Asphalt Shingle Roof

Asphalt shingle is the most common residential roofing system Zilker Roofing replaces, as an Owens Corning Preferred Contractor.

On asphalt shingles hail leaves bruises and knocks granules loose, exposing the fiberglass mat underneath. That damage often is not visible from the ground and may not leak for months, which is why granules collecting in your downspouts are worth acting on.

On a shingle roof most leaks start at a penetration rather than in the field of the shingles — pipe boots, chimney and wall flashing, skylights, and valleys are the usual entry points, which is why one leak does not mean the whole roof is finished.

On a shingle roof the tell-tales are specific: bald spots, missing granules, several cracked or missing shingles, sagging, or more than 10 to 15 years since installation. Any one of those is worth an inspection; several together usually means replacement.

Wind takes shingles at the edges and ridges first, where the seal strip has the least help. A shingle that is lifted but still in place matters as much as one that is gone — its seal is broken, so the next storm gets underneath it.

Most code-driven items on an Austin shingle re-roof are parts you never see: drip edge at the eaves, ice-and-water shield in the valleys, synthetic underlayment, new pipe boots, and ridge ventilation for airflow. They are line items worth looking for on any estimate.

Asphalt shingle in the Austin heat typically lasts 10 to 15 years, shorter than its national rating, which is why roof age matters locally.

Asphalt shingle is the most cost-effective replacement material and the baseline for replacement cost.

Metal roofing costs more up front than asphalt shingle but typically lasts far longer, the trade-off Austin homeowners weigh.

Asphalt shingle is the most common system Zilker Roofing installs in a full residential roof replacement.

Tile outlasts asphalt shingle and suits certain architectural styles, at higher material and structural cost.

A 3-tab shingle is one flat layer with cutouts; an architectural shingle laminates two layers into a thicker, heavier mat - which is why architectural carries higher wind ratings and 3-tab is what blows off first in the same storm.

Shingles are rated down to 2/12 pitch, and only with doubled or membrane underlayment between 2/12 and 4/12; below 2/12 water moves too slowly for an overlapped system to shed, and only membrane roofing keeps it out.

A shingle roof is a stack of layers - decking, drip edge, underlayment, membrane at the trouble spots, starter, shingles, ridge - and it fails at whichever layer was skipped, which no one can see from the ground on installation day.

A 'lifetime' shingle warranty covers manufacturing defects, usually prorated after an initial period - it does not cover installation errors, which cause most early failures and fall to the installer's separate workmanship warranty.

Cool-roof shingle lines use reflective granules rather than color alone, but color still matters: a light shingle reflects meaningfully more summer heat than a dark one of the same product line.

Malarkey packages its residential lineup as a coordinated Secure Choice roof system of five components installed in order, which is the manufacturer's expression of the principle that an asphalt shingle roof is a system rather than a single product.

Every architectural shingle brand family is one component choice inside a complete asphalt shingle system of underlayment, flashing, and ventilation.