Flashing windows with no sheathing?

katdipJune 4, 2009

Cross posted Remodeling

I'm planning to renovate the bump out on my 1916 house to make it a usable breakfast nook. I will be replacing 4 windows, and adding an exterior door to a new deck. The hang-up is that outside siding is 1"x8" redwood shiplap, nailed directly to the studs - no sheathing or tarpaper. It is generally in good shape, except where the crappy windows leaked. My main question is: how should I install and flash the door and windows to avoid leaks? Everything I've read assumes there is sheathing under the siding (so window is installed on sheathing, flashed, then siding and trim put on). My two options seem to be:

1)Install nailing flange directly to siding, caulk the hell out of it, and put trim boards over the flange and caulk all seams.

2) Mount windows directly to studs, header, and sill (after wrapping all those in adhesive flashing), flash over flange, and install siding and trim, including a drip cap that goes under the siding but over the top of the window.

I'm leaning toward #2, because I am suspicious that even a well caulked surface mounting won't keep water out. But does anyone have any thoughts or suggestions to make this more waterproof?

Thank you for reporting this comment. Undo

Bye bye

    Bookmark   June 15, 2009 at 8:33PM
Sign Up to comment
More Discussions
Extruded Mortar
I have an older home built in the 1950`s which has...
Old-Growth Heart pine paneling -- reused as flooring?
Hi, My new 1939 colonial has a family room and foyer...
Adding a full bath to an old house.
Hello, first post in this forum. I am relocating and...
Should we try to reuse old windows?
I am not sure how old the windows in our second floor...
prairiemoon2 z6 MA
Craftsman tile question
I recently visited a friend who lives in a beautiful...
Sponsored Products
Achim Gramercy Valance - GMVL14CC12
$14.99 | Hayneedle
Elite Mahogany 48 to 84 Inch Decorative Traverse Rod w/ Rings Royal Finial
$89.95 | Bellacor
Red & Green Dinner Plate Storage Chest
$12.99 | zulily
Kas Rugs Blinds & Shades Cushy Shag Gold 5 ft. x 7 ft. Area Rug BLI15675X7
Home Depot
Flos | Mini Glo-Ball T Table Lamp
$189.00 | YLighting
Each 108"L Antiquity Curtain
$275.90 | Horchow
Bali Sliding Panels: Cabo, Haven, Trinidad & Antigua
ELK Lighting Barringer Chandelier 15037/8+8+4 - 50W in. - 15037/8+8+4
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™