Easy Overhangs

Submitted by Ana White on Wed, 04/25/2012 - 15:31

Have you ever wondered how overhangs on roofs are done?

It turns out they are much easier to do than one might think.

<img src="https://lh6.googleusercontent.com/-eK0N3zz9_gw/T5h28zQKgUI/AAAAAAAAKJ8/…; style="width: 470px; " alt="" /><p></p><p>But what looks so simple and easy is really the results of lots of planning and prep. &nbsp;</p><p></p><p><img src="https://lh4.googleusercontent.com/-tCpG27B9tMw/T5h283fcEqI/AAAAAAAAKKA/…; style="width: 470px; " alt="" /></p><p></p><p>And the overhangs tie in securely, well supported by the gable end truss, nailed to the common trusses.</p><p></p><p>You can see here, the plywood is to be nailed to the overhangs, which are perfectly square.</p><p></p><p><img src="https://lh5.googleusercontent.com/-WNIayKSVuEY/T5h3HIToxzI/AAAAAAAAKKc/…; style="width: 470px; " alt="" /></p><p>This overhang is going to hold some snow!</p><p></p><p><img src="https://lh4.googleusercontent.com/-5RC5k_EjI6k/T5h3HvaZgAI/AAAAAAAAKKk/…; style="height: 640px; " alt="" /></p><p></p><p>The next day, we nailed plywood to the gable end trusses to complete the gables. This is what the finished end will look like.</p><p></p><p>I want to devote an entire post to plywood because, well, it deserves its own post! &nbsp;It's a BIG projects!</p><p></p><p>Thanks for reading and keeping us inspired! &nbsp;We are so happy to be up working on the hill, and writing about it again!</p><p></p>

Step 1 Diagram
Step 1

Our <a href="http://ana-white.com/2012/04/momplex/longest-day&quot; target="_blank"> trusses are set, and the gable end trusses are different than the common trusses.</a> (Gable end trusses are the end trusses and common trusses are the middle trusses.)<p></p><p>Not only do the gable end trusses have vertical studs every 24" for later nailing plywood or siding too, but they are shorter in overall height.

</p><p></p><p>And it's not because our truss company short changed us.</p><p>Or was short on lumber.</p><p></p><p><img src="https://lh4.googleusercontent.com/-wtZ_dqwsDZk/T5lyEiXwwLI/AAAAAAAAKK4/…; style="width: 470px; " alt="" /></p><p></p><p>Because the overhangs actually sit ON TOP of the gable end trusses and are attached to the first common truss. &nbsp;This is done for support, but we like this method too because it's much easier.</p><p></p><p>Another cool thing .... anyone who has every built a huge project knows by the time you go up two stories, it is impossible to <span style="font-style: italic;">not </span>be off a tiny bit. &nbsp;In our case, we started with a perfectly square 44' x 44' footer, but at the top plates, the Momplex measures 44' 1/4" x 44 5/8", despite our best efforts to stay square. &nbsp;Much of this has to do with the heavy concrete pushing blocks outward, making walls grow a tiny bit.</p><p></p><p>Growing a tiny bit isn't a huge deal, but when you put plywood on, you don't want to be trimming sheets down or adding little pieces at the end to make up for a building not built for standard 4'x8' sheets of plywood. &nbsp;You want that roof to be square, with a truss every 24" exactly so your plywood pieces can meet centered on a truss.</p><p></p><p>BUT you don't want to set the gable end trusses in 1/4" or 5/8" to force the roof square because your siding will have an uneven drop in it from the exterior wall to the gable end ... making sense?</p><p></p><p>This is why this method of overhangs is so awesome. &nbsp;Because the gable end truss sits BELOW the overhangs, the gable end trusses are simply attached flush with the exterior wall. &nbsp;Then we build the overhangs exactly 24" wide, on top of the gable end truss. &nbsp;Because the overhangs sit on top, it doesn't matter where the gable truss is. &nbsp;The plywood never touches it. &nbsp;</p><p>And just like that, we forget that the Momplex is a tiny bit off.</p><p></p>

Step 2 Diagram
Step 2 Instructions

Before we started setting trusses and renting heavy equipment, we built the overhangs on the ground. It's easier to do these things not on a ladder, not reaching up overhead, without expensive equipment rentals adding up as you pound nails.

They are huge.

Step 3 Diagram
Step 3 Instructions

Since we rented expensive heavy equipment for the roof framing, we asked the very talented Mike and John to help us out. They normally work with my brother, and we are very thankful for their help this week. Very thankful.

The overhangs are carried carefully over into position.

Step 4 Diagram
Step 4 Instructions

And then Papa Tim and Mike rig the overhangs up with straps. We rented the lift for bringing plywood up two stories, and will use it for lifting the overhangs. At $250 a day, it's definitely worth not having to carry 80 sheets of 5/8" plywood up two stories, through trusses, and then on top of a framed roof.

I can barely pick a sheet up two feet!

And that's just my end.

Step 5 Diagram
Step 5 Instructions

The rigging is just looped over the forks.

Step 6 Diagram
Step 6 Instructions

And up she goes.

Step 7 Diagram
Step 7 Instructions

You can see we have already done the first side.

Step 8 Diagram
Step 8 Instructions

Uncle Bill is operating the lift.

Step 9 Diagram
Step 9 Instructions

The outside end is cut "wild" or with extra length so we can tie it into the front fascia board later. Then it will be trimmed just perfect.

Step 10 Diagram
Step 10 Instructions

I kept thinking as I watched the overhang go up how long it would have taken to build overhangs the other way. The notch out each board, notch out the end truss, nail in place, all while squeezed between trusses two and a half stories up with a nail gun cord tangled in trusses.

This is how you want to do overhangs.

Step 11 Diagram
Step 11

If you were up just a story, you could pull the overhangs up by hand for sure. Or if you had a smaller roof. Remember, this is two homes in one. We have the lift on site for bringing plywood up to the roof, but it sure is nice for the overhangs.

Step 12 Diagram
Step 12

Once the overhang is at the right height

Step 13 Diagram
Step 13

Uncle Bill just brings it in and John grabs it. This should be harder.

Step 14 Diagram
Step 14

But it wasn't. It's lowered into place.

Step 15 Diagram
Step 15

The overhang is maneuvered into position. After setting all those trusses, this is easy stuff.

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