Jablite is the UK's largest producer of EPS products for insulation and civil engineering applications

1. Premium Inverted Roof Insulation

Overview

Jablite's new range of Premium Inverted Roof Insulation is KIWA-certified and is available in a wide range of densities to meet the specified compression performance for applications from light traffic maintenance roofs to car parks and podiums.

An inverted roof construction places thermal insulation above the waterproof layer. This maintains the waterproof membrane at an even temperature and protects it from the damaging effects of UV radiation or the effects of the weather. The specified thermal performance of the inverted roof is achieved through the roof design and the thickness of the insulation used.

Key Benefits
  • KIWA Certified (BAR-19-098-S-A-UK)
  • Suitable for use on flat roofs with zero pitch and slopes up to 10°
  • Resistant to the effects of freeze/thaw
  • Meets the application’s required compressive strength
  • Supplied in 200, 300, 500, 600 and 200+ grade
  • 100% recyclable

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Downloads & Specifications
1. Premium Inverted Roof Insulation

BBA Certificates and other supporting documents can be found in Technical Resources

Technical Resources
Technical information
Product specification

Jablite supplies insulation boards in a range of grades suitable for all flat roof applications.

Jablite Premium Inverted Roof Insulation boards in 200, 300 and 200+ grades have adequate resistance to the loads associated with light maintenance traffic on roofs, and to pedestrian foot traffic on balconies and roof terraces.

Jablite Premium  Inverted Roof insulation in 500 and 600 grade meets higher loading requirements in applications such car parks and podiums.

Where paving slabs are to be placed over the insulation on spacer pads the point loads should be calculated to an equivalent uniformly distributed load (See datasheet for example).

Thermal Conductivity (W/mK)

Jablite Grade 200 200+ 300
(W/mK) 0.033 0.031 0.033

 

Dimensions

Size
1200 x 1200mm (with 15mm rebated edges). Board coverage 1.44m²
Thickness
Single thickness 50mm up to 240mm
(in 5mm increments)

 

U-value table

The table below shows average thickness of Jablite Inverted Roof Insulation range required to achieve U values from 0.25 W/m²K down to 0.10 W/m²K. The calculation is based on an inverted roof construction of 150mm reinforced concrete deck, hot melt waterproofing, Jablite Inverted Roof Insulation, Jablite Filter Membrane, drainage factor ƒx  = 0.001 and average rate of precipitation (P) ≤ 3.000 (mm/day).

U-value (W/m2K):
U Value THICKNESS (mm)
200 Premium* 200 Premium+* 300 Premium* 500 Premium 600 Premium
0.25 125 120 125 145 150
0.24 130 125 130 150 155
0.23 140 130 140 155 160
0.22 145 135 145 165 170
0.21 150 140 150 170 175
0.20 160 150 160 180 185
0.19 165 155 165 190 195
0.18 175 165 175 200 205
0.17 185 175 185 215 220
0.16 195 185 195 225 235
0.15 210 195 210 240 245
0.14 225 210 225 255 265
0.13 240 225 240 280 285
0.12 260 245 260 300 305
0.11 285 265 285 325 335
0.10 310 290 310 360 365
FAQ
+Does Jablite manufacture to ISO 14001?
Yes, Jablite is certified to the BS EN ISO 14001 Environmental Management System standard.
+Is Jablite accredited to ISO 9001?
Yes, all Jablite sites are accredited to BS EN ISO 9001 Quality Management System.
+How are Jablite products rated in the BRE Green Guide to Specification?
Jablite manufactures EPS (expanded polystyrene) products which are A+ rated in the BRE Green Guide, except for Jablite 300 grade insulation for inverted roofs which has an A rating