Cromar Allweather Roof Coat
- Suitable For: added waterproofing, strength and stability.
- Area of use: EXT
- Application Method: brush
- Volume: 5L 25L
- Container Type: tin
- Type: waterproofer
- Brand: Cromar
- Manufactuer: Cromar
- Box Size: Single Box
Data Sheets
Cromar Allweather Roof Coat is a solvent-based, cold-applied bituminous compound fortified with organic fibers for added strength and stability. Here are four key points about this versatile product:
- Rapid Waterproofing: This general-purpose roof coating quickly resists water infiltration almost immediately upon application, making it particularly suitable for winter use.
- Versatile Application: Allweather Roofing Compound is designed to reseal, waterproof, and repair various roof coverings, including asphalt, built-up felt, concrete roof decks, asbestos-cement sheeting, metal sheeting (such as iron, steel, zinc, and lead), as well as slates and tiles.
- Reinforcement Options: It can be used with rot-proof hessian reinforcement scrim or bituminised glass fibre scrim to enhance durability and performance.
- Additional Functionality: This compound may also serve as a vapor barrier, providing added utility for various roofing projects. However, it’s not suitable for use in silage pits.
For more information on Cromar, you can visit their website here.
Cromar Allweather Roof Coat is a cold-applied bituminous compound fortified with organic fibers for added strength and stability.
APPLICATION
- Pre-application Preparation:
- Prior to application, ensure thorough stirring of the product.
- Assess the structural integrity of the roof; repairs should be conducted before coating application.
- Replace or refix cracked, broken, slipped, or missing slate, tiles, sheets, or other forms of covering.
- Prepare surfaces meticulously; they must be free from oil, dirt, dust, loose debris, algae, and fungus growth.
- Specific Surface Preparation and Application Guidelines:
- Asphalt Roofs:
- Address blisters by heating them with a blow lamp until soft and then smoothing them out.
- Crumbling or badly cracked asphalt should be replaced with a polyester-based underlay.
- Apply Allweather Roofing Compound in two coats, allowing the first coat to dry before applying the second.
- Built-up Felt Roofs:
- Remove loose chippings and carry out preparatory work as detailed.
- Minor marks and defects will be filled and covered effectively, while wider defects should be filled with Trowel Mastic before application.
- Address blisters by cleaning them with a stiff bristled brush and coating them with Allweather Roofing Compound.
- Reinforced Concrete and Lightweight Concrete:
- Conduct preparatory work accordingly, ensuring proper curing.
- Apply Universal Primer for new decks and top with Allweather Roofing Compound and a glass membrane.
- Asbestos-Cement Sheeting:
- Ensure the asbestos cement is dry before application; apply Bitumen Primer followed by two coats of Allweather Roofing Compound.
- Metal Surfaces:
- Remove signs of corrosion using a wire bristled brush and apply a rust inhibitive treatment.
- Apply Allweather Roofing Compound in two coats.
- Slate and Tiles:
- Examine for damaged or loose slates or tiles and re-fix firmly before applying Allweather Roofing Compound and a glass membrane.
- Asphalt Roofs:
- Scrim Treatment:
- Use Allweather Roofing Compound with a reinforcing membrane, preferably glass membrane, to bridge gaps, cracks, and fissures.
- Apply a first coat, immediately followed by application of the glass membrane into the wet compound film, ensuring complete contact.
- Final Surface:
- Apply a third and final coat of Allweather Roofing Compound, preferably with a solar reflective finish, and blind with stone chippings or clean sharp sand.
- Alternatively, apply Aluminium Paint for solar reflective coating after allowing the final Allweather coating to weather adequately.
- Vapour Barrier:
- Apply two coats of Allweather Roofing Compound to prevent condensation water vapor from damaging insulation.
- Ensure application on the ‘warm’ side, avoiding pinholes and imperfections before applying insulation.
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| Elementlength | |||||||
| up to 1,5 m |
up to 2,5 m |
up to 3,5 m |
up to 4,5 m |
up to 2,5 m |
up to 3,5 m |
up to 4,5 m |
|
| Type of window frame material |
Minimum witdth of joints for a butled mounting b in mm |
Minimum witdth of joints for a inner mounting b in mm |
|||||
| Hard PVC (white) | 10 | 15 | 20 | 25 | 10 | 10 | 15 |
| Hard PVC and PMMA (dark) (colour extruded) |
15 | 20 | 25 | 30 | 10 | 15 | 20 |
| Hard PUR integral foam | 10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Wood-aluminium-window | 10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Aluminium-plastic sandwich frame (bright) |
10 | 10 | 15 | 20 | 10 | 10 | 15 |
| Aluminium-plastic sandwich frame (dark) |
10 | 15 | 20 | 25 | 10 | 10 | 15 |
| Wooden window frame | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
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