When do freeze-thaw and storm seasons hit Indianapolis roofs?

What does the winter record show for Indianapolis?

The record shows that freeze-thaw and ice are the winter threats to Indianapolis roofs. The NWS Indianapolis office's record of the January 2005 ice storm describes as many as 150,000 homes in the state losing power, and it describes trees and power lines brought down.

A winter that brings repeated freezes and thaws is the one that does the most damage to joints, valleys and the eave. Water enters in a thaw, freezes in a crack in the cold and widens the crack when it expands. The damage builds through the season and shows at the first warm spell.

The sources for this guide did not find recent winter ice events in Indianapolis for 2025 or 2026, so the calendar does not assert a recent event. The checklist still applies every winter, because the joints and the eave are the same in any cold season.

What does the spring and summer record show?

Straight-line wind and hail are the spring and summer threats. The 10 August 2020 derecho brought widespread wind damage across central Indiana, and hail arrives with the storms of spring and summer.

The NWS Indianapolis office reports that the derecho of 10 August 2020 brought widespread wind damage across central Indiana, with trees and power lines down, and it reports four deaths across the Midwest. NOAA estimated the single day's cost above $11 billion. That is a summer record, and it shows what a straight-line wind can do to roofs and trees.

Hail in spring and summer marks metal and shingles, and wind lifts edges and tears ridge caps. The checklist for those seasons is built on the storm record for the address, which is read before the roof is walked.

What does the calendar look like across the year?

The calendar sets out what to check in each part of the year. It is built on the two seasons of threat and on the roof's needs, and it does not predict when hail or ice will come.

Autumn is the time to prepare for winter. Winter is the time to watch for ice and to deal with any small faults before the spring storms. Spring is the time to find what the winter opened and to prepare for wind and hail. Summer is the time to watch for storm damage and keep the attic ventilated.

The table sets out the checks by season. A homeowner can print it, keep it with the house file and tick off each check when it is done.

The spring period also covers the first warm weeks, when freeze-thaw damage shows most plainly. A ceiling that stained in March may have been wet since January, and the spring visit is the point at which the winter's record is written down. Every joint the thaw opened should be listed with its date, so the repair in late spring starts from a complete picture.

Why is autumn the best time for the winter checkup?

An autumn checkup finds the faults the winter would enlarge, while they are still cheap to fix. The sealant, the flashing and the attic can be sealed before the first hard freeze.

A joint that opens in a thaw is a joint that could have been sealed in October. The same applies to a pipe boot, a flashing and an eave that has a gap where the ice dam will start. The autumn visit is the cheapest point in the year to find those faults.

Autumn is also when leaves and debris fall onto the roof. The valleys and gutters collect them, and a clogged valley holds water against the covering and freezes there in the cold.

Why is spring the second check?

A spring checkup after the thaw shows what the winter did. It finds the joints that opened, the shingles that cracked and the ice marks at the eave, and it sets the baseline for the wind and hail season.

The spring check compares the roof with the autumn record. Any change is noted, and any winter damage is recorded before the storm season begins. A roof that enters the storm season in a known state is easier to read after a storm.

The gutters and downspouts are checked at the spring visit as well. A winter of ice often bends a run, and the bend is easier to fix before the spring rains reach it.

How does the summer affect the roof?

Summer heat dries the sealant that holds shingles down and heats the attic. A hot attic shortens the life of the decking and the covering, and dry sealant lets wind lift shingles that would otherwise hold.

The sealant on an asphalt shingle softens in warm weather and bonds well, but it can lose its grip over many summers. A gust that a newer roof would hold can then lift the edge of an older one, and the storm record shows which gusts reached the address.

The attic is the second concern. Vents blocked by insulation or debris leave the attic without airflow, and the heat is carried into the decking. The technician checks the vents and records their size and condition.

Winter checks are short but worth doing. Look at the eave after snow, note any ice that has formed in a ridge, and check the ceilings below the roof after each thaw. A stain that is new since the last check is a sign that water is moving, and the date and photograph of the stain are the first item for the technician.

A winter visit should also record the date of the most recent thaw and the state of the eave at that point. The two together show how quickly a dam formed and how fast the melt drained, which is the information the spring repair needs.

When should you call outside the calendar?

Call at any time when a storm warning covered the address, when the roof is open to the weather, or when water is coming through a ceiling. Those are the times the calendar is no longer the guide.

A warning for the address is the most important reason for an inspection, whatever the month. The inspection records the storm marks and the roof's condition, and it gives the homeowner a dated record for an insurer.

An open roof or a ceiling leak is an emergency, and the line is answered around the clock on (833) 751-2102. A crew is sent as soon as one is free, and the crew will say when it expects to arrive, since ice and storm roads can slow the trip.