Framing Gable and Shed Dormers Monroe NY

Whenever adding any type of dormer in Monroe, 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

Cascella and Sons Construction
(631) 582-0100
70 Carleton Ave
Central Islip, NY
Rg Enterprise
(518) 843-1210
1795 County Highway 107
Amsterdam, NY
Sears Home Improvement Products
(914) 235-2048
5 Plain Ave
New Rochelle, NY
House Doctor of New York Llc
(631) 462-0711
90 Burr Rd
East Northport, NY
Custom Interior Design
(518) 399-5122
822 Sacandaga Rd
Schenectady, NY
B M I Decks
(845) 354-9191
64 Shadowmere Rd
Monroe, NY
House Beautiful Renovators Inc
(718) 845-0700
11718 Rockaway Blvd
Jamaica, NY
Pek Construction
(631) 665-4300
1611 Manatuck Blvd
Bay Shore, NY
Sunview Designs Inc
(631) 329-1410
38 Rutland Rd
East Hampton, NY
Badge Contracting
(845) 356-9628
177 Viola Rd
Suffern, 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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