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Anyone here built a pergola with a tin or clear corrugated roof?

Posted on 7/11/16 at 6:07 pm
Posted by Coon
La 56 Southbound
Member since Feb 2005
18492 posts
Posted on 7/11/16 at 6:07 pm
Mother in law wants me to build a pergola over their patio. It's about 12'x15'. Since this is south Louisiana, she needs something to protect from the scorching sun/daily summer rain. I was thinking about some sort of pergola topped with either tin or corrugated clear or opaque plastic/fiberglass. Want to make it look good, though, not just a thrown together tin roof. Anyone have experience with this?

Also, what size beam do i need to make to span the 15' runs? Double 2x_? Flitch beam?
Posted by Hammertime
Will trade dowsing rod for titties
Member since Jan 2012
43030 posts
Posted on 7/11/16 at 6:24 pm to
My parents have a patio built off of their house that has some type of lightly tinted flat plastic panels on it. They have to clean it twice a year because of mold and pollen buildup, but just squirt Jomax/bleach on it. The tint helps in the summer, and they have a few fans under there that help more. Plus, you still get natural sunlight.

Overall, I'd say the clear panels are the way to go, but get something flat and tinted. Leaves and mold will build up quickly in the corrugated valleys and look like crap. You can also get shades that roll down for the sides...either bamboo or this perforated plastic shite
Posted by WPBTiger
Parts Unknown
Member since Nov 2011
30991 posts
Posted on 7/11/16 at 6:26 pm to
I built a patio out of the corrugated plastic. Did not last. Replaced plastic with metal. I suggest you use metal.
Posted by Chad504boy
4 posts
Member since Feb 2005
166246 posts
Posted on 7/11/16 at 6:55 pm to
Standing seam metal roof
Posted by junkfunky
Member since Jan 2011
33891 posts
Posted on 7/11/16 at 7:04 pm to
If you go with plastic someone will need to be getting on top once in a while to clean, which means your 2x will have to carry a higher live load. A 12 can make the span depending on your spacing (which you need to keep in mind as far as panel attachment points/laps are concerned). If you go metal you can reduce the live load to about 8 psf for debris and in turn either space farther apart or go with shallower members.
Posted by stickly
Asheville, NC
Member since Nov 2012
2338 posts
Posted on 7/11/16 at 7:14 pm to
Nicer greenhouses use double layer polycarbonate. Nice stuff.

LINK
Posted by achenator
Member since Oct 2014
2945 posts
Posted on 7/11/16 at 7:24 pm to
OT ballers would say copper roof baw
Posted by Jack Daniel
In the bottle
Member since Feb 2013
25450 posts
Posted on 7/11/16 at 7:27 pm to
If it has roofing material, is it still considered a pergola?
Posted by Coon
La 56 Southbound
Member since Feb 2005
18492 posts
Posted on 7/11/16 at 7:34 pm to
Right. So a pergola/patio hybrid. I'll sketch something out and throw it to you baws to chew on.
Posted by Jj283
Houma
Member since May 2015
798 posts
Posted on 7/11/16 at 8:17 pm to
Is the goal to keep it dry as well? What about some of the fabric they use to shade playgrounds and what not. Basically a giant solar screen.
Posted by Capital Cajun
Over Yonder
Member since Aug 2007
5525 posts
Posted on 7/11/16 at 8:39 pm to
Mine is framed 2x8 joist. One side is attached to the house the other side is attached to a 4x12 beam attached to 4x4 columns clad with prefab fiberglass columns. The top has 2x2 6" on center the length of the cover with corrugated plastic roofing on top of that.

I live in North Texas so the hail has put a few holes in the roofing. But I dont want to go to tin or metal because I like the opaque plastic letting light through.

Its a little dark for pics but I can get some tomorrow and post it you would like.
Posted by Coon
La 56 Southbound
Member since Feb 2005
18492 posts
Posted on 7/11/16 at 9:06 pm to
Please do
Posted by Capital Cajun
Over Yonder
Member since Aug 2007
5525 posts
Posted on 7/11/16 at 9:13 pm to
Here are a couple I had in photobucket.



Posted by Coon
La 56 Southbound
Member since Feb 2005
18492 posts
Posted on 7/11/16 at 10:25 pm to
Well, that's fricking NICE!

Few q's:
What are the sizes of the members? Beams (double 2x_), joists (2x_ and spacing), slats (size and spacing), and how are the clear panels attached?

Again, damn nice!
Posted by Capital Cajun
Over Yonder
Member since Aug 2007
5525 posts
Posted on 7/11/16 at 10:39 pm to
quote:

Well, that's fricking NICE!

Few q's:
What are the sizes of the members? Beams (double 2x_), joists (2x_ and spacing), slats (size and spacing), and how are the clear panels attached?

Again, damn nice!


Overall dimension is 16' x 19'.

The joist are 2x8 at 2'-6" oc. The rim at the house is 2x8 bolted into the brick.

Columns are 4x4 with prefab fiberglass column wraps.

Beams on the outside are 4x12.

Slats are 2"x2" at 6" OC

Corrugated plastic is screwed down with neoprene wood screws into the slats.


I need to replace the roof panels and I think I'm going with the Suntuf product from Home Depot.

Suntuf
Posted by Coon
La 56 Southbound
Member since Feb 2005
18492 posts
Posted on 7/11/16 at 11:06 pm to
I hope you don't mind but I'm going to steal the shite out of that design. : )

I've read several good reviews on suntuf and considering it's availabe at HD, I think we'll go with that. I think I'm going to build it win just the slats to avoid any permit concerns then stain it and install some sort of suntuf panel.

My father in law is going on vacation in August (month long road trip) and my mother in law wants to completely makeover their back yard (something he'd never agree to). I love challenges like this. I've got a $2500 budget and I'm going to hammer it! Will post before and after pics.
This post was edited on 7/11/16 at 11:43 pm
Posted by CHEDBALLZ
South Central LA
Member since Dec 2009
21921 posts
Posted on 7/12/16 at 7:56 am to
Stain everything before you put it up, you'll thank me later.

Is it going to be free standing or attached to MILs house?

Built over a concrete slab or deck?

What are you planning to use for columns?

Posted by Coon
La 56 Southbound
Member since Feb 2005
18492 posts
Posted on 7/12/16 at 8:18 am to
I'm going to prefab everything at my house and just assemble it there. I want to buy the wood this week so it can dry a few weeks before we put it up so we can stain it beforehand.

Over concrete slab, plan on pressure washing and staining concrete and possibly adding pavers around the edging.

6x6 treated for columns

It's a 40 year old ranch so it's not going to look like those pics above but I'm going to do my best. Talk about a blank slate:

Posted by lsuson
Metairie
Member since Oct 2013
12166 posts
Posted on 7/12/16 at 9:40 am to
I built a pergola about a month ago with similar dimensions as you. What I did was drill 5" deep holes in the concrete with a 5/8 masonry bit and put bolts in it. You have to apply a resin in the hole as well to make sure the bolts hold. Instead of using anchor bolts I bought one 1/2" threaded and cut to size. After it hardens attach your bracket to the base and connect you 6x6. I used 2 carriage bolts to secure the 6x6. Up top I used two more carriage bolts on each 2x6 to connect my corners. I ran 5 more 2x6 accross it as my studs. I cut notches about 2" deep to secure them in the original 2x6. It took me two days to build by myself.
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