Framing Gable and Shed Dormers Glens Falls NY

Whenever adding any type of dormer in Glens Falls, 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

Innovative Home Improvements of Saratoga, Inc.
26F Congress Street, Suite 255
Saratoga Springs, NY
Jim's Roofing
(518) 793-0290
Feld Ave
Glens Falls, NY
Ranch Construction
(716) 894-0960
157 Bright St
Buffalo, NY
Morgan Construction Enterprises Inc
(212) 866-7672
538 W 114th St
New York, NY
Mid Island Contractors
(516) 889-1529
221 Long Beach Rd
Island Park, NY
D.R.Wolfe Contracting
518-623-2753
60 PotterBrook Rd.
Warrensburg, NY
Innovative Home Improvements
26F Congress Street, Suite 255
Saratoga Springs, NY
For-Dad Construction Inc
(516) 249-6107
791B Main St
Farmingdale, NY
Infinity Improvements
(718) 727-9777
151 Benedict Ave
Staten Island, NY
Green Homes America by Hughesco
(716) 691-4663
140 Irwin Rd
Amherst, 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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