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CruisinGA
09-07-2013, 08:48 PM
Long story short, my fiancÚ and I are under contract on our first house.
I will have to build the detached garage a little down the road, so in the meantime I am planning to install a DIY under deck roof so I have a dry place for the stand up jet skis and dirtbikes.

Has anyone done a DIY Underdeck roof? Specific products to use or not use? Word of hard-earned wisdom?

maxpower220
09-07-2013, 09:11 PM
Perhaps you can describe what an under deck roof is. I've built sheds, carports, and turned carports into garages, but I'm not sure what you want built.

I even did a yahoo search.

Tristarboarder
09-07-2013, 09:44 PM
Try Google. :D

stuie
09-08-2013, 07:24 AM
Instead of trying to build an underdeck roof, why not just re-deck with this stuff
http://www.fsihp.com/products/decking/lockdry-waterproof-decking
I'm thinking of using it for the cottage I am building.

Stuart

Ben
09-08-2013, 08:39 AM
I used metal roofing upside down. Hardest part was the treated 2x2 lattice I made to attach it to. I had to put up 2 levels of it so the ones the roof bolted to would run "in line" with the panels.

Very economical + matches the aluminum trim on the house.

I still need to skin the support beam. I had gutters installed as well, as I have it pitching to the beam from both sides. Works great.

Paid itself off the 1st time I sat underneath with kid and a cold one during the rain....

Pm for pics or if you want to chat. I am not set up to post from my phone anymore apparently.

Ryan
09-09-2013, 12:13 AM
Long story short, my fiancÚ and I are under contract on our first house.
I will have to build the detached garage a little down the road, so in the meantime I am planning to install a DIY under deck roof so I have a dry place for the stand up jet skis and dirtbikes.

Has anyone done a DIY Underdeck roof? Specific products to use or not use? Word of hard-earned wisdom?

I did this with my current house. Couldn't have bought it otherwise since we were dropping from 3 car garages in the last 2 houses. I built a slanted support stucture to ensure water flowed away from the house, attached & overlapped corrugated-galvanized roofing with self-tapping deck screws and attached a rain gutter at the end to reduce water impact. I built barn doors for easy access for the lawn stuff, extra bikes, roof cargo box, and other stuff and will try to take some pics for ya if you're interested. It stays bone dry and already had a gravel floor.

jkcTN
09-09-2013, 01:11 AM
I'm looking to build something similar. Please share pics.

Sent from my Z10 using Tapatalk 2

CruisinGA
09-09-2013, 07:54 AM
Ben - You have a PM

Ryan - Please post pics!

I have read some mixed reviews on using plastic materials, so I was leaning towards metal. Would really like to see what you guys did.

Part of the battle is low ceiling height at the end close to the house, so I have to try to keep the roof as close to the underside of the deck as possible.

JohnE
09-09-2013, 09:23 AM
There is a product made that goes under the decking. That allows you to put a nice ceiling on the underside, add lighting, etc. I don't know what the product was named but a quick search should pull it up.

Ryan
09-09-2013, 11:28 AM
There is a product made that goes under the decking. That allows you to put a nice ceiling on the underside, add lighting, etc. I don't know what the product was named but a quick search should pull it up.

I looked at one of those. Oasis something or other. Spendy and more fancy than I needed since I just wanted it for storage.

I'll try to get some pics this evening.

Ben
09-09-2013, 10:53 PM
I also heard the plastic stuff was pricey. Plus, I live where I need to consider I may have ice packing in on the "roof", if water drips down from the deck. Plus2, I wanted something to do a lot of work once and be done.

Here are pics. As I mentioned, I wanted the boards that the metal roof panels attached to oriented in the direction water flows. So, I used 2x4's, 2x2's etc between the deck joists and hanging down to set up the pitch. You can see each "row" hung further down as it got away from the house.

Next, I screwed long 2x2's to these, resulting in 2x2's the same direction as the joists with proper spacing to screw the roof panels to. You may be able to just screw a 2x4 to the side of a joist at the proper pitch, but I couldn't get the spacing right for screwing the bolts on, and I wanted them spaced equally for looks.

Because the deck cantilevers out over the steel beam (I added that too - went from 6 deck posts to two...), I had to pitch to the beam from both sides. Then had gutters added.

Overall, happy with the job, and the cost was <$500 I think. Deck is about 10x24 or so.

atthelake
09-10-2013, 01:26 AM
I think I'm gonna do something similar. I was thinking about using a solid soffet instead of roofing tin. I thought this might cut down on the overall weight. Deck is 16x36.

JohnE
09-10-2013, 07:29 AM
That yellow wire shouldn't be used outdoors.

Ironhorse
09-10-2013, 08:15 AM
Great idea! I have been cursing myself for not using duradeck so I can sit underneath. Now I have a new project.

homer12
09-10-2013, 08:49 AM
That yellow wire shouldn't be used outdoors.


That's what I was thinking. :D Not outdoor approved.

Ryan
09-10-2013, 09:21 PM
Here are a few pictures. The pic from the inside looking out shows the only spot that has a slow drip due to the curvature I made. That curve prevents me (6'4") from slicing my head on galvanized metal with a high point of about 6' at the gutter and a low point of 5' near the house. The metal does reflect light pretty well, and doesn't create the creepy cave effect that I thought would spook my kids. They're all comfortable playing in there.

The best advise I can give:

Don't try using a sawsall, get a metal blade for your circular saw
Don't do this in February like I did when it was sunny but 18 degrees. Leather gloves don't flex much when it's that cold.