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When using blueboard as an external cladding check your installer is fixing the product to the harditex manual
Main points for a 7 year product and application warranty., (and for a perfect finish)

·Vertical control joints must be located in wall runs over 5.4m (6mm gap),  also for internal corners
·Apply bondbreaker tape(before installation)
·When fixing with a nail gun flush the nail by hand, to check for loose boards and prevent popping nail heads later
·The sheets are butted hard together with no gaps being left between sheets.
·The texture coat colour applied to both the HardiTex base sheets and PVC accessories, must have a Light Reflective Valve (LRV) greater than 40%
·Use full sheets

What is Harditex Blueboard?
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