The free diy home improvement guide with answers to your questions on a wide range of do it yourself projects.


How To Protect Your Deck From The Weather

A deck can be your pride and joy – but the natural elements can put a dampener (excuse the pun) on things. However, this doesn’t mean you need to keep your decking covered up all the time; here’s what to do to protect your deck against rain, sun, mould and temperature changes:

Against rain

There’s no doubt about it that rain is a deck’s worst enemy. Excess rainfall without a sealant will seep into weak spots and opening points such as split points, knots, holes and cracks. Whilst certain woods such as Redwood and Cedar and pre-treated wood are known for their resistance to rotting, all types of wood eventually suffer from water damage so sealing your deck plays an important part in your decking maintenance.

When do you do it? You don’t need to run out and seal your deck every time the weather forecast predicts a heavy downpour – an easy water test will tell you if the decking needs sealing. Drop a glass of water over your deck, if it beads on the surface your wood is healthy but if it soaks in you’ll need to put a sealer on it.

Against the sun

Whilst many of us enjoy the warm weather during summer, our decks don’t always agree. Too much sun can dry wood out, breaking down the wood structure and leaving the wood open to further damage. A coat of Ronseal decking stain will revive your deck to life. You can also use decking stain to protect outdoor wooden furniture.

How do you know if your decking has suffered from sun damage? The main indication is in the colour of the wood – it will often change in colour from a bright, shiny appearance to a dull, greyish colour.


Mould can be the bane of many homeowners’ for both indoors and outdoors – but where does it come from and how can you prevent it?

It is common knowledge that mould thrives in damp places so having a deck that receives direct sunlight will reduce this as UV rays kill mould spores. Regularly sweeping your deck will also remove these spores and make sure to apply decking stain on top of the (dry) deck in order to prevent it.

Word of warning: If you’re thinking about painting your deck, check that you’re using decking paint on a clean service as mould can sometimes spread. It is also wise to give the wood a coat of Ronseal teak oil as this will help replace the oils lost through weathering and help replenish the wood.

Against temperature changes

Seasons wreak havoc on decks as temperature changes can put a lot of stress on wood making the boards expand, contract, and shift.  How do you know if your decking has suffered from temporal changes? The most obvious sign will be the formation of the boards – have they shifted? Are some slightly higher than others? Have the nails popped up? Replace these nails with longer nails

Now you’re weather prepared, it’s time to enjoy the last of the sunshine!

Author: Ronseal