If there is an unsealed gap then merely sealing the gap will generally solve the issue.
Add a firestop in attic for fireplace.
If a fire starts within the wall the top block stops the fire from getting into the attic.
This 8 inch chimney liner is created using top of the line materials that you can have faith in.
Firestops must seal all unprotected openings in firewalls.
This kit is exactly what your napoleon attic firestop from a direct vent pipe with an 8 inch inner diameter and a 10 inch outer diameter needs.
They are often installed at each floor level of the house and where the vent passes from the top floor into the attic.
It s important to add solid wood blocking as well if floor joists intersect a wall so that the fire can t go up a wall and then sideways in between floor or ceiling joists.
An innovative and practical solution that increases the safety.
At times the fireplace installer forgot to install a fire stop.
For wood stove and fireplace.
If so adding one is a good idea.
Such openings are found around the perimeter of pipes and wiring that penetrate firewalls.
Chimney flue and pipe fire stop.