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A strut is a long steel reinforcing channel fastened across the inside of a door section. On wide doors and wind-rated doors, struts stiffen the sections so they don't bow. Amarr's WindPro doors, for instance, are built to withstand specific high-wind pressures with an interior reinforcement system. (source: Amarr)
On a wind-rated door, strut positions aren't a matter of taste. Amarr says struts on its Wind Load doors go in predetermined positions based on testing, so the door performs against the stated wind speeds. (source: Amarr) If one has to cross a window, the fix is Frost, Obscure or Dark Tint glass, or painting the strut black, not moving it. (source: Amarr) To learn what your home needs, Wayne Dalton suggests asking a local architect, engineer or building department, then checking with your insurer. (source: Wayne Dalton)
The top section takes the push and pull of the opener. Amarr lists the usual reasons it cracks: the strut in the wrong position, the top roller and opener bracket pivot point set wrong, springs weaker than the door needs (so the opener forces the door), the opener arm hitting the strut on the way up, the wrong opener slope, or a down limit that pushes hard on the door when it closes. (source: Amarr)
That list points to the repair: correct the strut and bracket, rebalance the springs (torsion spring repair) and reset the opener. A section that has already cracked through may need panel replacement.
We correct strut and opener bracket problems and replace damaged sections on doors from any maker. Not an authorized dealer for any brand. Licensed and insured, and we service and install all brands. Proof of insurance, license and 1099 available on request.
Call (781) 602-0737 with a photo of the inside of the top section.
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