Pervious Pavers: Managing Stormwater and Surface Heat Together
What Makes a Paver “Pervious”
A pervious paver is built with interconnected voids so water passes through it rather than running off. Pervious concrete typically has at least 15% void content, and the open structure lets rain move into a gravel sub-base and then into the soil, or into a storage layer. That structure delivers three things:- Reduced runoff: less water leaves the site during peak rain.
- Groundwater recharge: water returns to the aquifer instead of the storm drain.
- Surface cooling: moisture in the voids evaporates and cools the pavement.
Why Stormwater Matters in India
Urban flooding has become a yearly event in Chennai, Mumbai, Bengaluru and Hyderabad. Part of the cause is impervious surface. Roads, plots and car parks send rainwater into drains built for lower loads. Stormwater management pavers reduce the burden at source, so a development can handle intense rain without oversizing downstream infrastructure. For developers, that can mean easier approvals, smaller detention tanks and a stronger case for green rating credits.The Heat Side of the Story
Dark asphalt and plain grey concrete absorb sunlight and store it. At night they release it, which is why urban heat islands persist after sundown. Using heat-reducing pavement works on the problem in two ways: lighter, reflective finishes return more sunlight, and porous structure supports evaporative cooling. Panache Green’s reflective Perco Pavers add the first mechanism. Combined with the permeable structure of Per Co Flex pavers, the surface stays cooler than standard paving under the same sun. Cool Top Xpress coatings can also be applied to existing pavements, with SRI values ranging from about 35 to 102 depending on colour.Typical Applications
- Parking lots and driveways
- Pedestrian plazas and footpaths
- Campus roads and courtyards
- Industrial yards with light traffic
- Pool decks and terrace gardens
How the System Is Built
Performance depends on the layers under the paver as much as the paver itself.- Surface layer: permeable or reflective paver.
- Bedding layer: clean, open-graded aggregate.
- Base and reservoir: larger stone storing water temporarily.
- Subgrade: soil with enough infiltration capacity, or an overflow drain.
Choosing Permeable Paving Solutions
When comparing permeable paving solutions, ask for:- Measured permeability and void content.
- Compressive strength for the intended load.
- Reflectance or SRI of the surface colour.
- Maintenance requirements.
What to Ask Your Contractor
Before tendering, ask who is responsible for the sub-base design, because the paver gets blamed when a poorly compacted base fails. Request a mock-up panel on site, and test infiltration rate in the field with a simple ring test. Panache Green encourages clients to see a finished installation, not only a data sheet.Maintenance Realities
Pores clog if silt and leaves accumulate. A simple routine keeps performance steady:- Sweep regularly.
- Use vacuum sweeping or low-pressure washing, in line with supplier advice.
- Keep landscaped soil from washing onto the surface.
- Inspect after each monsoon.
Where Panache Green Fits
Most companies treat pavement, roof and wall as separate purchases. Panache Green‘s view is that they belong to one envelope strategy, from roof to road. A site that pairs cool roofs with pervious pavers reduces heat at both levels and manages rain better, which is the logic behind our portfolio of cooling, insulation, waterproofing and paving under one brand.FAQs
They handle a large share of normal storm events. Design includes overflow for extreme rainfall.
Surface temperatures are typically lower than conventional paving, especially with reflective finishes. Results depend on climate and moisture.
Yes, for light to medium traffic when specified correctly.
Regular sweeping, with deeper cleaning once or twice a year depending on dust levels.
Often yes, as retrofits during resurfacing. Panache Green can assess drainage first.
Benefits Of Choosing Panache’s Green Rated Products:
Get Free Audits
Get Free QuoteOur Partnership Programs
Cross complemented product and services providers can be enrolled under this partnership program (Roofing contractor, HVAC contractors, HVLS Fans supplier)
Know More
Any individual from consultation fraternity to execution contractors can participate in such a program.
Know More
DSA (Direct selling Agent) partnership program provides opportunities to become entrepreneur in COOL ROOFING industries to each and every individual who wants to make their career as freelancers.
Know More
Green Talk Initiatives
Partner with Panache Now !
Our Affiliations
We are associated with the leading organizations in India and abroad and are in constant engagement with them to further their efforts on environmental sustainability for our planet.
Client Success Stories
I really appreciate Neetu ma’am and the panache Team for giving us a perfect solution to the heat related problems we experienced.
Before the application of cool tops, the temperature level on the store was 52 ° C, but after the application of Cool tops there seemed a reduction in surface temperature by 4 ° C, the temperature in the area where I sit was 40 °C which has reduced to 37 °C, there is a substantial difference in the ambient temperature, Since last 4-5 months I’m not reducing the temperature of my AC below 28 , Even at 28 I couldn’t keep it for long as the room becomes cooler so I keep for few minutes and turn it off . I really appreciate Neetu ma’am and the panache Team for giving us a perfect solution to the heat related problems we experienced.
The result after applying cool tops from panache is you can see the smiling faces of our team after applying the coating system from panache .
This was an old shed so we had a direct roofing installed, no Insulation. We were very much clear after the discussion with Panache team that we should go for cool Tops coating instead insulation so the result is you can see the smiling faces of our team after applying the coating system from panache #GoGreenwithCoolTops
We took the temperature measurement of outside and inside premises. We noticed a good amount like you can say minimum 6 to 8 Deg C temperature difference.
Looking at the Indian climatic condition during summers, where the temperatures were going too high and whenever it goes up to the peak level, the temperature in the factory shop floor rises affecting the efficiency of the workers. We had a thought in our mind that is there any way to control the temperature, then we came across the Panache company and got in touch with them, after explaining them our problem they came to visit our factory. The team is very committed and technically competent to give us the exact solution for the temperature reduction at the factory. We noticed minimum 6 to 8 °C temperature difference. Thereafter, we received positive feedback from the workers so we decided to go ahead with another project in our office premises. As far as execution is concerned, Panache are experts in this domain. They even contacted us after completion of our installation and ensured that we were satisfied with the workmanship. If someone really wishes to reduce temperature in their premises, I would highly recommend Cool Tops coating from panache – I wish them best of luck for their future projects!
Their prices and services are definitely worth the solution given & treatment done with complete transparency.
I have hired Panache services for the waterproofing & Cooling Treatment on one of the roofs of Parul University premises. Their prices and services are definitely worth the solution given & treatment done with complete transparency. I can definitely recommend them to organizations & people looking for thermal comfort along with waterproofing solutions also.
Totally satisfied by the service received.
I am very impressed by their work on how they provide customized solutions for every problem we have & every task they take up.
The Indoor Temperature has decreased to almost 5 °C. Cool Tops provides Cool Buildings without ACs.
In one of our projects, we had a requirement where AC was not viable and people working under that premises were very much disturbed. To solve that problem, we have consulted Panache for the solution. Panache has provided the full proof solution and after the completion of the Cool Tops Installation, we were much relieved. The indoor temperature has decreased to almost 5 degrees. I could say Cool Tops provide Cool buildings without AC.
The experience for the quality of products with consistency is very appreciable.
I am an engineer & contractor taking turnkey projects. We have used Panache’s various waterproofing products & I recommend Panache's Cool Tops, the special 5 coat system which gives thermal comfort with sustainable performance. The experience for the quality of products with consistency is very appreciable.
I really appreciate their efforts for perfection & sound knowledge of the technology.
We have met the Panache Team from one of our friend’s references who have already taken the services. I must say, they are very professional in what they do. I really appreciate their efforts for perfection & sound knowledge of the technology.
