Parcel Orders over $300 Ship Free.
WR Meadows MEL-ROL LOW TEMP Self-Adhering Waterproofing Membrane 38.5 Inch x 62.5 ft Roll
WR Meadows MEL-ROL LOW TEMP is a self-adhering roll waterproofing membrane with a 56 mil polymeric layer for adhesion at lower temperatures, supplied in a 38.5 Inch x 62.5 ft roll (200.5 sq ft). It is intended for foundations, below-grade walls and floors, and between-slab work when air and surface temperatures are between 20 F and 60 F.
- Goes on at air and surface temperatures of 20-60 F (-7 to 16 C)
- Hydrostatic resistance equivalent to 230.9 ft of water (ASTM D5385)
- Exposed membrane strips on both edges for membrane-to-membrane laps
$274.33
Drop Shipped
WR Meadows MEL-ROL LOW TEMP Self-Adhering Waterproofing Membrane 38.5 Inch x 62.5 ft Roll
WR Meadows MEL-ROL LOW TEMP (part of the mel rol family) is a flexible, roll-type waterproofing membrane for cold-weather work. It has a nominally 56 mil polymeric membrane, for adhesion at lower temperatures, laminated to a 4 mil cross-laminated polyethylene carrier film. An overlap guideline is printed 2.5 Inch in from each edge, and exposed membrane strips on both sides give membrane-to-membrane adhesion in the lap. It is intended for foundations, vertical walls, below-grade floors and balconies, for between-the-slab waterproofing on plaza decks, parking decks and structural slabs, and for tunnel projects, in cold temperature conditions. It goes on concrete, masonry, wood, insulated wall systems and metal over MEL-PRIME adhesive, when air and surface temperatures are between 20 F (-7 C) and 60 F (16 C). For moderate temperatures, WR Meadows makes the standard MEL-ROL grade.
Key Features
- Polymeric layer for adhesion at lower temperatures
- Goes on at air and surface temperatures of 20-60 F (-7 to 16 C)
- Printed overlap guideline 2.5 Inch from each edge
- Exposed membrane strips on both sides for membrane-to-membrane laps
- Passes flexibility at -20 F (-29 C) (ASTM D1970)
Applications
- Cold-weather foundation and below-grade wall waterproofing
- Between-the-slab waterproofing on plaza decks, parking decks and structural slabs
- Balconies, mechanical and electronic rooms, laboratories, kitchens and bathrooms
- Tunnel wrap
Technical Specifications
| Property | Value |
|---|---|
| Type | Self-adhering, roll-type waterproofing membrane for cold temperature application |
| Construction | Nominally 56 mil black polymeric membrane on a 4 mil white cross-laminated polyethylene carrier film |
| Roll size | 38.5 Inch (977.9 mm) wide x 62.5 ft (19.1 m) long, one roll per carton |
| Coverage per roll | 200.5 sq ft (18.6 m²) gross; 187.5 sq ft (17.4 m²) net with a 2.5 Inch overlap |
| Tensile strength (ASTM D412, Die C) | Carrier film 5900 psi (40.71 MPa) min.; membrane 460 psi (3230 kPa) |
| Elongation (ASTM D412) | 971.3% |
| Low temperature crack bridging (ASTM C1305) | 10 cycles at -25 F (-32 C), pass |
| Peel adhesion (ASTM D903) | 11.8 lb/in (2068 N/m) |
| Lap adhesion (ASTM D1876) | 8.62 lbf/in (1508.5 N/m) |
| Water vapor permeability (ASTM E96, B) | 0.036 perms |
| Water absorption (ASTM D570) | 0.1%, 72 h max. |
| Hydrostatic resistance (ASTM D5385) | Equivalent to 230.9 ft (70.38 m) of water |
| Puncture resistance (ASTM E154) | 48.24 lbf (214.6 N) |
| Flexibility at -20 F (-29 C) (ASTM D1970) | Pass |
| Application temperature | Air and surface 20-60 F (-7 to 16 C); not on frozen concrete |
| Storage | Cartons on pallets, covered if outside; away from sparks and flames; not above 90 F (32 C) for extended periods |
| Specifications | A.R.E.M.A. Chapter 29, Waterproofing |
| Pack | 38.5 Inch x 62.5 ft roll |
| Part number | 5110362 |
Product documents: WR Meadows MEL-ROL LOW TEMP Data Sheet (PDF)
Frequently Asked Questions
How much area does one roll of WR Meadows MEL-ROL LOW TEMP cover?
Each 38.5 Inch x 62.5 ft roll gives 200.5 sq ft (18.6 m²) gross, or 187.5 sq ft (17.4 m²) net with a 2.5 Inch overlap.
At what temperatures is MEL-ROL LOW TEMP used?
Apply it in dry, fair weather when air and surface temperatures are between 20 F (-7 C) and 60 F (16 C), and not on frozen concrete. The standard MEL-ROL grade is for moderate temperatures, and WR Meadows also makes MEL-ROL XLT for extra-low temperatures.
What adhesive goes under it?
Apply MEL-PRIME adhesive to surfaces that will be covered within one working day; if left exposed overnight, more adhesive must be applied. The 714-C data sheet lists the solvent-based MEL-PRIME as the accessory adhesive for this grade. In certain conditions the overlaps may also need priming.
How should the surface be prepared?
Concrete should be cured at least 72 hours and be clean, dry, smooth and free of voids. Repair spalled areas, fill voids and remove sharp protrusions. Masonry walls may need a cementitious parge coat, which must dry before priming.
How are laps and details handled?
Run the roll from low to high so laps shed water, stagger end laps and overlap seams at least 2.5 Inch. Use a double thickness over construction, control and expansion joints and over cracks wider than 1/16 Inch. Seal protrusions with two layers at least 6 Inch in all directions, and finish top terminations with POINTING MASTIC at least 1/8 Inch thick and 1 Inch wide. At the footing keyway, fill the voids around rebar with HYDRALASTIC 836.
What protection and precautions apply?
Cover it right away with PROTECTION COURSE if no drainage system is used, or with MEL-DRAIN, then backfill with care. Keep tars, solvents, pitches, polysulfide polymers and PVC materials away from the membrane. It does not remove the need to relieve hydrostatic head: place a complete drain tile system around the footing and under slabs as required. Store cartons away from sparks and flames.
Please complete your information below to login.