SECTION 07 46 00

DRAINAGE MAT

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PART 1    GENERAL.
1.1	SECTION INCLUDES.
A.	Drainage Mat: Randomly oriented geometric patterned drainage and ventilation mat designed to eliminate moisture and moisture vapor in siding applications.
1.	ViperVent CDR.
2.	Driwall Rainscreen 013-1.
3.	Driwall Rainscreen 020-1.
4.	Driwall Rainscreen UV 10 mm.
5.	Driwall Rainscreen 10 mm.
6.	Driwall Rainscreen 075-1.
B.	Furring Strip: Randomly oriented geometric patterned rollable furring strip designed to eliminate moisture and moisture vapor in wall applications.
1.	Easy-Fur.
1.2	RELATED SECTIONS.
A.	Division 04 - Masonry: Wall construction of masonry veneer.
B.	Division 07 - Thermal and Moisture Protection: Wall construction of siding veneers.
C.	Section 09 24 00 - Cement Plastering: Wall construction of stucco.
1.3	REFERENCES.
A.	ASTM E 84 - Standard Test Method for Surface Burning Characteristics of Building Materials.
B.	ASTM E 2273 - Standard Test Method for Determining the Drainage Efficiency of Exterior Insulation and Finish Systems (EIFS) Clad Wall Assemblies.
C.	UL Fire Resistance Rated.
1.	Refer to UL Product iQ Database for fire rated assemblies with drainage mat and furring strips.
1.4	SUBMITTALS.
A.	Submit under provisions of Section 01 33 00.
B.	Product Data:
1.	Manufacturer's data sheets on each product to be used.
2.	Preparation instructions and recommendations.
3.	Storage and handling requirements and recommendations.
4.	Typical installation methods.
C.	Verification Samples: Two representative units of each type, size, pattern, and color.
D.	Shop Drawings: Include details of materials, construction, and finish. Include relationship with adjacent construction.
1.5	QUALITY ASSURANCE.
A.	Manufacturer Qualifications: Company specializing in manufacturing products specified in this section with a minimum of five years documented experience.
B.	Installer Qualifications: Company specializing in performing Work of this section with minimum two years documented experience with projects of similar scope and complexity.
C.	Source Limitations: Provide each type of product from a single manufacturing source to ensure uniformity.
D.	Mock-Up: Construct a mock-up with actual materials in sufficient time for Architect's review and to not delay construction progress. Locate mock-up as acceptable to Architect and provide temporary foundations and support.
1.	The intent of a mock-up is to demonstrate quality of workmanship and visual appearance.
2.	If the mock-up is not acceptable, rebuild the mock-up until satisfactory results are achieved.
3.	Retain mock-up during construction as a standard for comparison with completed work.
4.	Do not alter or remove mock-up until work is completed or removal is authorized.
5.	Subject to compliance with requirements, approved mockups may become part of the completed Work if undisturbed at time of Substantial Completion.
1.6	PRE-INSTALLATION CONFERENCE.
A.	Convene a conference approximately two weeks before scheduled commencement of the Work. Attendees shall include Architect, Contractor and trades involved. Agenda shall include schedule, responsibilities, critical path items and approvals.
1.7	DELIVERY, STORAGE, AND HANDLING.
A.	Store and handle in strict compliance with manufacturer's written instructions and recommendations.
B.	Protect from damage due to weather, excessive temperature, and construction operations.
1.8	PROJECT CONDITIONS.
A.	Maintain environmental conditions (temperature, humidity, and ventilation) within limits recommended by manufacturer for optimum results. Do not install products under environmental conditions outside manufacturer's recommended limits.
1.9	WARRANTY.
A.	Manufacturer's standard limited warranty unless indicated otherwise.
PART 2    PRODUCTS.
2.1	MANUFACTURERS.
A.	Acceptable Manufacturer: Keene Building Products, which is located at:<BR />2926 Chester Ave.<BR />Cleveland, OH 44114<BR />Toll Free Tel: 877-514-5336<BR />Tel: 440-605-1020<BR />Fax: 440-605-1120<BR />Email: request info (info@keenebuilding.com);Web: https://www.keenebuilding.com 
B.	Substitutions: Not permitted.
C.	Requests for substitutions will be considered in accordance with the provisions of Section 01 60 00.
2.2	PERFORMANCE AND DESIGN REQUIREMENTS.
A.	Drainage of liquid moisture and ventilation between sheathing and exterior veneer.
B.	Class A flame spread per ASTM E84.
C.	ASTM E 2273 - Standard Test Method for Determining the Drainage Efficiency of Exterior Insulation and Finish Systems (EIFS) Clad Wall Assemblies.
D.	Hydrophobic compound.
E.	Resistant to chemicals and UV radiation.
F.	Does not support mold growth.
2.3	PRODUCT TYPES.
A.	Drainage Mat: Randomly oriented geometric patterned drainage and ventilation mat designed to eliminate moisture and moisture vapor in siding applications. Three-dimensional mat heat laminated to a non-woven lightweight, vapor permeable fabric. The monofilament mat is heat welded at the junctions to form a resilient structure that isolates veneer from the back-up.
1.	Drainage Mat Types:
a.	ViperVent CDR Vent.
1)	Physical Characteristics:
a)	Applications in cedar shingle/shake roofing and siding assemblies.
b)	Thickness: 0.30 inch (7.6 mm).
c)	Weight: 9.91 oz/sq. yd. (336 g/sq m).
d)	Width: 48 inches (122 cm).
e)	Roll Length: 60 feet (18.3 m).
b.	Driwall Rainscreen 013-1.
1)	Physical Characteristics:
a)	Thickness: 0.13 inch (3.8 mm).
b)	Weight: 9.0 oz/sq. yd. (213.3 g/sq m).
c)	Width: 48 inches (122 cm).
d)	Roll Length: 150 feet (45.9 m).
c.	Driwall Rainscreen 020-1.
1)	Physical Characteristics:
a)	Thickness: 0.25 inch (6 mm).
b)	Weight: 12.7 oz/sq. yd. (431 g/sq m).
c)	Width: 48 inches (122 cm).
d)	Roll Length: 65 feet (19.8 m).
d.	Driwall Rainscreen UV 10 mm.
1)	Physical Characteristics:
a)	Use for open joint cladding; limitation: maximum open gap 3/8 inch (9.53 mm), minimum cladding thickness of 3/8 inch (9.53 mm).
b)	Thickness: 0.40 inch (10 mm).
c)	Weight: 18.9 oz/sq. yd. (641 g/sq m).
d)	Width: 48 inches (122 cm).
e)	Roll Length: 45 feet (13.7 m).
e.	Driwall Rainscreen 10 mm.
1)	Physical Characteristics:
a)	Thickness: 0.40 inch (10 mm).
b)	Weight: 18.9 oz/sq. yd. (641 g/sq m).
c)	Width: 48 inches (122 cm).
d)	Roll Length: 45 feet (13.7 m).
f.	Driwall Rainscreen 075-1.
1)	Physical Characteristics:
a)	Thickness: 0.75 inch (19 mm).
b)	Weight: 18.6 oz/sq. yd. (631 g/sq m).
c)	Width: 48 inches (122 cm).
d)	Roll Length: 50 feet (15.2 m).
B.	Furring Strip: Randomly oriented geometric patterned 4 inches (101.60 mm) wide rollable furring strip designed to eliminate moisture and moisture vapor in wall applications. Three dimensional material heat welded at junctures to form a rigid structure that isolates veneer and siding from the back-up substrate.
1.	Furring Strip Type:
a.	Easy-Fur.
1)	Roll Physical Characteristics:
a)	Thickness: 0.4 inch (11 mm).
b)	Width: 4 inches (122 cm).
c)	Length: 25 feet (19.8 m).
PART 3    EXECUTION.
3.1	EXAMINATION.
A.	Do not begin installation until the substrates have been properly constructed and prepared.
B.	If substrate preparation is the responsibility of another installer, notify Architect in writing 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	DRAINAGE MAT INSTALLATION.
A.	Install in accordance with manufacturer's instructions.
B.	Inspection of Wall Conditions and Weather Barrier/Building Wrap: Ensure that the wall is free from structural defects, that any membranes or flashing are properly installed, and that the final system will have a path for moisture to escape from the wall.
C.	Installation for Manufactured Stone and Thin Set Natural Stone:
1.	Install building paper or house wrap and flashing to manufacturer's recommendations.
2.	Place drainage mat horizontally against exterior wall fabric side out, entangled core to the building interior. Starting at the bottom of the wall, position the first piece of drainage mat where the bottom edge of the stone will meet the drip edge.
3.	Mechanically fasten with a staple hammer, large head nail or washer and screw one fastener for each square foot (0.1 sq. m). When installing over concrete or block back-up walls that do not accept mechanical fasteners hold in place with small dabs of glue every 2.0 feet (0.61 m). Do not fasten through flashing.
4.	Seam adjacent piece with the selvage edge overlapping the top of the lower drainage mat piece.
5.	Install expanded metal lathe over the drainage mat according to the stone manufacturer's recommendations.
6.	Apply scratch coat according to stone manufacturer's recommendations.
7.	Install manufactured stone according to guidelines. Provide a weep method for ventilation and drainage mat.
8.	Trim drainage mat around all penetrations, windows, and doors so that the material is flush to the flashing.
D.	Installation for Stucco:
1.	Install building paper or house wrap and flashing to manufacturer's recommendations.
2.	Place drainage mat horizontally against exterior wall fabric side out, entangled core to the building interior. Starting at the bottom of the wall, position the first piece of drainage mat where the bottom edge of the stucco will meet the casing bead.
3.	Mechanically fasten with a staple hammer, large head nail or washer and screw one fastener for each square foot (0.1 sq. m). When installing over concrete or block back-up walls that do not accept mechanical fasteners hold in place with small dabs of glue every 2.0 feet (0.61 m). Do not fasten through flashing.
4.	Seam adjacent piece with the selvage edge overlapping the top of the lower drainage mat piece.
5.	Install expanded metal lathe over the drainage mat according to the manufacturer's recommendations.
6.	Apply stucco according to manufacturer's recommendations. Provide a weep method for ventilation and drainage.
7.	Trim drainage mat around all penetrations, windows, and doors so that the material is flush to the flashing.
E.	Installation for Natural Stone:
1.	Install building paper or house wrap and flashing to manufacturer's recommendations.
2.	Install only as much drainage mat as will be covered by the stone each day. Wall ties can be installed through the drainage mat material.
3.	Place drainage mat horizontally against exterior wall fabric side out, entangled core to the building interior. Starting at the bottom of the wall, position the first piece of drainage mat where the bottom edge of the stone will meet the drip edge.
4.	Mechanically fasten with a staple hammer, large head nail or washer and screw one fastener for each square foot (0.1 sq. m). When installing over concrete or block back-up walls that do not accept mechanical fasteners hold in place with small dabs of glue every 2.0 feet (0.61 m). Do not fasten through flashing.
5.	Seam adjacent piece with the selvage edge overlapping the top of the lower drainage mat piece.
6.	Cut additional (W x L): 2 x 12 inch (50.80 mm x 304.80 mm) pieces of drainage mat and place strips every 2.0 feet (0.61 m) on center at the base of the wall extending outside of the wall as a weep vent. Place the strips fabric side UP.
7.	Install stone.
8.	When wall is complete, cut vent strips back flush with wall.
F.	Installation for Brick:
1.	Install building paper or house wrap and flashing to manufacturer's recommendations.
2.	Install only as much drainage mat as will be covered by the brick each day. Wall ties can be installed through the drainage mat material.
3.	Place drainage mat horizontally against exterior wall fabric side out, entangled core to the building interior. Starting at the bottom of the wall, position the first piece of drainage mat where the bottom edge of the brick will meet the drip edge.
4.	Mechanically fasten with a staple hammer, large head nail or washer and screw one fastener for each square foot (0.1 sq. m). When installing over concrete or block back-up walls that do not accept mechanical fasteners hold in place with small dabs of glue every 2.0 feet (0.61 m). Do not fasten through flashing.
5.	Seam adjacent piece with the selvage edge overlapping the top of the lower drainage mat piece.
6.	Install brick according to Brick Institute of America or manufacturer recommendation leaving an open head joint every 2.0 feet (0.61 m).
7.	Provide vents to provide open head joints during construction.
G.	Installation for Siding:
1.	Install building paper or house wrap and flashing to manufacturers' recommendations.
2.	Place drainage mat horizontally against exterior wall, fabric side out, entangled core to the building interior. Start at the bottom of the wall and work up.
3.	Mechanically fasten with a staple hammer, large head nail or washer and screw one fastener for each square foot (0.1 sq. m). When installing over concrete or block back-up walls that do not accept mechanical fasteners hold in place with small dabs of glue every 2.0 feet (0.61 m). Do not fasten through flashing.
4.	Seam adjacent piece with the selvage edge overlapping the top of the lower drainage mat piece. Shingle so that selvage edge is installed toward the bottom of the wall.
5.	Install siding, shingle or fiber-cement siding according to manufacturer's recommendations. When choosing a fastener, allow for thickness of drainage mat. Pneumatic nail guns can be used if nails meet manufacturers' recommendations and air pressure, and depth gauge is set to fasten nail snug with surface.
H.	Installation for Cedar Shingles.
1.	Install plywood deck on top of the roof rafters.
2.	Install roofing felt over the top of the entire plywood roof deck. Overlap the roofing felt 4 inches (101.60 mm) at joining pieces. Smooth out roofing felt and secure every 12 inches (304.80 mm).
3.	Install the CDR Vent with dimples down, by nailing, tacking, or stapling approximately every 3 sq ft (0.9 sq m). Each course should butt up against the course that was previously installed. Do not overlap.
4.	Install cedar shingles according to the manufacturer's recommendations. Install towards the ridge to prevent from walking on the CDR Vent. Make sure to incorporate the thickness of the CDR Vent with regards to the nail length for securing the shingle.
3.4	FURRING STRIP INSTALLATION.
A.	Install in accordance with manufacturer's instructions.
B.	Inspection of Wall Conditions and Weather Barrier/Building Wrap: Ensure that the wall is free from structural defects, that any membranes or flashing are properly installed, and that the final system will have a path for moisture to escape from the wall.
C.	Installation for Siding including fiber cement and wood siding:
1.	Install building paper or house wrap and flashing according to manufacturer's recommendations.
2.	Installations over 1/2 inch (12.71 mm) OSB or plywood intended for wood or cement cladding, place Easy-Fur over building paper or house wrap at 16 inches (406.40 mm) on center and align with the wall studs. Secure Easy-Fur in place with 1 inch (25.40 mm) crown staples, 1-1/4 inches (6.35 mm) long OR 3/4 inch (19.05 mm) long at 16 inches (406.40 mm) on center or other approved fasteners capable of penetrating the studs by 3/8 inch (9.53 mm). Start at the top of the wall and work down.
3.	Installations over 1 inch (25.40 mm) insulation and 1/2 inch (12.71 mm) OSB or plywood intended for wood or cement cladding, place Easy-Fur over building paper or house wrap at 16 inches (406.40 mm) on center and align with the wall studs. Secure Easy-Fur in place with 6d nails with 1/2 inch (12.71 mm) cap at 16 inches (406.40 mm) on center. Start at the top of the wall and work down.
D.	Windows and Trim.
1.	Secure additional Easy-Fur behind corner trim, and vertical window trim. Attach Easy-Fur 1 inch (25.40 mm) away from window frame for air and water channel behind trim.
2.	Place Easy-Fur along both the top and bottom length of the window. Easy-Fur will act as a screen to provide venting and deter possible insects or wind driven debris.
3.	Trim windows and doors as specified by manufacturer.
E.	Base of Wall.
1.	Run Easy-Fur horizontally at the base of wall. Easy-Fur will act as a screen to provide venting and deter possible insects or wind driven debris.
2.	Snap a line 4 inches (101.60 mm) above the bottom edge of the siding.
3.	Secure length of Easy-Fur to base of wall running horizontally, along the top of the line.
4.	When applying lap siding, place a second layer of Easy-Fur over the first. This second layer is a furring layer to give the siding proper slope for the bottom course. Siding should overlap the entire base assembly by 1/2 inch (12.71 mm).
F.	Top of Wall.
1.	Run Easy-Fur horizontally at the top of wall. Easy-Fur will act as a screen to provide venting and deter possible insects or wind driven debris.
3.5	FIELD QUALITY CONTROL.
A.	Field Inspection: Coordinate field inspection in accordance with appropriate sections in Division 01.
B.	Manufacturer's Services: Coordinate manufacturer's services in accordance with appropriate sections in Division 01.
3.6	CLEANING AND PROTECTION.
A.	Clean products in accordance with the manufacturer's recommendations.
B.	Touch-up, repair or replace damaged products before Substantial Completion.

END OF SECTION