We have received a lot of great questions and interest as to how we designed and built this pergola (see photos). This pergola design "gives the appearance" that it is "connected" to the roof structure. Here's an explanation about how this pergola was made and hopefully inspire you to create a similar structure for your home.
The initial concept came from interior designer, Anthony Catalfano, for whom this home was built. He wanted to make the dining room space (inside behind the patio doors) and ceiling beams to continue out to the patio. The design intent and architectural theme of the house was to make a distinct connection to and complement the surrounding landscape and picturesque views of the neighboring
With the client's direction and vision in mind, Woodmeister went to work to try and come up with a way to make it look like the pergola was extending out from the dining room. We also needed to figure out how to make the pergola connect to the roof without creating potential complex flashing details / water infiltration issues inherent with typical exterior to interior wood framing connections. "Cantilevered" framed decks structures are a great example where water infiltration is often a problem.
To avoid water infiltration, the pergola beams were designed and detailed to be "set off" the roof by approximately ½" from the roof shingles with stainless steel "T" shaped roof clips. This construction detail gives the appearance that the pergola beams are built-into and continuing into the "beamed" ceiling of the adjacent dining room inside the home, and, from the inside of the dining room, it appears that the beams continue to the outside pergola patio.
The bottom of the "T" clip is fastened to the roof and flashed (on top of the ice and water shield substrate). This ½" offset-clip detail allows the rainwater to runoff between the top of the roof shingles and bottom of the pergola beam.
You can find these roof clips with most "roof snow guard" manufacturers. The stainless steel clip is mortised into the center of the beam end, bolted and plugged then finished and painted to hide the bolt connection holes on the side. The exposed ends of the cut beams (cut to be parallel with the roof slope) also needed to be properly coated, primed and sealed for water exposure.
To View a PDF of this Pergola Construction Detail [CLICK HERE]
We built this pergola with cedar to match the material of all the other trim on the exterior. However, it would be just as favorable to have the beams made with a composite material for less maintenance - especially for coastal homes - that are often exposed to extreme wet weather conditions.
I have included a detail sketch and a couple of photos as a visual reference.
Good luck on your pergola projects!