Framing Gable and Shed Dormers Sayville NY

Whenever adding any type of dormer in Sayville, 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

Incredible Home Improvements, LLC
(516) 608-3375
15 William Street
Amityville, NY
Pro Quality Home Improvements Inc.
631 393 6812
500 Bi-County Blvd.
Farmingdale, NY
Gary Owens Construction Inc
(631) 427-8679
92 Fort Hill Road
Huntington, NY
John J. Griffin Roofing
(877) 669-6269
619 Sunrise Hwy
West Babylon, NY
Dicarlo Siding & Roofing Co
(631) 897-3737
97 Orange St
Central Islip, NY
Nill Contracting
631-724-9511
14 regal ct
st james, NY
NEW YORK CITY BEST CONSTRUCTION CORP.
347-26-9950
25 BEECHWOOD PLACE
Massapequa Park, NJ
Leafguard Gutter Systems
(631) 968-6854
63 3RD Ave
Bay Shore, NY
Top Quality Roofing Inc
(631) 888-0613
644 N Richmond Ave
Lindenhurst, NY
Timberline Roofing
(631) 427-3000
11 Oriole Pl
Huntington, 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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