25mm Blue Athermic Polycarbonate Sheet 1050 x 2.0m

New Page 1

Why Athermic Sheets
We are now experiencing some of the warmest summers on record which are expected to continue and increase in the future. A new technologically advanced - Polycarbonate sheet to reduce excessive heat build up in conservatories by up to 50% and delay the time for achieving the maximum temperature.

Reduces Solar Transmission And Heat Build UP
The revolutionary ‘ATHERMIC HEAT SHIELD is a special reflective finish which is co-extruded into the upper surface of multi wall polycarbonate sheets. To further reduce internal glare, the underside is Opal finish and also gives a bright internal appearance. Conservatories, especially those with clear roofs experience an excessive heat build up and are limited to installing roof vents and/or blinds - options which can potentially exceed a customer’s budget and in many instances detract from the beauty of the conservatory.

ATHERMIC HEAT SHIELD has been independently tested by TNO Centre, Netherlands and comparisons made with standard 16mm triple wall polycarbonate sheets. These independent tests confirm that by utilising ATHERMIC HEAT SHIELD the total heat/solar energy transmission penetrating through the sheet can be significantly reduced.

Sheet	Long Life Transparent	Athermic Heat shield

10mm Twin Wall	9.2%	31.0%
16mm Triple Wall	14.6%	37.0%
25mm Five Wall	13.1%	33.8%
32mm 'M' Structure	9.2%	29.2%

Weather Resistance

ATHERMIC HEAT SHIELD has a UV absorber co-extruded onto the outer surface of the sheet. This forms a barrier against UV radiation, and ensures exceptional resistance to ageing without affecting the sheet’s mechanical properties or impact strength.

Polycarbonate Products

ATHERMIC HEAT SHIELD Self supporting and timber supported bars are available for the heat shield sheets in 25mm

Impact Resistance

Although light in weight all polycarbonate sheet is approx 200 times stronger than glass and virtually unbreakable when subjected to heavy storms, hailstones or falls of ice and snow.

Fire Performance
ATHERMIC HEAT SHIELD is classed as self-extinguishing, does not emit poisonous toxic gasses and complies with most European standards, including a Class 1 fire rating to BS476 part 7 and BS476 part 6 and can be recommended for use as a Class ‘O’ building material.

Athermic Polycarbonate Technical Properties

Sheet Thickness	16mm	25mm	40mm
Structure	5 Wall	5 Wall	X Wall
Approx. Wg. kg/sqm	2.8	3.4	4.0
K Value w/m k	1.9	1.6	1.4
Light Transmission	30%	25%	22%

Master Plastics SW Ltd