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POLYSTYRISOL

USE

Polystyrisol is an ideal insulation for cavity walls, floors, flat roofs, inverted roofs, attics, walls, refrigerating rooms and cold stores.

PRODUCT DESCRIPTION

The solid Polystyrisol boards, which are made from extruded polystyrene, are moisture-resistant, non-perishable and resistant to rot and vermin. They are also made in a self extinguishing version and are recyclable.

PART 1 - INTRODUCTION

1.1 Surface finishings

  • Skin on (smooth)
  • Skin off (rough)
  • Waffle board
  • Skin on with thick grooves
  • Skin off with fine grooves

1.2 Advantages

  • Excellent thermal insulation thanks to its low coefficient of heat conduction
  • Minimal water absorption
  • High resistance to compression
  • Non-perishable and non-ageing
  • Resistant to rot and vermin
  • Monolithic board; no risk of delamination
  • Easy to install
  • Made in a self-extinguishing version
  • Recyclable

PART 2 - INVERTED ROOFS

2.1 Inverted Roofs

The inverted roof is a construction by which the Polystyrisol insulation boards are placed above the waterproof membrane.

The insulation is loaded with an additional ballast layer.

2.2 Benefits

This construction has a number of benefits:

  1. Protects the roof covering from temperature fluctuations and UV radiation.
  2. Protects from mechanical damage.
  3. The structural deck increases resistance to fire and the ballast layer prevents the fire from spreading.
  4. Installation is possible in any weather.
  5. The roof covering (at the warm side of the insulation) acts as a waterproof layer and a water vapour barrier where by the construction and installation of the roof becomes much easier.
  6. Insulation is being installed loosely on the roof covering.

2.3 Installation

The surface of the roof must be clean and flat. Deviation from flat not greater than 10mm.

The Polystyrisol boards must be loosely laid and with shranked joints. Allowance must be made to avoid cold bridging at expansion joints.

A separation layer must be placed on top of the Polystyrisol boards, covered afterwards with ballast layer of gravel or pavors.

PART 3 - TECHNICAL CHARACTERISTICS

3.1 PRODUCT DATA

Standard sizes
Lengths   Standard
1250, 2500 and 2800 mm*
Widths   600 mm
Thicknesses   20 - 80 mm
Tolerances Length > 1000 mm: ± 10 mm
  Width ± 8 mm
  Squareness = 5 mm/m
  Thickness T1: = 50 mm: ± 2mm
> 50 - 100 mm: -2 / +3 mm
  Rough ± 0.5 mm
  Waffle board ± 0.5 mm
* other lengths on demand

3.2 Thermal insulation

Technical properties
Density 33 Kg/m3; (± 3)
Thermal conductivity
(1)		 20 - = 60 mm: 0.035 W/mK
> 60 -  = 160 mm: 0.037 W/mK
Resistance to compression at 10% deformation 20 < 40 mm: 0.2 N/mm2;
> 40 mm: 0.3 N/mm2;
Capillarity None
Water absorption (immersion 28 days) 0.7 %
Water absorption by diffusion 3.0 %
Coefficient of linear expansion  (DT 60°C) 0.07 mm/m°K
Effectiveness of resisting fire E euroklasse
Temperature resistance +70/-60 °C

3.3 Thermal resistance

Thermal resistance (m2K/W)
Thicknesses 20 25 30 35 40 50 60 65 70 75 80
 RD 0.55 0.70 0.85 1.00 1.10 1.40 1.70 1.75 1.90 2.00 2.15

PART 4 - PACKAGING

Packaging of Polystyrisol boards
Thickness mm Quantity M2/colli M3/colli
    125x60cm 250x60cm 125x60cm 250x60cm
20 20 15 30 0.3 0.6
25 16 12 24 0.3 0.6
30 14 10.5 21 0.315 0.63
40 10 7.5 15 0.3 0.6
50 8 6 12 0.3 0.6
60 7 5.25 10.5 0.315 0.63
70* 6 4.5 9 0.315 0.63
80 5 3.75 7.5 0.3 0.6
90* 4 3 6 0.27 0.54
100 4 3 6 0.3 0.6
120 3 2.25 4.50 0.270 0.540
* on demand

PART 5 - SAFETY PRECAUTIONS

  • Polystyrisol boards must not be exposed for a long time to direct solar radiation, as UV rays may cause surface deterioration.
  • They must not be installed nor exposed under a PVC foil or on places with temperatures above 70°C.
  • When installing during cold weather provide the necessary expansion joints; e.g. at 0°C: 4 or 8 mm, depending on the length of the board.

Greenhills Industrial Estate, Walkinstown, Dublin 12
Tel: 01 4602652 - Fax: 01 4564229