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Sika® Evercryl® Emergency Roof Repair

Instant waterproofing repair for all roofs, even in the wet

Sika® Evercryl® Emergency Roof Repair is a resin based, fibre re-enforced roof repair compound which is effective on all common roofing surfaces and types, giving an instant roof repair even in the wet and on wet surfaces. May also be applied in frosty conditions down to –5 °C.  The product is instantly waterproof when applied, so there is no fear of wash off, so emergency leaks can be tackled immediately as there is no need to wait for the rain to stop.  Sika® Evercryl® Emergency Roof Repair is cartridge applied and dries to a flexible membrane, which resists algae and fungal growth. The high level of fibre re-enforcement will bridge small cracks and holes up to 5 mm and requires only one application to give instant and total water protection, even in areas subject to ponding.  Sika® Evercryl® Emergency Roof Repair requires no primer on sound non-porous surfaces.  

  • May be applied in damp and wet conditions. Formulated from lightfast acrylic polymers to withstand sunlight for longer periods than traditional bitumen.
  • Fibre re-enforced to bridge small cracks.
  • Primerless adhesion to most bituminous and non-porous surfaces.
  • Elongation - 350 % at break.
  • Curing method is via solvent loss and physical drying.
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Product Data Sheet Show all documents

Usage

  • General sealing, maintenance, repair and waterproofing of most common roofs in wet or dry conditions – for use on concrete, fibre/cement, roofing felt, mastic asphalt, existing bituminous roof coatings, rigid uPVC, corrugated iron, metals, slates, brickwork, tiles, lead, copper and zinc.
  • Waterproofing guttering (plastic and metal), downpipes, gully’s, flashings, upstands, vents and leadwork.

Advantages

  • May be applied in damp and wet conditions. Formulated from lightfast acrylic polymers to withstand sunlight for longer periods than traditional bitumen.
  • Fibre re-enforced to bridge small cracks.
  • Primerless adhesion to most bituminous and non-porous surfaces.
  • Elongation - 350 % at break.
  • Curing method is via solvent loss and physical drying.

Packaging

310 ml cartridge.

Colour

Grey & Translucent.

Product Details

Product Information

Chemical Base

Modified acrylic re-enforced with Dralon fibres in solvent blend.

Shelf Life

24 months from date of manufacture in tightly sealed undamaged containers. When stored between +5 and +25 °C.

Storage Conditions

Store in cool dry conditions away from all sources of ignition. Do not exceed 60 °C. Will withstand frost.

Density

~0.94 g/cm³.

Viscosity

Gunable paste.
Technical Information

Service Temperature

-25 to +100 °C.

Application

Application Information

Ambient Air Temperature

-5 to +35 °C.

Curing Time

24-48 hours, product is instantly rain and frostproof.
Consumption

Yield

1-1.5 linear meters per cartridge depending on substrate.
Application steps

SUBSTRATE PREPARATION

No roof-coating product can be expected to repair an existing roof that is not structurally sound and stable.

Before using a surface coating the roof structure should be inspected and if necessary, put in order. All cracked, broken, slipped or missing slates, tiles, sheets or other forms of covering should be replaced or refixed and cracks in felt or asphalt filled. (Safety Recommendation: do not coat roof lights, windows, glass or translucent sheets. These will constitute a hidden hazard if disguised.)

Preparation of the surface is of great importance and will influence the degree of adhesion and life of the renovation. All roof surfaces to be coated should be sound, stable and clean, i.e. free from loose debris, dirt, dust and grease.

 

All traces of algae and fungi growth should be removed using a stiff-bristled brush. Where algae and fungi have been present, remove them completely and treat the surface with Sika® Mouldbuster to kill any remaining spores, thereby discouraging the return of the growth.

Fix any holes or loose felt/slates/tiles etc. Fill holes/imperfections with Black Jack® 903 Bitumen Trowel Mastic.  Stick down loose felt etc with Black Jack® 904 Roof Felt Adhesive.  Blisters in roofing felt must be cut, dried, re-bonded and sealed.

New metal surfaces must be degreased with a suitable solvent. Remove all rust or treat rusty surfaces with a rust inhibitive primer (eg zinc phosphate based).

All non-bituminous, porous or friable surfaces must be primed with Black Jack® 902 Bitumen and Flashing primer allowing the primer to dry thoroughly before use.

APPLICATION

Wear gloves and suitable face/eye protection. Flammable product - eliminate all sources of ignition. Cut the tip of the cartridge, taking care not to damage the thread apply special nozzle. In extreme cases a second application may be made 2-3 days after initial application.

CLEANING OF TOOLS

Clean equipment with white spirit.

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