Framing Gable and Shed Dormers Canandaigua NY

Whenever adding any type of dormer in Canandaigua, it's essential to determine the roof load and design the load path transfer to the existing floor joists or roof rafters. Then you can ensure adequate bearing points, or add framing and install beams to carry the loads through the walls down to the foundation. It wouldn't be a bad idea to consult a structural engineer for guidance, especially on larger dormers.

Local Companies

House of Adjustments
(914) 835-7072
715 Mamaroneck Ave Ste 2
Mamaroneck, NY
Cuba Community Development Corp
(585) 968-3131
17 W Main St
Cuba, NY
Gino Romano General Contracting Co
(718) 381-4809
15 Dorcas Ave
Syosset, NY
Express Home Improvment Corp
(516) 679-0478
2479 Hull Ave
North Bellmore, NY
N W P Assoc Inc
(631) 286-4795
1107 Station Rd
Bellport, NY
National Association of the Remodeling Indstry
(585) 396-9370

Canandaigua, NY
C S Constr & Home Improvements
(914) 245-2880
2911 Gomer St
Yorktown Heights, NY
Topline Home Improvements
(718) 769-4555
2056 Utica Ave
Brooklyn, NY
Melco Construction Corp
(718) 282-1066
1228 Brooklyn Ave
Brooklyn, NY
Fjb Associates Llc
(518) 452-8061
427 New Karner Rd
Albany, NY

Provided By:

Source: TOOLS OF THE TRADE Magazine
Publication date: July 11, 2006

By TOOLS OF THE TRADE Editors

Whenever adding any type of dormer, it's essential to determine the roof load and design the load path transfer to the existing floor joists or roof rafters. Then you can ensure adequate bearing points, or add framing and install beams to carry the loads through the walls down to the foundation. It wouldn't be a bad idea to consult a structural engineer for guidance, especially on larger dormers.

Gable Dormers

Gable dormers get their name from the gable roof covering them. These dormers are built perpendicular to the existing roof plane, with their ridges extending out from the existing roof. This means the sidewalls of the dormer bear and transfer the weight of the dormer rafters to the existing main roof rafters or the existing floor joists in the room/attic below. Which way you decide to support the dormer loads depends on the interior layout you're shooting for.

Bearing on the Rafters. My first choice is to install double or triple roof rafters on either side of the new dormer for the sidewalls to rest on. This eliminates the need to remove attic subflooring to insert additional joists. It also leaves the area beneath the common rafters uncluttered without any walls to interfere with open space and provides freedom to lay out partition walls later.

I locate the position of the dormer and do as much work as possible inside the attic before opening up the roof.

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