Wall Heatproofing for Sun-Facing Walls: Cooler Rooms Without Changing the Building

West- and south-facing walls take the full afternoon sun and radiate heat into bedrooms and offices well into the evening. A heat-reflective wall coating reduces how much of that heat gets through, in the same way a roof coating does.

It suits top-floor flats, houses with exposed side walls and commercial buildings with large sun-facing elevations.

Why it happens in Pakistani homes and buildings

Masonry walls store heat and release it slowly inward. Reflecting the sun at the surface lowers the wall temperature and the room behind it.

Signs you need wall heatproofing

• Rooms behind a sun-facing wall that stay hot at night
• Walls warm to the touch from inside in the evening
• Peeling or faded paint on the exposed elevation
• High cooling costs in one part of the building

How Shield Agro does wall heatproofing

1. Inspection. We identify the walls taking the most sun and check plaster condition and cracks.
2. Preparation. Walls are washed, loose plaster repaired and cracks filled.
3. Priming. A primer is applied so the coating bonds to the plaster.
4. Reflective coating. The heat-reflective coating is applied in multiple coats in the agreed colour.

What is included

• Sun-exposure assessment
• Wall washing and plaster repair
• Crack filling
• Primer and multi-coat reflective finish
• Light tint options
• Water-repellent treatment on request

What does wall heatproofing cost in Pakistan?

Wall Heatproofing is priced on site after a free inspection. Priced per square foot of wall area and access requirements. There is no call-out charge, and the price we agree is the price you pay.

How to keep the problem from coming back

• Treat the walls with the most sun exposure first
• Combine with crack repair and seepage treatment on the same elevation
• Choose a light finish for the coating
• Shade with plants or screens where possible

Frequently asked questions

Which walls should be treated?

The walls that take afternoon sun, usually west and south facing, give the most benefit. Treating every external wall is rarely necessary. We assess the house and recommend only the walls that matter.

Does the coating have to be white?

Lighter colours reflect more heat, but the coating can be tinted to light shades so it fits the house. We show you the options and explain the trade-off honestly.

What affects the price?

The wall area, height and access (scaffolding for upper floors), the condition of the plaster, and the number of coats. We measure and confirm a fixed price per square foot.

Book wall heatproofing with Shield Agro

We are based in Johar Town, Lahore, and cover waterproofing across Pakistan, with teams in Lahore, Karachi, Islamabad, Rawalpindi, Faisalabad and Multan and scheduled visits elsewhere. Read the full service page for Wall Heatproofing, book a free inspection, call 0321-4583500 or message us on WhatsApp with a photo of the problem and your area. We reply under 30 minutes in working hours.