Why is my pool screen sagging?
A sagging panel almost always means the mesh has stretched or pulled loose from the spline channel — not that the aluminium frame is failing. On a Lake Mary cage that is usually 25–45 years old, the spline holding the mesh in the channel has hardened and shrunk with age, so tension that used to hold no longer does.
What is actually happening
Mesh is held in the frame’s channel by a rubber or vinyl spline pressed in alongside it. New spline grips the channel tightly and holds the mesh under even tension. Spline that has sat in Central Florida sun for two or three decades hardens, shrinks slightly, and stops gripping as hard — the mesh works loose a little at a time, and the panel starts to drum and sag rather than sit flat.
The other common cause is simpler: age and weight. A roof panel that has been collecting oak leaf litter and standing moisture — common along Country Club Road and the Markham Woods corridor — sags under that extra weight even before the spline lets go on its own.
One panel, or the whole cage?
One or two sagging panels on a cage under about ten years old is a spot repair. Multiple sagging panels on a cage in the 25–45 year range that describes most of Lake Mary’s stock is a sign the rest of the mesh is the same age and about to do the same thing — see rescreen vs. repair for the actual decision framework.
Either way, the fix specifies a spline sized to the frame’s own channel, not a default roll pressed in over old residue — the same standard set out in the spec table on the home page.
Questions people actually ask
Can a sagging pool screen panel be re-tensioned without new mesh?
Sometimes, if the mesh itself is still sound and the spline channel is not degraded — the panel is pulled and re-spun into the same channel at proper tension. On an older Lake Mary cage this rarely holds, because the spline that let it go slack in the first place has usually hardened and shrunk, and forcing it back into an undersized or brittle channel just fails again in the next storm.
Is a sagging screen a sign the frame is failing?
Almost never, locally. Seminole County pool cages are engineered to 129 mph Risk Category I, and the aluminium frame is usually still sound well past the point the mesh and spline have given out — that mismatch is exactly why the frame survives storms here while the screen does not. A sagging panel is a mesh-and-spline problem far more often than a structural one.
Send a photo of the sagging panel
That alone usually tells us whether it is a spline job or a full-cage conversation.
Phone: (689) 666-9380 · Email: quotes@lakemaryrescreening.com