You can sister the joists by cutting 2 x8 boards the same length as the joists applying construction adhesive and affixing each to a joist with nails.
Opening up dormer attic.
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Locate one side wall of the dormer at an existing rafter.
Step 2 make the rough opening in the roof.
Craftsman style homes may end up having awkward attics due to their limited height.
Depending on the dormer additions your attic experiences a makeover that brings about more floor space as well as enhanced headroom.
One effective way of opening up the attic is by adding dormers.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
Begin this step by removing the roofing shingles roofing paper sheathing from a span of three or four rafters exposing the attic.
Shanafelt says many people add dormers because they view their current attic as wasted space that provides a lot of floor space but not enough room between it and the ceiling.
You might open up your attic and find bare joists with fiberglass or cellulose insulation between the joists.
Double this rafter by nailing an identical rafter to its side.
You can use a dormer to add another window to your home and break up the monotonous appearance of your roof or to add another whole level to your home.
They look like eyes and rest on the roof of the house.