Sika Waterproofing vs Dr Fixit is an ongoing debate when it comes to terrace, roof and bathroom waterproofing. The products from these two companies are not interchangeable, however, and which is best depends on the surface, the nature of the water exposure, and the demands of the use.
Although similar in nature, Sika CoolCoat and Dr. Fixit Roofseal Select differ in their product instructions and system specifications. You should compare individual products rather than whole companies.
Sika Waterproofing vs Dr Fixit: Comparison Table
| Comparative element | Sika | Dr. Fixit |
|---|---|---|
| Product range | Acrylic roof coatings, liquid membranes, etc. | Roof, terrace, and waterproofing products |
| Example roof coating | Sika CoolCoat | Dr. Fixit Roofseal Select |
| Example surface uses | Sika CoolCoat is suitable for flat and sloping roofs, terraces, etc., after appropriate preparation. | Roofseal Select is suitable for existing roof surfaces such as brick-bat coba, screed, and china mosaic. |
| System requirements | Varies depending on productβsee specification sheet. | The Roofseal Select datasheet specifies surface preparation, number of coats, and glass-fiber mesh reinforcement. |
| Best way to compare | Compare like-for-like products according to the surface and project. | Compare like-for-like products according to the surface and project. |
This brief comparison highlights the need to consider exactly what products are needed for a specific surface. One product may be ideal for one surface but unsuitable for another.
What Do the Examples Say About the Products?
Sika CoolCoat
Sika describes CoolCoat as βa single component, acrylic-based flexible micro-fiber reinforced waterproofing and heat reflecting coating,’ suitable for exposed roof slabs and terraces, including flat or sloping roofs, after surface preparation and repair.
This roof coating also has features that bridge cracks, resist weather, and reflect solar heat.
Dr. Fixit Roofseal Select
Dr. Fixit describes Roofseal Select as an βacrylate-silicon terrace coating.’ The technical data sheet for this product lists a number of existing surfaces that can be used, including cementitious screed, brick-bat, coba, and china mosaic. It also specifies a self-priming coat, three coats of undiluted Roofseal Select, and glass-fiber mesh reinforcement as part of the system.
The technical data sheet also states that the coated surface should be allowed to cure before ponding water tests can commence.
These two examples show why it is so important to specify products correctly. Even within one company, the system requirements, applicable surfaces, and product features can differ significantly.
Which Waterproofing Brand Is Better for a Terrace?
To determine which brand is best for a terrace, you need to know what surface you have. Is it plain concrete, screed, brick-bat coba, china mosaic, or tile? Check that the product you want is suitable for your surface and intended for exposed roof use.
Compare:
- Surface compatibility: check if the surface is suitable and if any primer is required
- Crack and joint treatment: find out how drains, wall/roof junctions, and cracks should be treated
- Reinforcement: check if any fabric or mesh is needed
- Coating: check quantities, coverage, and the number of coats required
- Foot traffic: make sure the surface can withstand the number of people walking on it
- Curing: allow enough time for curing before exposing it to water or testing it by ponding
Do not assume that a roof coating can be used on a terrace just because they are both horizontal surfaces. For example, according to the technical data sheet, Sikalastic-450 (I) can be used on roofs and concrete structures but is not suitable for continuous immersion. The same document shows that it has a built-up system, which may require more material than expected.
What About Heat Reflective Roof Coatings?
If you are looking for heat-reflective coatings, choose products that are specifically designed for this purpose. Based on the descriptions provided, Sika CoolCoat is a heat-reflective roof coating, while Dr. Fixit Roofseal Select has a reflective white membrane. The actual performance will depend on the product, its colour, and the nature of the roof construction. Always check the technical data sheet rather than relying on general information provided.
Compare the Full Cost, Not Just the Quantity or Price
When comparing the cost of different waterproofing products, you should look at more than just the price per litre or per pack. The total cost depends on the size of the surface to be protected, its condition, and the number of coats required, as well as any necessary repairs, primers, and reinforcement. Ask the applicator for a detailed quote, which should include:
- Surface preparation
- Crack, joint, and drain repairs
- Primer and reinforcement
- Quantity and number of coats
- Labour and curing time
- Warranty and maintenance
Ask if their quote includes a full waterproofing system or just the materials. Always remember that a lower price for materials can mean a much higher final bill due to extra labour.
How to Choose Between Sika and Dr Fixit?
Use this simple guide to help choose between Sika and Dr Fixit:
- Determine the source of water penetration. Water can get in anywhere β through cracks, drains, or faulty waterproofing membranes
- Identify the surface. Provide photos for reference to the manufacturer, supplier, or applicator
- Check the specification. Get copies of the technical data sheets for the products you are considering
- Obtain a quote based on the above. Ask for a breakdown of costs, including repairs, materials, labour, and curing time
- Get warranty and maintenance information in writing
If your roof or terrace has water retention or poor drainage, have it inspected by a professional before waterproofing. Waterproofing paints are not a solution for bad drainage.
FAQs
Is Sika waterproofing better than Dr Fixit?
It depends on the situation. Both companies offer a wide range of products, so you need to compare like with like.
Can I compare Sika CoolCoat and Dr. Fixit Roofseal Select?
Yes, as both are liquid roof coatings, but check the latest specifications for both to see how they compare
Which is suitable for a tiled terrace?
It depends on the product. Check the technical data sheet for the tiled surface and see if any primer is required
Does waterproof coating always need mesh?
It depends on the system and the situation. Check the technical data sheet for requirements, recommendations, and areas where it does not apply. For example, according to the Dr. Fixit Roofseal Select datasheet, a glass-fibre mesh is required for the Roofseal Select system
Can I rely solely on the warranty when choosing between Sika and Dr Fixit?
No, you should compare what is covered, how it is applied, and how the surface was prepared. Always remember that a warranty is only as good as the company that provides it.
Conclusion
When comparing Sika waterproofing vs Dr Fixit, keep in mind that products from different manufacturers have different specifications. Sika CoolCoat and Dr. Fixit Roofseal Select, for example, have unique instructions and requirements, so you should consult their specifications before making a choice. Additionally, it is important to consider the source of water penetration, the nature of the surface to be protected, and the applicatorβs advice.