Hi,
I recently installed a hardwood deck using Kapur. This material had a fantastic reddish brown appearance, which really set off my design as a compact contemporary garden. However on contact with water the decking began to leak an oily black discharge at an alarming rate- within 1 hour! Hopefully the picture is attached above, this was taken the next day after my decision to uplift the decking and remove from site the following day. My reason for removing this deck was due to staining of all newly laid surfaces that included mint sandstone, granite setts, rendered walls, block paving and the clients driveway where the cutting took place. These stains have been removed with diluted brick acid and elbow grease.
This has now raised some serious questions:
1. Was I correct in removing this product to prevent further staining.
2. Is this common for hardwood decking?
3. Or is this material not fit for purpose?
Further more the material has discoloured from red to yellow tone after 1 week of being exposed to the outside elements. The supplier has responded to say that hardwood is a natural product, therefore leaching of tannin's and oils is to be expected therefore this material is not faulty- Does this sound right to you?
Any help or advice, on whether I pay for this material would be greatly appreciated.
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Replies
its a natural material containing a lot of natural oils and extremely common, similar to what oak will do. Its one of the reasons its selected to do the job it does as it prevents the rot and decay on the wood. If you don't want it to stain then you need to seal it with an oil, but you will still get some leaching from it, unless you set it to one side and wait for it to happen. Its not the suppliers fault.
we had this where we laid a travertine patio and a carpenter built an oak pergola above it and forgot to seal it. It can be removed with an application of mild bleach