Terrace waterproofing and roof protection in Ludhiana, Punjab

In Ludhiana, a leaking roof above a hosiery godown or knitting hall can damage thousands of garments in a single storm. Factory roofs here are also busy: exhaust fans, skylights, roof ventilators, water tanks and pipes break up the surface, and each one is a potential leak point. Homes and commercial buildings face the familiar problems of cracked terraces, blocked outlets and parapet leaks. Across all of them, Punjab's weather adds hot summers, a heavy monsoon and cold, foggy winters.

Factory roofs with openings

Concrete roofs over production halls and godowns in Ludhiana commonly leak at:

• exhaust fan and ventilator kerbs, where the upstand isn't sealed into the waterproofing
• skylights, around the frame and at cracked glazing seals
• pipe and cable penetrations added over the years
• rainwater outlets, often too few for the roof area and easily blocked
• cracks along beam lines from thermal movement

Our process is to map leaks from inside the building, match them to roof features, repair cracks and ponding areas, detail every kerb, skylight, penetration and outlet, and then apply a liquid PU membrane with a UV-stable topcoat. Where stock sits under known leaks, we can seal those points first as an urgent repair.

If your godown has a metal sheet roof rather than concrete, see our industrial shed waterproofing page.

Homes and commercial buildings

On houses, shops and commercial buildings, most leaks come from parapet junctions, outlets, cracks and fixings for water tanks, solar panels and antennas. A properly detailed PU membrane with a heat-reflective topcoat stops leaks and helps keep top floors cooler in summer.

Winter fog and dew

Ludhiana winters bring fog and heavy dew. A roof can look dry by midday and then be wet again by late afternoon. Coatings applied on a damp surface, or that get dew on them before curing, can fail. In winter we:

1. check surface moisture and dew point before starting
2. apply coatings only in the drier middle part of the day
3. allow longer curing times between coats
4. prefer to schedule large roofs for October–November or February–April

Keeping roofs clear

Factory roofs collect lint, dust and debris that block outlets. Blocked outlets lead to ponding, and ponding water finds any weakness. Regular outlet cleaning before and during the monsoon is one of the cheapest ways to protect a waterproofed roof.

Scheduling around production

Roof work usually doesn't disturb production below. For work near exhaust fans and ventilators, fans may need to be switched off for short periods. We plan these with your maintenance team.

FAQs

Can leaks over our godown be fixed before the full roof is done?

Yes. Known leak points above stock can be sealed urgently, with the full waterproofing scheduled afterwards.

Do exhaust fans need to be removed?

Usually not. We seal around their kerbs. Fans may be switched off briefly while work is done next to them.

Can roof waterproofing be done in winter?

Yes, with care. Work is limited to drier hours and curing takes longer.

Call +91-8755475716 or send photos of your roof on WhatsApp. More details are on our terrace and roof waterproofing page.