Framing Gable and Shed Dormers Monsey NY

Whenever adding any type of dormer in Monsey, 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

DOVCON Inc.
201-935-6679
P.O. Box 366
Carlstadt, NJ
First Housing Management, Inc.
(973) 340-1616
106 Route 46 East
Saddle Brook, NJ
Lewis Roofing Co
(914) 668-5544
344 South 10th Avenue
Mt. Vernon, NY
Fisher Brothers Roofing
(914) 968-2666
1280 Saw Mill River Rd
Yonkers, NY
Fort Lee Roofing
(201) 228-1457
1638 Schlosser St
Fort Lee, NJ
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
AAA Cover All, Inc.
8 Pima Court
Oakland, NJ
Accomplished Chimney, Inc.
(973) 423-5933
960 Belmont ave
North Haledon, NJ
Data Provided by:
    

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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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