
Introduction
What are structural floorboards?
| Joist centres | |||
|---|---|---|---|
| Board Type | 400mm | 450mm | 600mm |
| Softwood | 16mm | 16mm | 19mm |
| Particle board (chipboard) | 18mm | 18mm | 22mm |
| Oriented strand board (OSB) | 15mm | 15mm | 18mm/19mm |
| Plywood | 15mm | 15mm | 18mm/19mm |
What are the warranty provider's concerns?
Warranty stance
What developers should action after reading this article
Developers should ensure that all materials, products and building systems are appropriately tested and approved for their intended purpose.
As part of any guidance issued for their materials, manufacturers will state how their structural floor boards should be stored, installed and protected correctly in a manner that will not cause damage or deterioration of the product.
Where the developer has determined that the structural floor boards do not require protection during the build process, the warranty surveyor may require evidence of a third party product approval certificate from a UKAS accredited organisation which confirms the weather resistance performance and the period of time the boards are to be left exposed on site.
Any boards that are left exposed, either without protection or beyond the period stated in the third party product approval certificate for boards that do not require protection, will need to be replaced.
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Disclaimer
This technical document has been prepared by Premier Guarantee exclusively for the benefit of our registered customers. Its sole purpose is to provide guidance on the utilisation and interpretation of technical requirements pertinent to the warranty cover offered by Premier Guarantee.
Please note that this document is not intended for circulation or use beyond the aforementioned purpose. The information presented herein is for general guidance only and does not constitute professional advice. Registered customers and any other party accessing this document are advised not to rely solely on the information contained within.
Nothing in this document is intended to establish, nor should it be construed as creating, any contractual or legal obligations. In the event that any third party chooses to rely on the information provided, they do so entirely at their own risk. Premier Guarantee explicitly disclaims any duty of care or liability that may arise from the use of or reliance on this document by any third party, howsoever arising.
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