Section 01 30 00 - Administrative Requirements.
B.
Product Data: Manufacturer's data sheets on each product to be used, including:
1.
Preparation instructions and recommendations.
2.
Storage and handling requirements and recommendations.
3.
Installation methods.
C.
Shop Drawings: Coordinate with the Contractor and Architect to ensure masonry accessories are properly represented.
 
** NOTE TO SPECIFIER ** Delete the following paragraph if LEED is not applicable.
 
D.
LEED Submittals: Provide product data to document recycled content.
E.
Verification Samples: For each product to be provided, two samples, minimum size 6 inches (150 mm) square representing actual product including thickness.
1.5
QUALITY ASSURANCE
A.
Manufacturer Qualifications: Minimum 5 years experience manufacturing similar products.
1.
Manufacturer shall be a member of the Brick Industry Association (BIA).
B.
Installer Qualifications: Minimum 2 years experience installing similar products.
 
** NOTE TO SPECIFIER ** Retain below if exterior wall mockups are to be produced. Delete if not used.
 
C.
Mock-Up: Coordinate with the Contractor to provide masonry accessories for use in exterior wall mockups to evaluate installation techniques and workmanship.
1.
Install work in areas designated by Architect.
2.
Do not proceed with remaining work until workmanship is approved by Architect.
3.
Refinish mock-up area as required to produce acceptable work.
1.6
PRE-INSTALLATION MEETINGS
A.
Convene minimum two weeks prior to starting work of this section.
1.7
DELIVERY, STORAGE, AND HANDLING
A.
Deliver products in manufacturer's unopened packaging bearing the brand name and manufacturer's identification until ready for installation.
B.
Store products in clean, dry, sheltered area off the ground until ready for use.
C.
Protect products from exposure to direct sunlight and rain.
D.
Handle materials to avoid damage.
1.8
PROJECT CONDITIONS
A.
Do not install products under environmental conditions outside manufacturer's recommended limits.
1.9
SEQUENCING
A.
Ensure that products of this section are supplied to affected trades in time to prevent interruption of construction progress.
 
** NOTE TO SPECIFIER ** Delete below if warranty is not required.
 
1.10
WARRANTY
A.
Manufacturers Product Warranty: Provide manufacturer's standard warranty products are free from manufacturing defects and will not break down or deteriorate under normal conditions.
1.
Warranty Period: 10 years.
PART 2 PRODUCTS
 
2.1
MANUFACTURERS
A.
Acceptable Manufacturer: CavClear(R) / Archovations, Inc. , which is located at: 701 Second Street; Hudson, WI 54016-0241; Tel: 715-381-5773; Fax: 715-381-9883; Email: request info (info@cavclear.com); Web: www.cavclear.com
 
** NOTE TO SPECIFIER ** Delete one of the following two paragraphs; coordinate with requirements of Division 1 section on product options and substitutions.
 
B.
Substitutions: Not permitted.
C.
Requests for substitutions will be considered in accordance with provisions of Section 01 60 00 - Product Requirements.
2.2
Insulation system
 
** NOTE TO SPECIFIER ** A high functioning masonry drainage system is required to achieve maximum thermal efficiencies and reduce maintenance and repair costs. Mortar obstructions and droppings which impede drainage are prevented by installing full-height CavClear Insulation System. Cavity wall insulation system with integral masonry mat is designed to prevent mortar dropping, mold, mildew and other moisture related failures, and mortar bridges, while maintaining air space and wall cavity drainage and minimizing thermal and moisture transfer between wythes.
 
A.
CavClear Insulation System: Mortar bridging masonry drainage mat factory bonded to rigid cavity wall insulation. The masonry drainage mat shall be non-woven textile product in random pattern and have voids no greater than 1/4 inch (6 mm) in diameter, fluid conducting, non-absorbent, mold and mildew resistant polymer mesh consisting of 100% recycled plastic with binder. Insulation system is to be designed for substantially continuous installation behind the full-height of all masonry.
1.
Provide with the following insulation type:
a.
Extruded Polystyrene (XPS) to ASTM C578, Type IV.
b.
Polyisocyanurate to ASTM C591.
c.
Expanded Polystyrene (EPS) to ASTM C578.
d.
Rigid Mineral Wool to ASTM C612.
2.
Provide sheets the following size:
a.
16 by 96 inch (406 by 2438 mm).
b.
48 by 96 inch (1219 by 2438 mm).
3.
Provide with the following CavClear Masonry Matt thickness, allowing no more than 3/8 inch (10 mm) tolerance between the masonry mat and masonry wythe:
a.
3/8 inch (9.5 mm) for a total thickness of ______.
b.
1/2 inch (12.7 mm) for a total thickness of ______.
c.
3/4 inch (19 mm) for a total thickness of ______.
d.
1 inch (25.4 mm) for a total thickness of ______.
e.
1-1/4 inch (31.7 mm) for a total thickness of ______.
f.
1-3/4 inch (44.5 mm) for a total thickness of ______.
 
** NOTE TO SPECIFIER ** Masonry drainage mat is designed for air space maintenance, mortar dropping prevention and drainage system for masonry cavities. Delete if not used or if specified with insulation system above.
 
2.3
Masonry DRAINAGE mat
A.
CavClear Masonry Drainage Mat: Full-height air space maintenance and cavity drainage mat specifically designed for substantially continuous installation behind the full-height of all masonry cavities to prevent mortar from making contact with the backup construction and ensure moisture management. The masonry mat shall be non-woven textile product in random pattern and have voids no greater than 1/4 inch (6 mm) in diameter, fluid conducting, non-absorbent, mold and mildew resistant polymer mesh consisting of 100% recycled plastic with binder.
1.
Provide mats the following size:
 
** NOTE TO SPECIFIER ** Select size, 16 by 96 inch (406 by 2438 mm) is standard. Delete not required.
 
a.
16 by 96 inch (406 by 2438 mm).
b.
48 by 96 inch (1219 by 2438 mm).
2.
Provide in the following thickness, allowing no more than 3/8 inch (10 mm) tolerance between the masonry mat and masonry wythe:
 
** NOTE TO SPECIFIER ** Select thickness. Delete not required.
 
a.
1/2 inch (12.7 mm).
b.
3/4 inch (19 mm).
c.
1 inch (25.4 mm).
d.
1-1/4 inch (31.7 mm).
e.
1-3/4 inch (44.5 mm).
 
** NOTE TO SPECIFIER ** Masonry drainage mat MD unique configuration provide uniformity and structural integrity to stand up to the weight of mortar. 90 percent open mesh allows for proper air movement and drainage. Delete if not required.
 
2.4
Masonry DRAINAGE mat MD
A.
CavClear Masonry Drainage Mat MD: Mortar deflection device is manufactured of non-absorbent polymer mesh of 100 percent recycled plastic. used in conjunction with standard masonry cavity walls at flashing locations, such as composite, single wythe and veneer applications. The molded polymer core geometric design allows moisture to seep down through any mortar droppings and weep out of the wall through mortar free weep vents.
1.
Dimensions: 11 inch (279 mm) wide by 60 inch (1524 mm) long.
2.
Provide in the following thickness, allowing no more than 3/8 inch (10 mm) tolerance between the masonry mat and masonry wythe:
 
** NOTE TO SPECIFIER ** Select thickness. Delete not required.
 
a.
1 inch (25.4 mm).
b.
2 inch (50 mm).
 
** NOTE TO SPECIFIER ** It is important to design and construct an effective rainscreen system that will provide a means for drainage and ventilation. Moisture will find its way into exterior wall systems by way of gaps, penetrations, cracks in the surface of the cladding material, and cracked mortar joints. Since it provides the drainage and ventilation function for the system, CavClear(R) Rainscreen Drainage Mat is an integral part of a successful rainscreen wall design. CavClear Rainscreen Drainage Mat is designed to be installed behind manufactured or thinset stone, stucco, cedar and lap siding applications to manage moisture and vapor. Delete if not required.
 
2.5
Rainscreen DRAINAGE Mat
A.
CavClear Drainage Rainscreen Mat: 95 percent open design creates a continuous capillary break and channel for moisture to drain and accelerate drying exterior cladding assemblies. Durable polymer material is resistant to most known corrosive chemicals and does not provide a food source for mold or mildew. 2-ply design features a backer fabric to improve tensile and compressive strength and serve as an integrated insect screen.
1.
Core Material: Polypropylene.
 
** NOTE TO SPECIFIER ** Select thickness and roll length. Delete not required.
 
2.
Dimensions: 1/4 inch (6 mm) thick, 61.5 foot (18.75 m) long rolls, 39 inch (99 cm) wide, to cover 200 square feet (18.58 square meters) and the following properties:
a.
Density, Specific Gravity: 0.901 g/cm3 per ASTM D792, Method A.
b.
Porosity, Open Space: 93.8 percent.
c.
Hydraulic Transmissivity: 3.70 gpm / ft width per ASTM D4716.
d.
Air Transmissivity: 15.8 cu. ft./min.ft width per ASTM D4716.
e.
Flame Spread and Smoke Index: Class A Fire Rated per ASTM E84.
3.
Dimensions: 3/8 inch (10 mm) thick, 40 foot (12.19 m) long rolls, 39 inch (99 cm) wide, to cover 130 square feet (12.08 square meters) and the following properties:
a.
Density, Specific Gravity: 0.903 g/cm3 per ASTM D792, Method A.
b.
Porosity, Open Space: 95.3 percent.
c.
Hydraulic Transmissivity: 7.01 gpm / ft width per ASTM D4716.
d.
Air Transmissivity: 54.5 cu. ft./min.ft width per ASTM D4716.
e.
Flame Spread and Smoke Index: Class A Fire Rated per ASTM E84.
2.6
Weep vents
A.
CavClear Weep Vents: Non-woven mesh with M-notched bottom.
 
** NOTE TO SPECIFIER ** Select color. If more than one color is used assign types to correspond with mortar color designations. Delete colors not used.
 
1.
Provide the following color to match mortar:
a.
White.
b.
Manila.
c.
Harvest Gold.
d.
Rose/Salmon.
e.
Red.
f.
Gray.
g.
Charcoal.
h.
As selected by the Architect.
PART 3 EXECUTION
 
3.1
EXAMINATION
A.
Do not begin installation until substrates have been properly prepared.
B.
If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
3.2
PREPARATION
A.
Clean surfaces thoroughly prior to installation.
B.
Prepare surfaces using the methods recommended by the manufacturer for achieving the best result for the substrate under the project conditions.
3.3
INSTALLATION
 
** NOTE TO SPECIFIER ** Delete if not required.
 
A.
Insulation System Installation:
1.
Install insulation system continuously in exterior masonry cavities during construction of the exterior wythe.
2.
Install horizontally between wall ties or joint reinforcement.
3.
Stagger end joints in adjacent rows.
4.
Butt adjacent pieces to moderate contact.
5.
Fit to perimeter construction and penetrations without voids.
6.
Do not install more insulation system than can be covered by masonry in the same day.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
B.
Masonry Drainage Mat Installation:
1.
Install masonry drainage mat continuously throughout full-height of all exterior masonry cavities during construction of exterior wythe in accordance with the manufacturer's installation instructions.
2.
Verify that air space width is no more than 3/8 inch (9.5 mm) greater than masonry drainage mat thickness.
3.
Install horizontally between joint reinforcement.
4.
Stagger end joints in adjacent rows.
5.
Use multiple layers at bottom of wall and above through-wall flashings when air space depth exceeds masonry mat thickness by more than 3/8 inch (9.5 mm).
6.
Extend extra mat at least to top of base flashing. Butt adjacent pieces to moderate contact.
7.
Fit to perimeter construction and penetrations without voids.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
C.
Masonry Drainage Mat MD Installation:
1.
Install by placing the strips at all flashing locations.
2.
Mechanical attachment is not required.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
D.
Rainscreen Drainage Matt Installation:
 
** NOTE TO SPECIFIER ** Some regions may require two layers of weather resistant barrier. Check local codes for more information.
 
1.
Apply a weather resistant barrier over exterior sheathing.
2.
Install rainscreen drainage mat after windows and doors have been properly installed and flashed.
3.
Install in accordance with manufacturer's instructions.
 
** NOTE TO SPECIFIER ** Delete if not required.
 
E.
Weep Vent Installation:
1.
Place in head joints at exterior wythe of cavity wall located immediately above ledges and flashing, spaced 24 inch (609 mm) on center unless otherwise indicated.
2.
Leave the side of the masonry units forming the vent space unbuttered and clear of mortar.
3.
Install with notched side down. Slide vent material into joints as the two masonry units forming the weep vents are placed.
3.4
CLEANING AND PROTECTION
A.
Clean products in accordance with the manufacturers recommendations.
B.
Protect installed products until completion of project.
END OF SECTION