Window Sill Capillary Break

The sills of traditional wood windows were typically self flashing and some builders are installing window trim that mimics the traditional window sill.

Window sill capillary break.

Measuring an old window sill width. Acrylic bullnose window sill moulding model n6c108dw 212 00 212 00. If draperies must be drawn for privacy let the panels hang straight and rig drawstrings so. If your sill is rotting or falling apart replace it with these simple steps.

Windows doors siding enclosures. Such add on sills may be considered self flashing if they approximate the specifications in clauses 9 27 3 8 4 b e. Guide to covering an exterior window sill with aluminum trim. From the inside take the measurement from end to end fig 5 1.

A window sill should have 3 12 or 3 by 12 slope or pitch for good rain drainage. But if done incorrectly it can lend a sloppy amateurish look. 3 12 slope means that for every 12 inches of horizontal distance run. Now that the window sill is exposed inside its a simple 2 step process to measure the width.

And run a capillary break on the under side of the sill. It s meant to be an air sealing gasket but it also is working as a capillary break because it keeps water in the concrete from wicking up into the wood. My side jamb was notched at an angle to accept the window sill fig 5 2. A huge window wall can overpower a room.

The light blue sill sealer installed between the bottom plate and concrete most likely for air sealing in the top photo is closed cell foam. The reason is simple. Caulking windows to give them a finished look inside and out and seal out leaks and drafts is a fairly common diy task. They can hang straight or be tied back in pairs.

Whoops i see you mentioned that above. Your window sill is the bottom portion of your window running horizontally within the jamb resting against the outside of the window sash. Set your store to see local availability add to cart. 07 10 2013 08 40 am 10.

Pay special attention to the side jamb and window sill. Wooden sills have a tough time standing up to the elements year in and year out. Vinyl composite sill moulding model 0711807003 14 97 14 97.