J-DRain 700 consists of a high flow dimpled drainage core formed from a light duty impermeable polymeric sheet cuspated under heat and pressure, then bonded to a layer of woven filter fabric. The filter fabric retains soil and sand particles or freshly placed concrete or grout, allowing filtered water to pass into the drainage core.
J-DRain 720 includes the addition of a protection sheet bonded to the back side of the core for soft membrane waterproofing systems. J-DRain 720 is compatible with waterproofing systems without the use of a protection board.
J-DRain 740 has the same core as 700 but bonded to a layer of 4 oz/sy non-woven filter fabric.
J-DRain 780 has the same core as 700 but bonded to a layer of 8 oz/sy non-woven filter fabric.
| PROPERTY |
TEST METHOD |
ENGLISH |
METRIC |
| Compressive Strength - Core |
ASTM D-1621 |
21,000 psf |
1,005 kNm2 |
| Thickness - Core |
ASTM D-1777 |
.40 in |
1.016 cm |
| Flow - Core |
ASTM D-4716 |
21 g/min/ft width |
261 l/min/m width |
| Flow - Fabric |
ASTM D-4491 |
145 g/min/ft2 (700/720) |
5,907 l/min/m2 |
| Flow - Fabric |
ASTM D-4491 |
140 g/min/ft2 (740) |
5,704 l/min/m2 |
| Flow - Fabric |
ASTM D-4491 |
95 g/min/ft2 (780) |
3,866 l/min/m2 |
| Puncture - Fabric |
ASTM D-4833 |
100 lbs (700/720) |
.44 kN |
| Puncture - Fabric |
ASTM D-4833 |
65 lbs (740) |
.30 kN |
| Puncture - Fabric |
ASTM D-4833 |
130 lbs (780) |
.58 kN |
| Apparent Opening Size - Fabric |
ASTM D-4751 |
40 US Sieve (700/720) |
.42 mm |
| Apparent Opening Size - Fabric |
ASTM D-4751 |
70 US Sieve (740) |
.21 mm |
| Apparent Opening Size - Fabric |
ASTM D-4751 |
80 US Sieve (780) |
.18 mm |
| Grab Tensile - Fabric |
ASTM D-4632 |
365 lbs |
1.62 kN |
| Grab Tensile - Fabric |
ASTM D-4632 |
100 lbs |
.45 kN |
| Grab Tensile - Fabric |
ASTM D-4632 |
205 lbs |
.90 kN |
| ROLL SIZE |
AREA |
WEIGHT |
| 4' x 50' |
200 SF |
50 lbs |
| 8.5' x 50' |
425 SF |
105 lbs |
Spec Interpretation