感谢！用哪种sealant好呢？

喷的？ https://www.costco.com/flex-seal-clear-spray%2C-2-pack.product.100737729.html

还是传统caulk？ HD有很多种，比如https://www.homedepot.com/p/Henry-209XR-Extreme-Rubberized-Wet-Patch-Black-Roof-Leak-Repair-Sealant-Caulk-10-1-oz-HE209004/100001308

需要买一大桶吗？也没有多贵： https://www.homedepot.com/p/Henry-208R-Rubberized-Wet-Patch-Black-Roof-Leak-Repair-Sealant-0-90-gal-HE208R142/100041225