Can I fix my patio deck?
November 9, 2010 9:50 PM Subscribe
DIY Advice: paving over wooden decking, can it be done?
posted by wilful to home & garden (16 answers total)
The house I'm about to take possession of has a patio in two parts, being a 3m x 8m concrete and brick structure, and a 2m x 5m wooden deck, with (I think) concrete stumps.
I have to get rid of the deck, it's ugly and it's a fire risk, which is important. No idea what timber is used, lets presume it's durable.
In an ideal world I would replace it with a concrete and brick structure similar to what's already there, and I would then put pavers/outdoor tiles over the lot to integrate it.
However, that would be time consuming and costly (particularly since it's on quite a slope at that point), so I wouldn't be able to get round to it for several years. I wonder whether I could do something a bit more dodgy, but still successful: put down two layers of cement sheeting/tile underlay straight on top of the decking, then pave over it, and pave the concrete section at the same time to make it look integrated.
Two issues I can foresee: timber rotting due to lack of ventilation, and shifting/cracking of the pavers on the deck as it settled under the new weight.
Apart from an expansion joint where it met the concrete patio, could I do anything about cracking? Reinforce the deck with crossmembers underneath? Could I waterproof treat the timbers (bituminous substance) or do something else to avoid wood rot?
Any other issues, and is my dodgy plan feasible?