Hard-roll covers Waterproof?

[Slonis]

But First, sorry for my Bad english.
Hello everyone, is there a way to get a hardroll cover waterproof?
I myself own the Truxedo Sentry CT and am happy with it.
I have already worked on my side rails with additional seal. However, my bedrug is always wet in the corners, front right and left.
Do you have a solution or do you know exactly where it can still run in?

 

[Darksteel165]

But First, sorry for my Bad english.
Hello everyone, is there a way to get a hardroll cover waterproof?
I myself own the Truxedo Sentry CT and am happy with it.
I have already worked on my side rails with additional seal. However, my bedrug is always wet in the corners, front right and left.
Do you have a solution or do you know exactly where it can still run in?

You should post what truck you have, depending on the bed and Ramboxes and stuff there are different ways to do it.

 

[Slonis]

You should post what truck you have, depending on the bed and Ramboxes and stuff there are different ways to do it.

Ohh sorry
Gen 5
W/o rambox
W/o multi tailgate
Short bed

 

[Darksteel165]

Could you post pictures of where water is getting in?
Is it cracks, or under this seal of the cover?

Also check this out. Looks pretty universal.

TruXedo TruXseal Tailgate Seal - Single Application 1703206 | RealTruck

1703206 TruXedo TruXseal Tailgate Seal - Single Application is on sale at RealTruck with a Low Price Guarantee and free shipping! Check out specific images and videos to make the perfect buying decision.

realtruck.com

Could also use Silicone if there are spots you know water is in

I know on my ram with ram boxes and multi-function tailgate there are weird corners up front that a cover doesn't go over, hard to explain. Its where the sides of the bed end there's like 2 squares. I was going to seal it but somehow it drains right down and doesn't collect in the end of the bed oddly enough.

 

[Slonis]

 

[Darksteel165]

Check this out

BAK Revolver X2 Front Bulkhead Seal Replacement | BAK Industries | BAK

Need a Front Bulkhead Replacement for your BAK Revolver X2 tonneau cover? BAK Industries offers replacement parts for all BAK truck bed covers.

bakindustries.com

It has double sided tape on the bottom, and it's like a foam rigid piece. You can put it at the back and the rubber piece at the end rests on this
It looks like water is seeping through the very ends on the sides because the seal doesn't go all the way

I also see a TruXedo Replacement Bulkhead Seal, which looks pretty similar but appears to be a softer lower density foam

TruXedo 1117840 Replacement Bulkhead Seal | eBay

Find many great new & used options and get the best deals for TruXedo 1117840 Replacement Bulkhead Seal at the best online prices at eBay! Free shipping for many products!

www.ebay.com

To confirm this on a hot sunny day when it's completely dry, take a garden hose on low pressure and spray the top of the cover in very small areas and see where it might come in. When you think you know where it's coming from test the other side to confirm.
I think it's the spots I marked on your pictures.
You can use foam or silicone to seal it and trim any excess silicone.