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THERMOWOOD® DECKING IS A RICH GOLDEN COLOUR SIMILAR TO THAT OF HARDWOOD WHICH IF LEFT UNTREATED WILL FADE TO A SILVERY GREY ONCE EXPOSED TO THE ELEMENTS.
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THERMOWOOD® DECKING IS HEAT TREATED TO CLASS THERMO-D AT TEMPERATURES OF 212°c MAKING IT SUITABLE FOR EXTERNAL USE.
THERE ARE THREE MAIN PHASES TO THE TREATMENT PROCESS:
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1. |
USING HEAT AND STEAM THE TEMPERATURE IN THE KILN IS RAISED TO 100°:c. THEREAFTER THE TEMPERATURE IS RAISED TO 130°c ALLOWING THE DRYING PROCESS TO TAKE PLACE AND THE MOISTURE CONTENT DECREASES TO ALMOST ZERO.
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2. |
ONCE ThE DRYING HAS TAKEN PLACE THE KILN TEMPERATURE IS RAISED TO 212°c AND THIS CONSTANT TEMPERATURE REMAINS FOR 2-3 HOURS DEPENDING ON THE END USE APPLICATION.
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3. |
FINALLY THE TEMPERATURE IS LOWERED WITH WATER SPRAY SYTEMS. WHEN 80-90°c IS REACHED RE-MOISTURISING TAKES PLACE ALLOWING THE WOOD MOISTURE CONTENT TO RISE TO A USEABLE LEVEL OF 4-7%.
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- GENERAL MAINTENANCE INCLUDING REGULAR CLEANING WITH A MILD DETERGENT WILL EXTEND THE LIFE OF THERMOWOOD® DECKING.
- TO MAINTAIN THE RICH COLOUR, TREAT THE THERMOWOOD® ANNUALLY WITh A DECK OIL OR STANDARD PRESERVATIVE DECK TREATMENT.
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- THERMOWOOD DECK BOARDS CAN BE FIXED WITH STANDARD DECK SCREWS OR CLIPS
- IF CUT, SAWN ENDS SHOULD BE RE-TREATED WITH A SUITABLE TIMBER PRESERVATIVE
- SUPPORTS SHOULD BE SET AT A MAXIMUM OF 400mm CENTRES. A SLIGHT FALL SHOULD BE INCORPORATED INTO THE DESIGN TO HELP IMPROVE DRAINAGE
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Nominal
(mm) |
Finished
Dimensions (mm) |
Length
(m) |
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32 x 125 |
26 x 118 |
3/3.3/3.6/3.9/4.2/4.5/4.8/5.1/5.7 |
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USING 125mm WIDTH NOMINAL SIZE DECK BOARDS
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ACCORDING TO EN13501 (SBI TEST) THERMOWOOD® IS IN A REACTION TO FIRE CLASS D. IT IS POSSIBLE TO TREAT FURTHER WITH FIRE PROTECTIVE TREATMENTS IN ORDER TO ACHIEVE FIRE CLASS RATING 1 SPREAD OF FLAME.
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- THE PRODUCT HAS A MOISTURE CONTENT OF 5-7% (50%RH) WHEN PACKED IN PRODUCTION.
- THIS LEVEL WILL CHANGE ACCORDING TO ATMOSPHERIC CONDITIONS.
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