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External wood boards, will be painted
- Does the wood have to be pressure treated, or are modern paint primers and top coats good enough to give say 15 to 20 years of life in an exposed location l
And, if sealer and paint is enough, any recommendations?
I have just refurbished my 50 year old wood soffits. I patched them up with wood filler and primed, glossed. It took 6 coats in total but the result is pretty amazing. It is time consuming but I hope to get another 50 years out of them. It's all in the prep, oil based gloss shows every imperfection.
My experience of modern primers and paint in an exposed location is the exact opposite of being good enough for 15 years. I find they crack, flake and fail within a couple of years at most, even when the wood is fully stripped back to take the primer.
I took the advice of @big_n_daft on here and tried linseed oil paints. So far it has been far superior and is far nicer to work with.
Interesting question as I have this on my to do list in a few years
Not on soffits, but I've used 3 coats of sandolin superdec over 2 coats of sika preserver on the cabin in the garden. I was told thats what they use to protect beach huts. After 5 years it still looks freshly painted.
Have you discounted coloured composite? They claim it doesn't fade. I'm not sure, and it would be an expensive mistake if it did....
Hello,
Avoid treated timber if buying new, it can be very difficult to cover over pressure treated timber as the preservative will bleed through. Most planned timber is untreated.
When using new planned timber use a micro porous paint such as Bedec, or Sikens, this allows the timber to breathe, soaks in very well. New water based paints are so much better than they used to be. It’s always a good idea to get first grade timber if you can afford it, go to a timber merchant if at all possible.We have been using micro porous for years now with out any comebacks.
Hope this helps. Ed.
Thanks
Thought tanalith wasn't what I was after if it was to be painted.
Brewers stock the colour im after so thats handy as there's 3 locally
Timber wise, its on the garage so quality is not at the top of the list. So long as its straight, not too knotty it will be fine
Can recommend sikkens rubbol satura plus for exterior woodwork. King of paints
https://osmouk.com/product/country-shades/
This stuff is pretty good , guaranteed not to crack flake peel or blister. I painted my 160 year old barge boards which were pretty ropey 10 years ago and the paint is holding up extremely well.
No undercoat needed just two coats of this paint so you save on time and labour. When it comes to repaint all that's needed is a lite nib off and a coat of the paint. As we all know labour is the real cost in painting.
related probably noddy question. I presume you should paint all sides of the new timber before fixing? Not just the sides exposed to the elements?
for existing timbers (I have mock tudor stuff as well). I presume you just recoat whats on show - not remove and paint both sides
Dunno.
Brewers stock Bedoc multi surface all in one. So that's what i have gone with. Claret, as it is nearest to the existing soffit boards.
Done a sizing coat already, with approx 1/3 water. Goes on ok, gets absorbed quickly and even in the shade dried in an hour. Will give both sides another coat tomorrow early, then wait till its really hot and get up on the garage roof and rip off the old rotten boards and screw on the new ones.
If any paint left over i will do the faces and cuts with a 3rd coat
Yeah, try and get two coats on the back and one on the front prior to fitting. Sadolin Superdec is great.