Drip Cap: Difference between revisions
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Drip | =Drip Caps= | ||
This article says that even windows with an integral nailing fin benefit from a drip cap. | This article states that a proper drip cap is 26 ga steel with 4" tall back flange. [https://www.probuilder.com/drip-cap-essential-absolutely] - not this ''drip cap'' from Menards [https://www.menards.com/main/building-materials/siding/siding-trims/10-steel-flashing-drip-cap-1-1-4/white1571554/p-1444448665717-c-1495119088651.htm] | ||
Drip cap is used whenever water running down a wallcan get behind a horizontal surface. Such as behind a door or window, or when the door or window has a non-integral flange at front or back or both. | |||
This article says that even windows with an integral plastic nailing fin benefit from a drip cap. | |||
https://www.marvin.com/blog/a-guide-to-window-rigid-head-flashing | https://www.marvin.com/blog/a-guide-to-window-rigid-head-flashing | ||
This seems to be folklore, not | This seems to be folklore, not correct. How does a drip cap benefit if it sends water away from fully water-proof plastic? | ||
See picture: | See picture: | ||
| Line 15: | Line 19: | ||
Can you tell me what the drip cap is doing in this case? My conclusion is - nothing. | Can you tell me what the drip cap is doing in this case? My conclusion is - nothing. | ||
Properly designed windows let in water around the gaskets (but not likely at the panes themselves). Windows are designed to let this water back to the outside from the frame area: | =Window Water Instrusion= | ||
Properly designed windows let in water around the gaskets (but not likely at the panes themselves). Windows are designed to let this water back to the outside from the frame area: [https://www.windowguysflorida.com/blog/why-you-need-to-waterproof-your-hurricane-impact-windows/#:~:text=Due%20to%20function%20and%20design,strips%20and%20enter%20the%20frame.] | |||
https://www.windowguysflorida.com/blog/why-you-need-to-waterproof-your-hurricane-impact-windows/#:~:text=Due%20to%20function%20and%20design,strips%20and%20enter%20the%20frame. | |||
Just sayin'. | Just sayin'. | ||
Latest revision as of 18:15, 5 April 2023
Drip Caps
This article states that a proper drip cap is 26 ga steel with 4" tall back flange. [1] - not this drip cap from Menards [2]
Drip cap is used whenever water running down a wallcan get behind a horizontal surface. Such as behind a door or window, or when the door or window has a non-integral flange at front or back or both.
This article says that even windows with an integral plastic nailing fin benefit from a drip cap.
https://www.marvin.com/blog/a-guide-to-window-rigid-head-flashing
This seems to be folklore, not correct. How does a drip cap benefit if it sends water away from fully water-proof plastic?
See picture:
https://photos.google.com/search/windws/photo/AF1QipP5zbcnh7JKwpaxeR2unHZKB6H-DBuEO2eUXpPh
This is prior to sealing nailing fin with butyl tape.
Can you tell me what the drip cap is doing in this case? My conclusion is - nothing.
Window Water Instrusion
Properly designed windows let in water around the gaskets (but not likely at the panes themselves). Windows are designed to let this water back to the outside from the frame area: [3]
Just sayin'.