View ChannelsFeatured: Finance
View ShowroomsFeatured: Radiantec - Radiant Solar Heating

BobVila.com

Home

Adding a Third Floor Dormer

Bob meets Ryley who is adding a third floor dormer to an existing home. Ryley will be recreating a shed dormer with a hip dormer above to the third floor. They have pre-fabricated some of the work before they started which is a great idea to speed things up. The new dormer looks basically like a pyramid.

Get Adobe Flash Player to see this content.

Chapters from this episode

Tour of a Georgia Pacific Lumber Mill Now Playing

Tour of a Georgia Pacific Lumber Mill

Pumping Concrete to Make a Floor Now Playing

Pumping Concrete to Make a Floor

Adding a Third Floor Dormer Now Playing

Adding a Third Floor Dormer

Clip Transcript For:

Adding a Third Floor Dormer

computer-generated transcript - may not be 100% accurate

" As I was saying earlier in the show our objective is to creates. Another dormer at this third floor level just like what you see behind me over here. This is an unusual -- a -- mile below there affiliate their regular. Dormer. On the second floor. With a very nice kind of sprung shed roof to us as you go up level they added it'll hit the roof dormer with. The windows and it's a charming DHL and we're going to re create the exact same -- years in fact. Ryley we could let the fellows from port built get the rest of this opening. Stocks headed off so we get started framing this one over here yes thing to do they cite them for -- if the system. I which precut and pre fabricated some of the pieces for this dormer -- there. And these triangles -- what we call the cheeks you ready but that went up you know I got our marks exactly where it goes. Those few little -- Quote. And Margaret OK. And so we'll just shoot it into place. And I don't know then on this side. -- United way."

" OK and -- reading now. -- Diego."

" All right this -- Those space. Camera -- excursion up the slowness to -- there. And these are called the soul plane took off right off like new -- right on the sheeting groove sheathing. -- can come over this -- a little bit okay. Has that now have a credit that's. And again and noon -- OK so this is the red red and I'll hold in place for it. It was catalyst yeah. What. And then there's this little -- of the one for the yeah. And that's the -- it goes right up against that the common rafter that. And didn't -- us exactly word. Of that as you. Nice I hope. And -- In the right that I thought that this -- this witnesses. -- All right these are the hip fractures. It's. In Tibet. Very nice to get those out at the bottom tank. All right now these. Are technically rafters what kind of rafters rather going from the hip to the plate to Jack -- Jack. All right well the geometry was in place it's basically a pyramid from this side. That's nicely cut together you ready for some sheathing -- sure am. And this fall -- at the top and give it a four foot sheet of plywood. As far as ago. Okay suicides and this completes the parent. -- Beautiful."

[-]

More Videos »Related Videos

Building a Pitched Roof from the Ridge Beam and Rafters to the Shake Shingling

Bob opens the segment with a look at the Certainteed Landmark shingles selected for this project. Fabricated with a dragon's tooth angle, the Landmark shingles give the impression of a handsplit shake roof. Next Bob flashes back to the construction of the roof. Starting with the raising of the laminated veneer lumber (LVL) ridge beam onto the gable ends, Bob walks the viewer through the various steps in the process - laying out 20 foot 2 by 10s for the rafters, marking a ridge cut at the top of each rafter and a crow's foot at the bottom, positioning and securing the rafters to both sides of the ridge starting at the center, applying the CDX plywood sheathing followed by an ice and water barrier as underlayment for the first course of shingles, nailing on the aluminum drip edge, and finally laying out and applying the first course of shingles. Once the first course is finished, felt paper is stapled to the rest of the sheathing as underlayment. After the roofers have finished shingling all the way to the top, they add ridge vents and soffit vents to prevent moisture from building up under the shingles.

Raising Gable Ends and Cutting Rafters for Wayland Second Floor Addition

Bob and Ryley start by raising an exterior wall on the second floor. Bob and Larry Landers discuss a stiff back support for a tall wall that will be both an interior and exterior wall on the same side depending on the height. They support the wall insuring it is plumb before starting on adjacent walls and rafters. Ryley explains the cutting of a nine twelve roof angle and how to use a framing square to get the angles for the rafters.

Cutting and Laying Roof Rafters for Vaulted Roof

Bob helps lay the rafters on the roof of the home. The rafters all follow the same cutting pattern so they can all be laid into place. After two of the guide rafters are in place, a ridge pole is put in. The ridge pole supports the upper end of the rafters and is made of laminated veneer lumber (LVL). After the ridge pole is in place, the rest of the rafters can be laid down. The rafters have a bird mouth cut. Once plywood is laid on the roof's exterior, hurricane clips will be used to secure the roof.

Installing the Rafters

The architect visits for an update and Bob and Ryley begin installing the Paralam rafters. Ryley discusses the construction and preparation of the high-pressure man-made rafters.