s armbruster

02:12PM | 11/24/01
Member Since: 11/23/01
1 lifetime posts
i have a question regarding ventilation in a cathedral ceiling. i recently changed the roof and rafters on an existing house from a 5/12 pitch to a 12/12 pitch roof. the rafters are 2x8 and i plan on using 6 in. r-19 fiberglass kraft backed insulation with the preformed dura vent foam panel to keep the air space open between the roof and insulation. i have installed a ridge vent and soffit vent. the question is, what should i do where the intersecting gable and valley rafters don't allow soffit ventilation through to the jack rafters? would the ridge vent be enough? this intersecting gable does face to the north and would be cooler than the rest of the roof. i thought about holes through the valley rafter but i would lose strength in the valley rafter. i assume that this would not be the best thing to do. if anyone has faced this this situation before please let me know what you did. thanks.


07:15PM | 11/25/01
Member Since: 09/23/01
242 lifetime posts
You need to ventlate the hips and valleys, the best way to do this is to drill a 2" hole as high as you can on the rafter, and then add an angled framing anchor.

Or glue and nail a 12" long piece of 1/2" plywood on the uphill side and then drill the hole thru.

Click to reply button
Inspiration banner


Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply choose button


Post new button or Login button

To test the boundaries of small-footprint living, interior designer Jessica Helgerson moved her family to a 540-square-foo... Filling an underutilized area beneath the stairs is a smart way to save space. Doing so with a stash of wood, however, is ... The Audubon Society inspired wallpaper in this Adirondack-styled mudroom will get you in the outdoor mood. Grab your coat ... Chalkboard paint opens up endless possibilities for customizing your dresser time and time again. Use chalk to label the c... A fireplace in the bathroom creates the ultimate setting for relaxation. Homeowners often choose electric or gas over wood... This roomy boot tray made from punched metal stands up to all the elements. Station it in your mudroom or at your back doo... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... FLOR tiles are an affordable way to customize a carpeted floor covering for any space. Make anything from runners to wall-... Chalkboard paint features prominently in this elegant yet unpretentious headboard design. Add a new message daily to reflec... Salvaged boards in varying widths and colors make up the dramatic accent wall in this attic space. The high-gloss white of... The indecisive homeowner need not fret over choosing one (or even two) cabinet colors. The kitchen cabinets in this artist... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... Simple and striking, a couple of pieces of "lovingly used" furniture creates a special kind of charm. A weathered chair fo... First dress up your metal shelves with a coat of paint in an accent color that complements your kitchen decor. Then arrang... Dark wood shelving and a matching upholstered bench keep this closet sleek and refined. The large window brightens the sub...
Follow banner a
Newsletter icon Flipboard glossy Facebook Twitter Pinterest Youtube Rss icon