I have seen cases where the joist butyl tape is applied to overlap to the sides of the joists and over time pulls apart. I recommend to only use butyl tape where it is compressed by two surfaces. Similar to a gasket is used to seal any two parts by it being compressed via clamp or bolts.
@@dustinstorey6779 moisture will enter from where the screw tears hole in joist tape ... and once it gets underneath (especially in freezing conditions) it will have no easy where to go and will seep in the screw hole (and problem will compound as tape loses adhesive power over a few months)... to me its a stretegicaly created point of failure. If there was no tape then there's that much more surface to air contact that speeds up drying ... but either way screw hole is going to be a point of failure in long term.
I have seen cases where the joist butyl tape is applied to overlap to the sides of the joists and over time pulls apart. I recommend to only use butyl tape where it is compressed by two surfaces. Similar to a gasket is used to seal any two parts by it being compressed via clamp or bolts.
I think it’s just another thing to sell people. I’d guess it does more harm than good by trapping moisture.
How’s it trapping moisture if it’s only on one side? 🧐 if moisture can get into the wood from the sides and bottom then it can also escape.
@@dustinstorey6779 moisture will enter from where the screw tears hole in joist tape ... and once it gets underneath (especially in freezing conditions) it will have no easy where to go and will seep in the screw hole (and problem will compound as tape loses adhesive power over a few months)... to me its a stretegicaly created point of failure.
If there was no tape then there's that much more surface to air contact that speeds up drying ... but either way screw hole is going to be a point of failure in long term.
@@noneewqwe I also wonder how well it work over time. It may be one of those things that people regret doing 10 years from now.