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Flashing, Valley and Skylight Repair in Spring, TX

Most of the leaks on a Spring–Klein roof do not start in the field of shingles. They start where the roof changes direction or meets something else: a valley, a wall, a chimney, a skylight. Those are repairs, and a roofer who knows this market goes to them first.

Valleys Under Pines

A valley is where two slopes meet and where every needle on both slopes ends up. Packed needles hold water, dam it in heavy rain, and push it sideways under the shingle edge. Open metal valleys on 1970s and 1980s houses rust through under a permanent mat of wet straw; closed-cut shingle valleys on 1990s houses trap the debris under the overlapping course. Either way, the decking along the valley line is the first soft wood a roofer finds on an older Cypresswood or Memorial Northwest roof.

The repair is a cleanout, a look at the metal or the underlayment beneath, replacement of whatever has rusted or rotted, and new shingles woven back in on either side. Caught early it is a few hours. Caught after the decking has gone, it is a strip of new plywood along the valley, still a repair, and still much less than a roof.

Where Walls Meet Roofs

Many Spring two-stories have an upper wall that meets a lower roof, over a garage or a rear addition. Step flashing carries the water down that line, and counter-flashing or the siding above it keeps water off the top edge. When hardboard above the flashing has rotted, water runs behind the flashing instead of over it, and the ceiling below stains. That is a flashing repair and a siding section repair together, and doing one without the other is how it comes back.

Chimneys on the older customs in Champion Forest have their own version: a cricket that was never built, or counter-flashing that was caulked instead of cut into the brick. Both are repairs, and both outlast the shingles when done properly.

Roof valley with the shingles cut back to show the metal underneath, packed with pine needles

Skylights and Boots

A 1990s skylight is now old enough that its curb flashing and its seals are both at the end of their lives. Sometimes the fix is re-flashing the curb; sometimes it is a new unit on the same opening, still a repair. Pipe boots crack in attic heat on a twelve-to-fifteen-year cycle and take fifteen minutes each to replace. The roofer replaces all of them while up there, not just the one that leaked, because the others are the same age.

Flashing, Valley and Skylight Repair: Questions

How do I know a leak is the valley?

The stain is on a ceiling below the line where two roof slopes meet, and it shows up in heavy rain rather than every rain. Needles visible in the valley from the ground make it likelier still.

Is a valley repair a sign I need a new roof?

No. A valley fails from debris and standing water, not from shingle age. On a roof with life left, it is a repair.

Can a leaking skylight be repaired, or does it have to come out?

Curb flashing can be redone. A unit whose glass seal has failed, showing fog between the panes, is replaced on the same opening. Either is a repair.

Related

Leak at a Valley or a Wall?

Describe where the stain is. A roofer who has cleaned a hundred Spring valleys knows what is under the needles.

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