Page 1
Page 1
Started By
Message

Treating patio building, kiln dried pine

Posted on 2/3/25 at 5:26 am
Posted by Nonc Chu Rouge
Lafayette, LA
Member since Feb 2020
150 posts
Posted on 2/3/25 at 5:26 am
We recently built a vaulted pavilion in our back yard using kiln dried pine rough cut beams. What would be the best way to treat the lumber? We’re thinking of spraying it with clear sealant. Would this suffice?
Posted by 9rocket
Member since Sep 2020
1619 posts
Posted on 2/3/25 at 6:25 am to
Guys around here use used motor oil or a mix of motor oil and diesel. This is on rough-cut pine. They just smear it on with a mop. I really have no idea how long it makes it last, though.
Posted by 2 Jugs
Saint Amant
Member since Feb 2018
2287 posts
Posted on 2/3/25 at 7:50 am to

Need more info.

Are the beams exposed? What do you mean by "treated"? What appearance do you want after they are "treated"?
Posted by Potchafa
Avoyelles
Member since Jul 2016
4142 posts
Posted on 2/3/25 at 7:57 am to
My Patio

Just stain it like we did.
Posted by Nonc Chu Rouge
Lafayette, LA
Member since Feb 2020
150 posts
Posted on 2/3/25 at 11:57 am to
It’s an exposed beam metal roof outdoor pavilion on a slab. 10x10 post. It has roof but everything is exposed to bugs and humidity and wind blown rain. All kiln dried pine. I’m wondering what I should treat it with to help with moisture and bugs. Stain, water sealant, I’ve seen some people burning it with some Japanese technique, etc..,
Posted by Nonc Chu Rouge
Lafayette, LA
Member since Feb 2020
150 posts
Posted on 2/3/25 at 12:03 pm to
Here’s a picture for reference. Would rather not stain it. It would be easier if I could spray it on and stain would make a mess on concrete and metal roof. Would clear sealer work?
Posted by 2 Jugs
Saint Amant
Member since Feb 2018
2287 posts
Posted on 2/3/25 at 6:40 pm to
quote:

Would rather not stain it



Stain does nothing to protect wood from water penetration.

You really should have thought about this before erecting the structure.

I would use a water-based sealer and brush it on. General Finishes makes a good exterior finish or Thompson Waterseal. Also heard of using transmission fluid to seal rough cut lumber. You will probably have to reapply every few years to keep it looking good.

Make sure to take the 45° angle braces of and hit that end grain really good. The ends of the ridge beam are gonna need attention.

If you have some leftover cutoffs, use them for testing which product looks the best for your liking.
Posted by 9rocket
Member since Sep 2020
1619 posts
Posted on 2/3/25 at 8:13 pm to
We used to use transmission fluid back in the eighties. Gave the building a beautiful red tint. Problem was it faded rather quickly and no
Ended to be reapplied every couple/three years.
Posted by Tigerpaw123
Louisiana
Member since Mar 2007
17716 posts
Posted on 2/3/25 at 8:40 pm to
quote:

using kiln dried pine


Why?
Posted by AyyyBaw
Member since Jan 2020
1201 posts
Posted on 2/4/25 at 5:22 am to
You could use a clear deck oil. Usually it is rated for water on horizontal surfaces.
Posted by gumbo2176
Member since May 2018
19180 posts
Posted on 2/4/25 at 8:10 am to
quote:

Why?



That's my question too. With lumber pre-treated for outdoor use and rated to resist rot and bug infestation, why use regular pine---------------at least he used the metal brackets at the base of the posts to help keep the bottom of them slightly off the ground. Even then, he should have painted or treated the bases of those posts with paint, varnish, old motor oil so they can't absorb moisture through the end grain.
first pageprev pagePage 1 of 1Next pagelast page
refresh

Back to top
logoFollow TigerDroppings for LSU Football News
Follow us on X, Facebook and Instagram to get the latest updates on LSU Football and Recruiting.

FacebookXInstagram