Aluminum is thermally stable in that it does not swell or shrink when the temperature or humidity levels change. Very little energy is lost through the frame material but in the case of wood and vinyl, energy is lost through the frame and vent seams after years of expansion and contraction.
Fleetwood offers a variety of sill options for a wide range of performance and design needs, with a high water sill for hurricane water performance or low profile sill for a minimal transition.
While every lifestyle product requires upkeep, Fleetwood products are resilient in even the extreme environments and come with a Lifetime Warranty.
With the versatility and unlimited configuration options, you can create hundreds of custom systems, including but not limited to, multi-slide, stacking, pocketing, meeting, curved, corner, multi-corner and barn doors.