Summit XPS insulation Boards for ceilings in South Africa
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Summit XPS

Price range: R157,00 through R1160,00

Summit XPS insulation boards bring rugged reliability to any Gauteng project. Forged from polystyrene granules through a high-heat extrusion process, these sturdy sheets are packed with additives to resist flames and wear. Shaped with precision into boards with smooth or grooved edges, they’re ready to tackle anything—from ceilings to cavity walls.

Whether you’re insulating a home or a warehouse, Summit XPS stands up to the challenge with unbeatable thermal control. Roofing Insulation delivers these powerhouses to Johannesburg, Centurion, and Pretoria, giving your Gauteng build the edge it needs to stay efficient and strong.

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Summit XPS Ceiling boards in South Africa

Summit XPS Ceiling Boards

Meet Summit XPS—your go-to insulation board for tackling heat and moisture in style. Made through a cutting-edge extrusion process, these rigid polystyrene boards blend strength with top-tier thermal performance. Starting as granules, they’re melted, mixed with flame retardants, and expanded into tough boards with tongue-and-groove edges for a snug fit.

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Summit XPS Insulation Boards

Benefits of Summit XPS Insulation

  • Top-Notch Heat Control: With R-values from 1.0 (30mm) to 2.67 (80mm), it traps heat or cool air, cutting energy bills year-round.
  • Energy Savings: Reduces the need for constant heating or cooling, making Gauteng buildings more energy efficient.
  • Moisture Resistance: Absorbs just 0.5% water by volume, keeping performance strong in humid conditions.
  • Rock-Solid Strength: Boasts 310-360 kPa compressive strength, handling heavy loads without buckling.
  • Long-Lasting: Built to last with no maintenance.
  • Eco-Friendly: Made with zero ozone-depleting gases.
  • Fire Safety: Rated B/B1/2 (SANS 428)—shrinks from flames.
  • Versatile Fit: Tongue-and-groove edges lock tight for ceilings, walls, or floors, reducing gaps.
  • Lightweight Ease: Easy to cut and install, speeding up Gauteng builds.
  • Custom Sizes: Available in lengths from 1.8m to 8m.
  • Comfort Boost: Keeps indoor temps steady (21-28°C).
  • Cost Cutter: Lowers energy costs and skips upkeep expenses—no adjustments needed.
  • Healthier Spaces: Cuts condensation, reducing mold risks.
  • Flexible Use: Works for nail-up ceilings, over-purlin roofs, underfloor slabs, and cavity walls.
  • UV Protection: Paintable to shield against sun damage.
  • Stable Temps: Thicker boards (up to 80mm) even out temperature swings in any climate.

30mm Summit XPS

30mm Summit XPS Insulation delivers a winning mix of durability, heat control, and flexibility for Gauteng homes and businesses. Crafted through a precise extrusion process, this extruded polystyrene (XPS) board starts as granules, melted and shaped into a rigid, high-density sheet.

Technical Specs

  • Thickness: 30mm Summit XPS
  • Material: Extruded Polystyrene (XPS)
  • Thermal Conductivity: 0.028 W/m·K
  • Density: 35-37 kg/m³
  • R-value: 1.0 (Fully Aged)
  • U-value: 0.875
  • Compressive Strength: 310-360 kPa
  • Board Length: 1.8m to 8m
  • Board Width: 600mm
  • Water Absorption: 0.5% by Volume
  • Fire Rating: B/B1/2 (SANS 428)

At 30mm thick, it’s the go-to pick for ceiling insulation in residential and commercial spaces, locking in comfort while slashing energy costs. Roofing Insulation supplies it across Johannesburg, Centurion, and Pretoria—perfect for projects that demand lasting results.

40mm Summit XPS

40mm Summit XPS Insulation steps up with extra thickness, blending tough extruded polystyrene (XPS) with top-notch heat and moisture resistance. Formed through a high-tech extrusion process, polystyrene granules are melted, mixed with flame retardants, and shaped into rigid boards that stand strong under pressure.

Technical Specs

  • Thickness: 40mm Summit XPS
  • Material: Extruded Polystyrene (XPS)
  • Thermal Conductivity: 0.028 W/m·K
  • Density: 35-37 kg/m³
  • R-value: 1.33 (Fully Aged)
  • U-value: 0.656
  • Compressive Strength: 310-360 kPa
  • Board Length: 1.8m to 8m
  • Board Width: 600mm
  • Water Absorption: 0.5% by Volume
  • Fire Rating: B/B1/2 (SANS 428)

At 40mm, it’s a prime pick for Gauteng ceilings and walls needing serious energy savings and steady indoor comfort. Roofing Insulation delivers it straight to Johannesburg, Centurion, and Pretoria—ideal for demanding projects that won’t settle for less.

50mm Summit XPS

50mm Summit XPS Insulation is the heavyweight champ of insulation boards, delivering unbeatable heat and sound control for Gauteng’s toughest projects. Made from extruded polystyrene (XPS) through a high-precision process, it starts as granules melted into a sturdy, thick sheet with built-in flame resistance.

Technical Specs

  • Thickness: 50mm Summit XPS
  • Material: Extruded Polystyrene (XPS)
  • Thermal Conductivity: 0.028 W/m·K
  • Density: 35-37 kg/m³
  • R-value: 1.67 (Fully Aged)
  • U-value: 0.525
  • Compressive Strength: 310-360 kPa
  • Board Length: 1.8m to 8m (300mm increments)
  • Board Width: 600mm
  • Water Absorption: 0.5% by Volume
  • Fire Rating: B/B1/2 (SANS 428)

At 50mm, this board offers maxed-out energy efficiency and moisture defiance, making it a favorite for ceilings and walls that need the best. Roofing Insulation brings it to Johannesburg, Centurion, and Pretoria—ready to transform your space with long-term savings and comfort.

Additional information
Board Thickness

30mm XPS Boards, 40mm XPS Boards, 50mm XPS Boards
Board Length

1800mm(L) x 600mm(W), 2100mm(L) x 600mm(W), 2400mm(L) x 600mm(W), 2700mm(L) x 600mm(W), 3000mm(L) x 600mm(W), 3300mm(L) x 600mm(W), 3600mm(L) x 600mm(W), 4000mm(L) x 600mm(W), 4200mm(L) x 600mm(W), 4800mm(L) x 600mm(W), 5400mm(L) x 600mm(W), 6000mm(L) x 600mm(W), 6600mm(L) x 600mm(W), 7200mm(L) x 600mm(W), 8000mm(L) x 600mm(W)
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Shipping & Delivery

Shipping and Delivery

At Roofing Insulation, we’re committed to delivering top-quality insulation products, including XPS ceilings and a range of insulation materials, right to your door. To ensure a smooth and efficient delivery process, please review our guidelines below.

1. Delivery Process for Insulation

  • Timeline: We deliver stock insulation orders within 3-5 business days from the time payment is confirmed, helping you stay on track with your project deadlines.
  • Minimum Order: A minimum of 5 rolls is required to qualify for delivery. Please ensure your order meets this threshold to proceed with shipping arrangements.
  • Cost: Delivery fees are calculated separately and based on your distance (in kilometers) from our warehouse.

2. Delivery Process for XPS Boards

  • Transport: XPS ceiling boards are shipped via large truck to guarantee safe and secure delivery. Our team is equipped to serve locations including  Johannesburg, Pretoria, Centurion.
  • Custom Orders: We do not stock pre-cut XPS boards. Each order is custom-cut to your specifications, ensuring the exact size and thickness you need for your project.
  • Payment Deadline: To secure delivery for the following week, payments must be received by Thursday of the current week. This gives us time to process and schedule your order.
  • Cost: Delivery charges are separate and determined by your distance (in kilometers).

Important Note: All XPS ceiling boards are cut to order based on your specific requirements. Once cut, we cannot accept returns or issue refunds. We strongly recommend verifying your measurements and specifications before ordering. If you’re unsure or need guidance, contact us before we process your order—we’re happy to help!

Delivery Locations

We proudly ship across Gauteng, including major areas like Johannesburg, Pretoria, Centurion. For customers outside these regions, please get in touch with us to discuss custom delivery options.