MEL-ROL XLT - Self-Adhering Waterproofing Membrane
(800) 342-5976
Rolled, Self-Adhering, Extra-Low Temperature Waterproofing Membrane DESCRIPTION A handy overlap guideline is printed 2.5” (63.5 mm) in from the material edge on each side to assure proper overlap coverage and to assist in maintaining a straight application. Special, exposed polymeric membrane strips are provided on both sides for positive membrane-to-membrane adhesion in the overlap area. The membrane strips are protected by a pull-off release strip. All components of the MEL-ROL waterproofing system work together to provide a cost-effective, positive waterproofing system that’s quick and easy to apply. W. R. MEADOWS accessory products included in the MEL-ROL waterproofing system are: MEL-ROL LIQUID MEMBRANE, MEL-PRIME™ adhesive, MEL-PRIME W/B, POINTING MASTIC, DETAIL STRIP, CATALYTIC BONDING ASPHALT, TERMINATION BAR, PROTECTION COURSE, and MEL-DRAIN™ drainage board. USES Installation of PROTECTION COURSE from W. R. MEADOWS is recommended before backfilling. It can also be used with drainage boards when specified. FEATURES/BENEFITS
38.5” (.98 m) wide x 60’ (18.29 m) long; one roll per carton. COVERAGE STORAGE AND HANDLING SPECIFICATIONS MEL-ROL XLT COMBINES POSITIVE WATERPROOFING PROTECTION WITH EASE OF HANDLING EXCLUSIVE FEATURESA handy overlap guideline is printed 2.5” (63.5 mm) in from the material edge on each side, assuring proper overlap coverage and assisting in maintaining a straight application. The polymeric waterproofing membrane is protected by a special, easy-to-remove release paper. The exposed membrane strips on the material edges are protected by a pull-off release strip. Exposed polymeric membrane strips are provided on both sides of MEL-ROL XLT for positive membrane-to-membrane adhesion in the overlap area.
MEL-ROL XLT IS QUICK AND EASY TO APPLY Application Temperature … Apply in dry, fair weather when the air and surface temperatures are above 0° F (-18° C). Do not apply to frost covered concrete. Surface Conditioning … Apply MEL-PRIME adhesive or MEL-PRIME W/B to surfaces that will be covered within one working day. If left exposed overnight, additional adhesive must be applied. Follow all instructions and precautions on containers. REMOVE release paper from MEL-ROL from the top edge of the roll and firmly press exposed area to the wall. Remove the release paper from the rolls in a downward direction, pressing MEL-ROL into place on the wall. Footing Details ... Use DETAIL STRIP for impaction sheet coverage. First, fold strips lengthwise and then cut at the fold. Material is then ready to install as 4.5” (114.3 mm) strips on either side of the rebar. Any excess can be turned down on the face of the footing. Next, fill the voids around rebars in the keyway with CATALYTIC BONDING ASPHALT. Pour the walls. Install DETAIL STRIP horizontally along the wall where it meets the footing, placing half the material up the wall and the other half onto the footing. Extend the material 4.5” (114.3 mm) beyond outside corners. Slit extended portion of DETAIL STRIP lengthwise. Place the horizontal flap out onto the footing and bend the vertical flap around the wall. (See Diagram A.) Repeat this procedure in the opposite direction as shown in Diagram B.
Horizontal Application ... Position the MEL-ROL XLT membrane from low to high points, so all laps will shed water. Stagger end laps and overlap all seams at least 2.5” (63.5 mm). Apply a double-thickness of the MEL-ROL XLT membrane over construction, control and expansion joints, and over cracks greater than 1/16” (1.59 mm) wide. Vertical Wall Application ... Masonry walls must be parge-coated with a cementitious material before surface conditioning and applying MEL-ROL XLT. Apply vertically in lengths approximately 8’ (2.44 m) long over the top of the horizontal DETAIL STRIP at the footing. Overlap seams at least 2.5” (63.5 mm). Tightly butt edges of membrane and apply POINTING MASTIC in corner applications. (See Diagram C.)
To the top terminations, apply POINTING MASTIC at least 1/8” (3.18 mm) thick and 1” (25.4 mm) wide. As an option, TERMINATION BAR may be used to mechanically fasten the membrane. Masonry walls must be parge-coated with a cementitious material before applying MEL-ROL XLT. Hand-Rub and Roll Press ... Once positioned, immediately hand-rub MEL-ROL XLT membrane firmly to the surface and then pressure roll the complete surface to assure positive adhesion. Inside Corners ... Before MEL-ROL XLT is applied, place a vertical DETAIL STRIP on inside corners extending the material 4.5” (114.3 mm) beyond each side of the corner. (See Diagram D.) Terminate at the footing and finish the corner with POINTING MASTIC.
Outside Corners ... Bend DETAIL STRIP vertically over the outside corner and extend 4.5” (114.3 mm) beyond each side of the corner. Terminate the material at the footing. Finish the corner with POINTING MASTIC. (See Diagram C.) Drains and Protrusions ... All protrusions should be sealed with two layers of membrane applied at least 6” (152.4 mm) in all directions. Seal all terminations with POINTING MASTIC. Around drains, apply two layers of MEL-ROL XLT membrane and put a bead of POINTING MASTIC between the membrane and clamping rings and at all terminations, drains, and protrusions. Inspect and Repair … A thorough inspection should be made before covering and all necessary repairs made immediately. Tears and inadequate overlaps should be covered with MEL-ROL XLT membrane ... slit fish mouths and patch. Seal edges of all patches with POINTING MASTIC. Where applicable, horizontal applications can be flood-tested for 24 hours. All leaks should be marked and repaired when membrane dries. Protect the Membrane ... on all vertical and horizontal installations with the immediate application of PROTECTION COURSE, if no drainage system is used, or MEL-DRAIN. To secure PROTECTION COURSE, use POINTING MASTIC as an adhesive, and/or physically attach at the top edge using TERMINATION BAR. Backfilling should be done immediately using care and caution to avoid damaging the waterproofing application. PRECAUTIONS ACCESSORIES COVERAGE: 250-350 sq. ft./gal. (6.14 - 8.59 sq. m/L) MEL-ROL LIQUID MEMBRANE … A two-component material used as a flashing, to form fillets at corners and at protrusions. May be used as a substitute for POINTING MASTIC. COVERAGE: As a fillet, approximately 135 lineal feet per gallon (10.87 m per liter) POINTING MASTIC … Used as an adhesive and for sealing top edge terminations on DETAIL STRIP and membrane, and to adhere PROTECTION COURSE. COVERAGE: 1/8” x 1” x 200’/gal. (3.18 mm x 25.4 mm x 16.10 mL). CATALYTIC BONDING ASPHALT … Easy-to-apply, one-component material for sealing around rebar. COVERAGE: 5 gal./1000 sq. ft./gal. (4.9 sq. m/L) DETAIL STRIP … Convenient, easy-to-use DETAIL STRIP provides an economical and effective method for sealing vertical and horizontal butt joints, i.e. inside or outside corners and where walls and footings meet. PACKAGING: 9” x 50’ (.23 x 15.24 m) roll, 4 rolls per carton. PROTECTION COURSE … Use for vertical and horizontal applications. Adhere with POINTING MASTIC or use mechanical fasteners. PACKAGING: 4’ by 8’ (1.22 by 2.44 m) panels. MEL-DRAIN … A dimple-raised, molded polystyrene fabric designed to provide high flow capacity to reduce hydrostatic pressure build-up around waterproofing and vaporproofing membranes. Choice of drain types available for vertical, horizontal, and site applications. TERMINATION BAR ... A high strength, pre-formed, multi-purpose plastic strip designed to support vertical membrane systems and PROTECTION COURSE at their termination point. PACKAGING: 10' (Holes every 6" o/c, 2" from either end), 25 pieces per carton. MAINTAIN ENERGY EFFICIENCY
This material last updated April 2011.
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