Jayco 2015 Jay Flight DST Owner's Manual page 120

SECTION 13 - EXTERIOR
S
EALANTS
Failure to properly maintain or reseal your RV may result in serious water
damage to the roof and other parts of the RV. This damage is not covered
by the Towable Limited Warranty.
Sealants perform a very important function and should be inspected closely and
regularly maintained. We incorporate many different types of sealants, including
butyl/putty, black butyl-encapsulated foam, silicone (clear and colored), roof
sealant and foam.
environmental factors affect the pliability and adhesiveness of sealants. You or
your dealer must:

Inspect all sealants, a minimum of every six months. Make sure to check the
roof and all four sides of the RV including al moldings, doors, vents and
exterior attachments. A quick walk around the RV before leaving may help
prevent potential problems during trips and vacations.

Have the sealant replaced if you notice any cracks, peeling, voids, gaps,
breaks, looseness or any sign of physical deterioration. Reseal at lease one
time each year as preventative maintenance.

Always use the same type of sealant that was removed. Your dealer service
or parts manager can help you obtain the correct sealant(s).
The sealants may become damaged due to ultraviolet exposure, air pollution,
freezing temperatures and exposure to other elements. If deteriorated, repair
immediately to prevent damage.
If you notice water inside the RV, immediately have the dealer check for the
source of the leak. Failure to correct the leak may result in serious damage to
your RV; this damage may not be warrantable.
Although the diagrams below may not accurately reflect the exact model of your
RV, make sure you inspect all sealants as indicated in the text. If you have
questions and/or need assistance with sealing your RV, consult with your RV
dealer.
13-6
CAUTION
In general, sealants do not have "set" lifetimes.
JAYCO TOWABLE
Varying