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Stylite Tapered Roof Insulation can be used as part of a new-build roofing system or as an overlay solution for existing flat roofs. The cut-to-fall layout channels water to drainage outlets, preventing problems such as ponding that can lead to premature failure of the waterproofing system. Tapered insulation removes the need for any structural roof fall.

Manufactured from high density expanded polystyrene (EPS), tapered blocks are bespoke to suit specific project specifications.

EPS is compatible with most chemicals and materials. It is rot-proof and durable, and will remain effective as an insulant for the life of the construction; it is not affected by bacteria, moulds or fungi and will not provide nutrient value for insects or vermin.

Features and benefits:

  • Lambda from 0.030 W/m·K.
  • Creates falls on new or existing roofs.
  • Cost-effective alternative to creating structural falls.
  • Ideal for concrete, metal or timber decks.
  • Lightweight, quick and easy to install.
  • Bespoke manufacturing off-site.
  • Minimal water absorption and permeability.
  • Compatible with EPDM and single ply membranes.
  • 100% recyclable.
  • No HFCs, CFCs or HCFCs.
  • Global Warming Potential (GWP) and an Ozone Depletion Potential (ODP) of zero.
  • BRE green guide rating: A+.
  • CE-marked.

Related literature

The following content references this product:

Standard product features

Size (l x w):

1200 x 1200 mm.

Compressive strength:

- At 10% to BS EN 13163:

  • EPS 70: 70 kPa.
  • EPS 100 and PlusTherm: 100 kPa.
  • EPS 150: 150 kPa.
  • EPS 200: 200 kPa.
  • EPS 250: 250 kPa.
  • EPS 300: 300 kPa.

- At 1% to BS EN 13163:

  • EPS 70: 21 kPa.
  • EPS 100 and PlusTherm: 30 kPa.
  • EPS 150: 45 kPa.
  • EPS 200: 60 kPa.
  • EPS 250: 75 kPa.
  • EPS 300: 90 kPa.

Thermal conductivity to BS EN 13163:

  • EPS 70: 0.038 W/m·K.
  • EPS 100: 0.036 W/m·K.
  • EPS 150, EPS 200, EPS 250 and EPS 300: 0.034 W/m·K.
  • PlusTherm: 0.030 W/m·K.

Nominal density to BS EN 1602:

  • EPS 70: 15 kg/m³.
  • EPS 100 and PlusTherm: 20 kg/m³.
  • EPS 150: 25 kg/m³.
  • EPS 200: 30 kg/m³.
  • EPS 250: 35 kg/m³.
  • EPS 300: 40 kg/m³.

Reaction to fire to EN 13051-1:

  • Standard EPS: Euro class F.
  • Fire rated EPS: Euro class E.

Bending strength to EN 12089:

  • EPS 70: 115 kPa.
  • EPS 100 and PlusTherm: 150 kPa.
  • EPS 150: 200 kPa.
  • EPS 200: 250 kPa.
  • EPS 250: 350 kPa.
  • EPS 300: 450 kPa.

Water vapour permeability to BS EN 13163:

  • EPS 70: 0.015–0.030 (mg Pa.h.m).
  • EPS 100, EPS 150 and PlusTherm: 0.009–0.020 (mg Pa.h.m).
  • EPS 200, EPS 250 and EPS 300: 0.006–0.015 (mg Pa.h.m).

Dimensional stability to BS EN 13163:

DS (N) 5.

Options

Thickness:

  • Tapered roof board: 25–600 mm. Consult manufacturer.
  • Bespoke fall designs: 25–1200 mm. Consult manufacturer.

NBS Specification

NBS Create logo
This product is associated with the following NBS Create clause:
45-45-65/380 Expanded polystyrene (EPS) board

Product specification

An important note about specifying

Manufacturer

Name:

Styrene Packaging & Insulation

Tel:

+44 (0)1274 691777

Product reference

Tapered Roofing Insulation

Type

[EPS 70]
[EPS 100]
[EPS 150]
[EPS 200]
[EPS 250]
[EPS 300]
[PlusTherm]

Thickness

[ ______ ]

Manufacturer details

Morley Carr Road,
Low Moor,
Bradford,
West Yorkshire, BD12 0RA
Tel +44 (0)1274 691777
Fax +44 (0)1274 693832
NBS Plus