Coverage table for Drylal™, Daclar™ and Vezlar™.
Before a spray application of the Drylar™ membrane ensure the concrete surface is dry and free of any dirt or loose materials. Voids and joints larger with a width of 1/8" or more should be sealed using a brush coat of Voxlar™ over geo textile. All penetrations, right angles and corners need to be coated with Voxlar™ prior to spraying with Drylar™.
| Required thickness (cured membrane) |
Coverage | |||
|---|---|---|---|---|
| Mils | Mm | ft2/gal | m2/gal | m2/litre |
| 40 | 1,02 | 30 | 2,79 | 0,74 |
| 60 | 1,53 | 20 | 1,86 | 0,49 |
| 80 | 2,04 | 15 | 1,39 | 0,37 |
| 100 | 2,55 | 12 | 1,11 | 0,29 |
| 120 | 3,06 | 10 | 0,92 | 0,24 |
| 140 | 3,55 | 8,5 | 0,78 | 0,21 |
| 160 | 4,08 | 7,5 | 0,69 | 0,18 |
| 180 | 4,59 | 6,6 | 0,61 | 0,16 |
| 200 | 5,10 | 6,0 | 0,55 | 0,15 |
Roof surfaces should be clean and dry. If ponding water is found, remove water and allow the area to dry 48 hours prior to application of Daclar™. Surfaces should be free of any loose materials, all cracks should be sealed with Zavlar™ over geo textile prior to a spray application of Daclar™.
For repair and restoration of BUR roofing ensure that all roofing granuals have been removed and the surface power swept. Check and repair flashings, curbs, parapets, drains, roof edges and roof penetrations prior to applying Daclar™. Do not apply Daclar™ over existing EPDM or coal tar surfaced roofs. On roof waterproof restoration projects it is recommended that a thermal scan be conducted to identify hidden moisture that can degrade the new membrane.
On new roof surfaces ensure that all construction materials and scrap have been removed and the surface is clean. Seal all joints with a coating of Zavlar™ over geo textile, prior to the spray applied Daclar™ membrane.
For best results always keep the nozzle tips at right angles to the surface being sprayed. If there is a breeze, ensure that the part ‘B’ or accelerator side of the spray gun is facing the wind.
On vertical surfaces, start at the bottom and work up.