Water damage rarely announces itself. It shows up years later as a stained ceiling, a crumbling patch of plaster, or a roof that's suddenly letting rain through — and by then, you're not just waterproofing anymore, you're paying for restoration: breaking out damaged finishes, drying out the structure, and redoing work that should have lasted. Ghar Plans' roofing service for new houses is built to make sure that bill never arrives, by treating the roof properly once, while it's still under construction.
How This Roofing Service Protects a New House
The whole point of doing this at construction stage is that it happens before there's anything to damage — no finishes to break out, no furniture in the way, no family living underneath while it's done. Here's exactly what happens:
Stage 1: Sika Seal-105 Waterproofing. Once the roof's structural work — what your team refers to as the lantern work — is complete, we apply Sika Seal-105 as the first waterproofing layer. This is a cementitious, polymer-modified coating that bonds directly into the bare concrete, sealing the pores and hairline gaps that would otherwise let seepage and moisture into the slab. Starting here, before anything else touches the roof, means the waterproofing is sealed against the structure itself rather than sitting on top of something else.
Stage 2: Diamond Jumbolon Heat Insulation. With the roof waterproofed, we install Diamond Jumbolon heat insulation board across the surface. Jumbolon is a high-density XPS insulation board that physically blocks heat from radiating down through the slab, which is what keeps the rooms underneath noticeably cooler through summer — this is the step that does the actual heatproofing of house temperature, not just the roof surface.
Stage 3: DPC Protective Mix with Sika-1. Finally, we apply a strong DPC (damp-proof) mix, integrated with Sika-1 waterproofing chemical, over the insulation layer. This creates a durable, protective surface that seals and levels the top of the insulation — and once it's cured, you can go straight to plaster, tiles, or whatever roof finish you've chosen, without touching the waterproofing underneath it again.
The result is a roof that's watertight and heat-resistant before a single tile or coat of plaster goes down — protection that's built into the structure, not added as an afterthought.
Why Preventing Water Damage Beats Restoring It
It's easy to think of waterproofing as optional — something you can always add later if a leak shows up. In practice, “later” usually means restoration: identifying where water has gotten in, removing damaged plaster or tiles, letting the structure dry out, and then redoing the waterproofing anyway, except now around finishes that are already in place and a family that's already living there. Doing it once, properly, while the roof is still bare and the house is still being built, is the only point in a house's life where this work is simple. That's the real reason this service exists on a new-house timeline rather than as a repair call.
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 house is under construction in one of these cities, our team can coordinate this stage directly with your build schedule.
Already Dealing With a Leak or Damage?
This service is built for a roof that's still under construction, with nothing to protect yet but bare concrete. If your house is already built and you're dealing with an existing leak, cracking, or heat coming through the roof, that's a different job — see our roof waterproofing, heatproofing & repair service for old houses instead, which is built specifically for restoring a roof that's already in use.
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 build houses ourselves, this service is scheduled as part of your actual construction timeline rather than as a separate contractor visit — and we supply genuine Sika Seal-105, Diamond Jumbolon, and Sika-1 directly, so the same materials this service uses are also available to you on their own.
Frequently Asked Questions
What does this new-house roof waterproofing and heatproofing service include?
Three stages applied once the roof's structural work is complete: a coat of Sika Seal-105 waterproofing, Diamond Jumbolon heat insulation board, and a DPC protective mix with Sika-1 over the insulation, leaving the roof ready for plaster or tile finishing.
How does waterproofing during construction prevent water damage and restoration costs later?
A crack or gap in an unprotected roof lets water into the structure over time, and fixing that after the fact means restoration — breaking out damaged finishes, drying the area, and redoing the waterproofing anyway. Sealing the roof properly while it's still bare avoids that cycle entirely, since there's nothing yet for water to damage.
What does heatproofing of house mean, and how is it achieved here?
Heatproofing of house refers to reducing how much heat gets into the rooms below the roof, not just treating the roof surface. Here, that's done with Diamond Jumbolon insulation board, which physically blocks heat from radiating down through the slab into the living space underneath.
What's the difference between this and your service for an already-built house?
This service is for a roof still under construction — bare concrete, no finishes yet, so waterproofing goes on directly and simply. An already-built house usually needs grinding, cleaning, and crack repair first, since the roof has years of wear; that's covered by our old-house roofing service instead.
What is DPC, and why is a DPC mix with Sika-1 used over the insulation?
DPC (damp-proof course) refers to a waterproof, protective layer used to stop moisture movement. Here, a DPC-style mix combined with Sika-1 integral waterproofer is applied over the insulation board to seal and level the surface, so it's fully protected and ready for plaster or tiles without disturbing the layers underneath.
When should this service happen during construction?
It's applied once the roof's structural work is complete — what our team refers to as the lantern work stage. The exact timing can vary slightly by project, so it's worth confirming the right point in your specific build schedule with our team directly.
Which cities does Ghar Plans provide this roofing service in, and how do I book it?
This service is currently available in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, and Gujrat. Message our team on WhatsApp or reach out through our Contact Us page with your city and construction timeline, and we'll coordinate the visit.
Build In the Protection, Skip the Restoration
The cheapest time to deal with water damage is before it happens. Message our team on WhatsApp or get in touch through our Contact Us page to schedule your roof waterproofing and heatproofing service as part of your new house's construction timeline in Lahore, Sialkot, Rawalpindi, Islamabad, Gujranwala, or Gujrat.