Short answer: never staple, nail or screw anything into shingles or flashing. Use plastic gutter clips, shingle tabs or ridge clips instead, and keep ladders off the gutters.
Every January we get calls about leaks that trace straight back to December decorating. The lights come down, the holes stay, and the first real rain finds them.
What causes the damage
- Staples and nails through shingles. Each one is a hole through your water barrier. A single strand across a roofline can mean fifty punctures.
- Screws into fascia and flashing. Fascia holes let water behind the gutter. Flashing holes leak immediately and are expensive to chase down.
- Ladders leaned on gutters. Gutters are not structural. A ladder bends the front lip, breaks the pitch and starts the overflow problem that rots fascia.
- Walking a cold roof. Asphalt shingles get brittle below about 45 degrees. Foot traffic on a cold morning cracks shingles that would have flexed fine in July.
- Heavy inflatables and rooftop displays. Anchor lines tied to vents, pipes or ridge caps pull them loose in wind.
What to use instead
- Plastic gutter clips. They hook over the gutter lip with no fasteners at all. Cheapest and safest option for the main run.
- Shingle tabs. Thin plastic clips that slide under the shingle edge and grip without piercing anything.
- Ridge clips for the peak, which slide over the ridge cap rather than through it.
- Adhesive clips on trim, soffit and brick. Check the temperature rating, since many adhesives fail in a cold snap.
- A standoff or stabilizer bar on the ladder so the weight lands on the fascia or wall rather than the gutter.
Timing matters more than people think
Hang lights on a mild, dry afternoon. In the Hill Country that usually means late November rather than a cold snap in mid December. Warm shingles flex. Cold shingles crack, and you will not see the crack until spring.
The same applies to taking them down. If you can only get to it on a 38 degree Saturday in January, pulling clips is fine but walking the roof is not.
Before you climb up at all
If your roof is over fifteen years old, or you already suspect it has issues, decorating season is a bad time to find out. A roof that is already marginal does not handle foot traffic well, and a leak that starts in December sits behind your ceiling through the wettest part of the Hill Country year.
Worth doing a quick check from the ground first: lifted or curling shingles, granules piled at downspouts, loose flashing around the chimney, sagging gutters. Any of those and the lights can wait until the roof is sorted.
If you already have holes
Old staple and nail holes from previous years do not seal themselves. They are small enough to ignore for a season or two and then they are not. If you have been stapling for years, it is worth having someone look at the roofline and seal what is there properly rather than hoping.
We do free inspections, including the ones that end with us telling you the roof is fine and to go ahead and decorate. Request one or call (210) 245-4125.
