PRODUCTS

Koval Building Supplies carries a variety of drainage mats, roofing underlayment products and materials for the application of stucco. 

Rainscreen Drainage Mat

Rainscreen drainage mats are used to create a weather resistive barrier and provide additional space for drainage. They also contribute to air circulation and ventilation between exterior finish materials and wall sheathing. A combination of water drainage and air circulation reduces the damaging effects of water penetration into the walls. Rainscreen mats are designed for use with architectural (cultured) and natural stone, traditional stucco and E.I.F.S., fiber-cement and wood based sidings, as well as masonry, metal and other wall cladding materials.

EnkaRain Drain 3511

EnkaRain Drain 3511 is an exterior wall drain product designed for use behind traditional stucco, EIFS, manufactured stone, fiber cement, and metal panel applications. This rainscreen drain provides a drain path and ventilation for incidental moisture between exterior wall finish materials and weather barrier sheathing. 3511 has a unique waffle geometry that combines the benefit of compressive strength according to traditional testing measurements with the spring-like structure of other Enkadrain products. EnkaRain Drain meets Canadian Building Code requirement of 10 mm.

 

Each roll is 39'' x 100' / 11.43 mm thick / 324 s.f. coverage

Applications
• Acrylic (EIFS) and traditional stucco 
• Architectural and natural stone
• Metal panels
• Fiber-cement and wood-based siding

Features and Benefits
• Excellent durability
• Continiously ventilates, removing incidental moisture from wind driven pressure differential
• Conforms to irregular surfaces and corners with complete and effective coverage
• Provides 100% coverage of wall area
• Filter fabric assures drain path remains completely clear of stucco or mortar
• Waffle design creates open flow path even at excessive pressures
• Dimensionally stable in hot weather, not britle in cold

EnkaRain Drain 3511 Technical Data Sheet

Intertek Evaluation Report on EnkaRain Drain 3511

GREEN & METAL ROOF UNDERLAYMENT

BONDAR is the fastest growing leader in green roofs technology. The family of products used for drainage and roof reinforcement in multi-layer green roof configuration are Enkadrain 3811R, Enkadrain 3611R & Enkamat 7010. 

Enkamat 7008/7010 & Enkamat 7020 is a nylon matrix used for drainage and ventilation in metal, cedar, protected membrane, and ballasted roofing applications. This product is used when a weather barrier membrane has already been placed on the sheathing and a drainage and ventilation layer is needed.


 

EnkaDrain® 3811R

Bonar Building Products — Drainage

Enkadrain 3811R is one of a new generation of environmentally conscious Enkadrain products. This drainage composite consists of a postindustrial recycled polypropylene drainage core of fused, entangled filaments and a geocomposite fabric bonded to each side. The entangled filaments are molded into a square waffle pattern that maintains the flexible design of other Enkadrain products. This product, because it exceeds 40% post-industrial recycled content, can help contribute up to 2 LEED points when used in conjunction with other recycled content products. Enkadrain 3811R can contribute towards additional LEED points when used with a green roof by reducing stormwater runoff, heat islands, and energy consumption. The second fabric eliminates the need for protection board and stops penetration and migration of bitumen membrane.

Recommended Applications
• Foundation walls
• Green roofs
• Plaza decks
• Retaining walls
• Beneath slabs
• Exterior Insulation (E.I.F.S)
• Masonry, cultured and natural stone
• Earth sheltered homes
• Underground parking
• Exterior planters

Features and Benefits
• Excellent durability
• Protects waterproofing during and after backfill
• Conforms to irregular surfaces and corners
• Waffle design creates open flow path - even during backfill
• Continuous flow even under high loads
• Long rolls reduce installation costs by reducing butt seams and eliminating interlocking
• Recycled content polymer contributes towards LEED points
• Increased flow rates over same thickness nylon and HDPE drains
• 3" fabric overlap flap on both sides

EnkaDrain® 3611R

Bonar Building Products — Drainage

Enkadrain 3611R is one of a new generation of environmentally conscious Enkadrain products. This drainage composite consists of a post-industrial recycled polypropylene drainage core of fused, entangled filaments and a geocomposite fabric bonded to one side. The entangled filaments are molded into a square waffle pattern that maintains the flexible design of other Enkadrain products. This product, because it has 40% postindustrial recycled content, can help contribute up to 2 LEED points when used in conjunction with other recycled content products. Enkadrain 3611R can contribute towards additional LEED points when used with a green roof by reducing stormwater runoff, heat islands and energy consumption.

Recommended Applications
• Foundation walls
• Green roofs
• Plaza decks
• Retaining walls
• Beneath slabs
• Exterior Insulation (E.I.F.S)
• Masonry, cultured and natural stone
• Earth sheltered homes
• Underground parking
• Exterior planters

Features and Benefits
• Excellent durability
• Protects waterproofing during and after backfill
• Conforms to irregular surfaces and corners
• Waffle design creates open flow path - even during backfill
• Continuous flow even under high loads
• Long rolls reduce installation costs by reducing butt seams and eliminating interlocking
• Recycled content polymer contributes towards LEED points
• Increased flow rates over same thickness nylon and HDPE drains
• 3" fabric overlap flap

Enkamat® 7010

Bonar Civil Products — TRM

Enkamat® 7010 is a 3-dimensional turf reinforcement mat (TRM) made of continuous monofilaments fused at their intersections. Ninety-five (95%) percent of the Enkamat is open and available for soil, mulch and root interaction, creating the most effective root reinforcement mat (R2M) available. Enkamat is manufactured from nylon to eliminate the buoyancy factor associated with submerged conditions and provides permanent TRM protection in vegetated channels as well as on slopes.

Recommended Applications
• Spacer between zinc and other metal roofs and the weather barrier underlayment/plywood substrate in sloped applications
• Thermal break between metal roofs & sheathing
• Spacer between ballast and loose laid, fully adhered or mechanically attached roofs

Features and Benefits
• Reduces energy use by creating a thermal break/barrier between metal roof & sheathing
• Reduces roof noise from rain or sleet by more than 21 dB
• Easy to install — simply roll out over weather barrier or roof membrane
• Provides continuous air or water flow
• Durable & flexible structure is easy to cut and can be placed horizontally or vertically
• Dimensionally stable in hot weather — not brittle in cold

Enkamat® 7020

Bonar Civil Products — TRM

Enkamat® 7020 is a 3-dimensional turf reinforcement mat (TRM) made of continuous monofilaments fused at their intersections. Ninety-five (95%) percent of the Enkamat is open and available for soil, mulch and root interaction, creating the most effective root reinforcement mat (R2M) available. Enkamat is manufactured from nylon to eliminate the buoyancy factor associated with submerged conditions and provides permanent TRM protection in vegetated channels, as well as on slopes.

Recommended Applications
• Permanent erosion control for vegetated channels with expected shear stresses ≤ 17 psf.
• Permanent erosion control for moderate to steep slopes (≤0.5H:1V).
• Support and enhance performance of ecosystem plants
• Spacer between ballast and loose laid, fully adhered or mechanically attached roofs 
• Excellent substrate for hydraulically applied mulches for application where calculated hydraulic Forces exceed the threshold of the mulch itself and/or unreinforced vegetation.

Features and Benefits
• Excellent durability
• Easy to install - simply roll out over weather barrier or roof membrane
• Provides continuous air or water flow even under high loads
• Flexible structure is easy to cut and can be placed horizontally or vertically
• Dimensionally stable in hot weather - not brittle in cold

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