Framing Gable and Shed Dormers New City NY

Whenever adding any type of dormer in New City, 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

Great American Roofing Company
201-825-2155
110 Chestnut Ridge Road #337
Montvale, NJ
First Housing Management, Inc.
(973) 340-1616
106 Route 46 East
Saddle Brook, NJ
Eric's Roofing Inc
(201) 847-8033
Ridgewood Area
Wyckoff, NJ
Hackensack Roofing Co
(201) 487-5050
83 1st St
Hackensack, NJ
Fisher Brothers Roofing
(914) 968-2666
1280 Saw Mill River Rd
Yonkers, NY
Segelman Shaw Roofing & Siding
(845) 364-8200
32 Pleasant Ridge Rd
Spring Valley, NY
American Eagle Exteriors Llc
973-838-4505
284 Hamburg Tpke
Riverdale, NJ
Mms Moving Service
201-282-5051
17 Dora Ave
Waldwick, NJ
A Kovach Roofing & Sheet Metal
(973) 742-5092
29 Alabama Ave
Paterson, NJ
Mario Vitti Contracting Inc
(914) 698-6777
313 Halstead Ave
Mamaroneck, NY
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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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