How to keep garage roof airtight?

[toontoonarmy123]

Hi,

I'm trying to make my garage airtight. There is gaps under the plastic sheets under the roof tiles that have small gaps where wind blows in. Any ideas how to plug the gaps or make it airtight?

Thanks

 

[Harry Bloomfield]

I'm trying to make my garage airtight.

Why would you want to, a good air flow, helps keep your garage dry, especially when you park a wet car in it.

 

[Alec_t]

Good ventilation is advisable to prevent problems from condensation.