At GharPlans, we provide a complete premium roof waterproofing and heatproofing service for new houses, so a rooftop that isn't even finished yet is already protected against Pakistan's two biggest roof problems: monsoon leaks and summer heat. Rather than arranging separate contractors for waterproofing, insulation, and finishing, this service brings all three into one supervised roofing installation — genuine Sika waterproofing chemicals, fiber mesh reinforcement, and heat-insulation board, applied in the right order, on-site.
How Ghar Plans Delivers This Roofing Service
Every roof we treat goes through the same six-step process, in the same order, so the result is consistent whether it's a single house or part of a larger project. Here's exactly what happens at each stage:
Step 1: Roof Surface Cleaning. Before anything is applied, our team clears the roof surface of dust, loose particles, old debris, and any flaking material. This isn't a token wipe-down — a waterproofing coat can only bond as well as the surface underneath it, so any dust, oil, or loose material left behind becomes a weak point where the coating can peel or fail early. On a new house this stage is usually straightforward, since the roof hasn't been exposed to years of wear, but it's still the step that determines how well everything applied afterward performs.
Step 2: Sika Seal-105 Waterproofing Coating. Once the surface is clean, we apply Sika Seal-105, a two-component, polymer-modified cementitious waterproofing coating, in two coats, with the second applied at right angles to the first for full, jointless coverage. Because it's cement-based rather than a simple paint-on membrane, it bonds mechanically and chemically into the concrete itself, sealing hairline pores and cracks before they can ever become a leak, while still letting the roof breathe. This is the layer that does the actual job of keeping monsoon rain out of your roof slab, which is why it goes directly onto the bare concrete before anything else.
Step 3: Fiber Mesh Reinforcement. Next, we install fiber mesh across the treated surface, with particular attention to joints, corners, and transition points. Concrete and masonry expand and contract at slightly different rates as temperatures shift through the day and across seasons, and that mismatch is one of the most common reasons hairline cracks appear on a roof over time. Embedding fiber mesh into this layer lets the surface absorb that movement instead of splitting along a crack line, adding a second layer of protection that works alongside — not instead of — the waterproofing coat underneath it.
Step 4: Jumbolon Heat Insulation. With the roof waterproofed and reinforced, we fit Jumbolon heat insulation board across the surface. Jumbolon is a high-density XPS (extruded polystyrene) insulation board, supplied in 1, 1.5, and 2 inch thicknesses, and its job is to physically block heat from radiating down through the slab into the rooms below. This is the step with the biggest direct impact on indoor temperature during Lahore's and Punjab's peak summer months — a roof with waterproofing but no insulation stays watertight, but the top-floor rooms underneath it will still bake in the afternoon sun.
Step 5: Roof Packing. Once the insulation board is in place, we apply a protective packing layer over it. This layer protects the insulation from foot traffic and the elements during the rest of construction, and helps prepare an even, properly sloped surface for the final coat to go on top of. Think of it as the buffer between the insulation and the finishing layer — without it, the insulation board would sit directly exposed and more vulnerable to damage before the roof is even finished.
Step 6: Final Finish — White Chips or Sikalastic®-510. The last step is the finish coat, and it's the one decision we leave to you. White Chips is the more traditional, economical option — reflective stone chips are broadcast over the surface to bounce sunlight away rather than let the roof absorb it, a proven technique used widely across Pakistan. Sikalastic®-510 is Sika's liquid-applied “cool roof” coating, and it does two jobs at once: it adds a further layer of waterproofing on top of everything already applied, while also reflecting solar heat the same way White Chips does. It's generally the more premium of the two finishes, and where budget allows, it gives you extra waterproofing insurance on top of an already-waterproofed roof. Our team can talk you through which option makes more sense for your specific roof and budget.
Together, these six steps turn a bare concrete roof into one that's sealed against rain, reinforced against cracking, insulated against heat, and finished to reflect the sun — all before the house is even handed over.
Why Roof Waterproofing & Heatproofing Matter for a New House
Treating a roof at the new-house stage, before finishes and furniture are in place, is when waterproofing and heatproofing genuinely work best — the surface is bare, fully accessible, and not yet disrupting anyone's daily life. On the waterproofing side, a cementitious coat like Sika Seal-105 bonds directly into the concrete and seals hairline pores and cracks before they ever become a leak. On the heatproofing side, Jumbolon insulation board and a reflective final finish work together to stop heat from radiating through the slab, which is what keeps upper-floor rooms noticeably cooler through Lahore's and Punjab's peak summer months. Doing both together, in the right sequence, is the difference between a roof that needs attention again in a year or two and one that's genuinely built to last.
Where We Provide This Roofing Service
This roof waterproofing and heatproofing service is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat. If your project is in one of these cities, our team can visit the site, assess the roof, and confirm timelines as part of your new house's construction schedule.
Why Choose Ghar Plans for This Roofing Service
Ghar Plans (GP Design and Construction) is a trusted Pakistani platform for house architectural design, interior design, construction, and building material supply, headquartered in Lahore with projects across cities throughout Punjab. Because we design and build houses ourselves, this isn't a service bolted onto a materials shop — it's carried out by a team that treats roofs as part of full house construction every day, using genuine Sika and Jumbolon products we also sell directly. That means fewer handoffs between your builder, your waterproofing contractor, and your material supplier, and one team accountable for how the roof performs once the house is lived in.
Frequently Asked Questions
What does this roof waterproofing and heatproofing service include?
It's a six-step, on-site process: roof surface cleaning, a Sika Seal-105 waterproofing coat, fiber mesh reinforcement, Jumbolon heat insulation, a protective roof packing layer, and a final White Chips or Sikalastic®-510 finish for heat reflection.
What's the difference between roof waterproofing and roof heatproofing?
Roof waterproofing seals the concrete slab against rain and moisture, using a cementitious coating and fiber mesh to close off cracks and pores. Roof heatproofing addresses temperature instead — insulation board and a reflective finish that stop the sun's heat from radiating through the slab into the rooms below. This service covers both in one process.
What does heatproofing of roof involve for a new house?
For a new house, heatproofing of roof means fitting Jumbolon heat insulation board over the waterproofed and mesh-reinforced surface, then finishing with either reflective White Chips or a Sikalastic®-510 cool-roof coating, so the roof reflects and resists heat rather than absorbing it.
Can this roofing service be used on an already-built, occupied house?
This service is designed for new houses at construction stage, when the roof surface is bare and fully accessible. Treating an already-finished, occupied roof usually involves extra steps to remove existing finishes first — if that's your situation, contact our team and we'll advise on the right approach for your roof.
What's the difference between White Chips and Sikalastic®-510 finish?
White Chips are reflective stone chips broadcast over the surface to bounce sunlight away — a proven, economical finish. Sikalastic®-510 is a liquid-applied Sika coating that adds an extra waterproofing layer on top of heat reflection, generally the more premium of the two options. Our team can help you choose based on your roof and budget.
Which cities does Ghar Plans provide this roofing service in?
This service is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat.
How do I book this roof waterproofing and heatproofing service?
Message our team on WhatsApp or reach out through our Contact Us page with your city and house details, and we'll arrange a site visit and timeline as part of your construction schedule.
Protect Your New House From Day One
A roof treated before the house is even finished is a roof that won't need attention again for years. Message our team on WhatsApp or get in touch through our Contact Us page to schedule your roof waterproofing and heatproofing service in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, or Gujrat.