Exploring Asphalt Shingle Roofing Around Denver Metro Area?
APC Roofing puts down granule-surfaced coverings from the deck up on ranch homes, two-story houses and detached garages.
Reach us at 720-902-6940 and you will hear in plain terms what is needed.
Anatomy of a Covering – Raw Ingredients
Each shingle is built on a fiberglass mat for strength, while an asphalt coating keeps water out, and a layer of granules on top screens out ultraviolet light.
Bundles that seem identical on the shelf can differ widely inside, and added mass tends to buy durability. Hue is all a sample chip can show, but the manufacturer's printed sheet gives the test results.
Flat or Dimensional – Setting Them Apart
A three-tab piece has one layer and two notches that divide its face into tabs, so the overall look is orderly. Architectural shingles are built as a base with a second, trimmed ply fused on top, and the staggered outline throws shadows that suggest depth.
Thicker double-layer shingles weigh more across a slope, and published wind ratings are commonly higher as a result. Nailing on a two-ply shingle aims at the strip where the plies are joined, and most manufacturers print guide lines there.
Uses for the Flat Style – Practical Niches
Three-tab commonly goes on a shed, a carport or a covered porch, and a patch can match the rest of an older house. Many manufacturers have narrowed their ranges of that style, and discontinued hues cannot be ordered at all.
Laminated shingles hide small dips in an older deck better, whereas a single-ply strip telegraphs each bump. Either style goes over the same underlayment and flashings, and the shingle itself is the only part that changes.
Surface Wear Over Time – Early and Late Stages
A recently installed covering lets go of leftover grains for a while, and the amount tapers off quickly. A steady stream of grit from an aging covering shows the top layer is going, and the naked asphalt goes on to crack.
South- and west-facing planes bake the longest each afternoon, so the black asphalt often shows through there sooner.
Self-Sealing Designs: Limits in Cold Months
Each shingle carries a stripe of heat-activated glue, and on a hot day it softens and grips the row laid over it. Adhesion keeps air from getting under the exposed edge of each course, while the nails keep doing their share for decades.
In the cold months at the colder end of our territory, sealing can take many weeks to happen, and strong wind may raise tabs in the meantime. The manufacturer's sheet calls for hand-applied cement, and each package shows how much to use and where.
Securing Each Course – Why Accuracy Counts
Roofing nails go into a narrow band marked by the manufacturer, so the shank also grabs the upper margin of the row beneath. Four fasteners per shingle is the standard schedule, and high-wind or steep work moves the number to six.
Nails placed high skip the course below, an overdriven head slices the fiberglass, and a tilted shank props up the shingle resting on it. Every wind rating on a wrapper presumes the pattern was met, while a bad compressor setting repeats itself on every shot.
Sheathing Choices: Types and Condition
Flat sheets of plywood or OSB make up the deck, and each shank has to land in solid material. Homes that once wore wood shakes may still have spaced slats up top, and new sheathing bridges them before any shingles.
Once the old covering is off, any soft or delaminated section is cut out and swapped for sound decking, because nails in weakened material back out over time. A little clearance is kept at every panel seam, because swelling in damp seasons buckles anything laid too tight.
The Middle Layer – Types in Use
A water-shedding membrane covers the deck ahead of the shingles, and its seams are lapped so rain crosses them without entering. Asphalt felt is less common now that synthetic sheet has taken hold, because the newer product weighs less, tears less easily and lies flatter.
A membrane catches wind-driven rain that slips under the shingles, yet the maker limits how long it may be left uncovered.
Membrane at the Eaves: Trapped Runoff
At the colder end of our territory, snow over heated rooms melts even on a sub-zero day, and the meltwater refreezes at the unheated lower margin. Pooled water behind the obstruction travels uphill under the courses, where ordinary underlayment lets it through at every nail.
Colder-market codes call for a peel-and-stick membrane along the lower edge, and it runs past the interior face of the outside wall. Throughout our service area, valleys and chimneys commonly receive it as well, because those junctions carry heavy flow.
Perimeter Flashing: Under and Over
Prefinished drip edge follows each eave and each rake, and the lip carries water clear of the fascia. The underlayment covers the lower flashing, while on the gable ends the sequence is flipped.
Edge metal around the whole perimeter is a code requirement in many towns, since rain creeps back onto the decking where nothing guards it.
The Lowest Row: Installation Order
A purpose-made starter strip lines the bottom of every slope, so the sealant is positioned right at the lip. A field piece set backward carries its adhesive uphill, out of reach, so the lowest run relies entirely on its nails.
Most instruction sheets extend starter up both rakes, since wind crossing the roof tugs at its outer lines.
Junctions of Adjoining Planes: Choosing a Style
An open valley leaves a metal trough visible in the middle, and the closed-cut type carries one side's courses through while the other side is cut back. Interlacing rows from each plane suits single-layer products, but thick laminated shingles bend poorly that way.
The middle of the trough is kept free of fasteners, and a peel-and-stick liner covers the wood below. Collected leaves and twigs slow the flow and keep the surface wet, so water starts finding a path under the sides.
Roof-to-House Joints: Steering Water Past
Along a sidewall, a bent L-shaped step flashing is woven in with each course, and a counterflashing or trim board covers the raised leg. Where the eave stops against the house, a kickout diverter goes in, and without one rain runs inside and rots the sheathing.
Masonry chimneys take a base apron, side step flashing and counterflashing grooved into the joints, and a wide stack also needs a cricket upslope to split the flow.
Through-Roof Vents – Upkeep Notes
Standard boots join a flat metal or plastic plate to a rubber sleeve, and years of sun leave the seal brittle and split. The top portion of the flange goes under the uphill shingles, and the bottom margin stays exposed so rain rides over it.
Rubber collars commonly split long before the field gives out, and new boots are standard whenever the shingles are replaced.
Where Slopes Crest: Homemade Shortcuts
Each hip and the ridge get a row of cap shingles across the joint, and a dimensional line comes with its own heavier companion product. Improvised pieces from cut tabs are lighter and thinner, and in winter at the colder end of our territory the fold is prone to cracking.
A ridge vent often runs beneath the cap row, and longer nails are needed to reach through it into the deck.
Breathing Room Above the Ceiling – Blocked Paths
Air should be drawn in along the eaves through soffit openings, and the ridge releases it. Blown fill crowding the corners can cut off movement, and foam or cardboard baffles hold a channel clear.
An attic with poor airflow runs hot under the decking, and it traps humidity that drifts up from the living space. At the colder end of our territory, frost can coat every protruding nail, and the melt soaks the insulation by afternoon. Two kinds of exhaust on one attic may work against each other, which leaves the eaves without movement.
Regional Demands – Storms and Algae
The towns we cover run from hard-freeze country to places that barely see frost, and each setting wears on asphalt differently. At the coastal end of our territory, a hurricane can drive powerful gusts for many hours, so a high-wind pattern with more nails is specified. Long seasons of strong sun dry out the oils in the coating, while muggy weather encourages dark streaks.
At the colder end of our territory, freeze and thaw cycles pry at every small crack, and heavy snow adds weight on top of that.
Ice From the Sky – Marks on the Surface
At the colder end of our territory, hail comes through often enough to plan around, so shingles designed to resist impact are widely sold. Where a stone lands, the granules break away in a round mark, and a heavy blow may fracture the fiberglass below.
Impact ratings come from a laboratory test that drops steel balls on the shingle, and the stronger lines come through in better shape. Rubber-modified asphalt is common in these designs, and that mix stays flexible in the cold.
Gusty Days: Folded Tabs
Uplift concentrates at the outer margins and the corners, and a shingle no longer stuck down lifts again and again. A tab flipped over by a gust carries a scar across it afterward, and the break in the mat will not heal. A shingle hurt like that is replaced with a new one, while an unfolded one can be sealed again with roofing cement.
Blown-off tabs leave the underlayment uncovered, and ultraviolet rays wear it down fast.
Stains and Green Growth: Slowing the Return
The inky bands seen on so many houses come from algae, and it thrives on the limestone mixed into the asphalt. Growth spreads quickest on shady faces at the humid end of our territory, but the streaking by itself is largely about looks.
Moss is a different matter, since it holds water against the surface, and it works under the edges and raises them. High-pressure spraying rips the grit away with the growth, so a mild product rinsed on softly is the better choice. Copper-bearing mineral is blended into algae-resistant lines, while rain running over a zinc band near the ridge holds the stain back.
Choosing a Color – Blends and Batches
A black or charcoal covering absorbs more of the sun's energy, while a light gray or tan stays cooler. Certain companies make granules designed to scatter infrared rays, and a reflectance rating appears on the data sheet.
Material made on separate days is rarely a perfect match, and makers advise mixing bundles across a slope. A multi-tone blend disguises minor variations well, whereas single-shade shingles make them easier to spot.
Standing on a Slope – Weighing the Risk
A sun-baked covering loses its firmness, so treads rub the stone off in patches. At the colder end of our territory, frozen tabs split beneath a person's weight, while dew that freezes overnight leaves a slippery glaze.
A homeowner is far safer staying on the ground, since binoculars reveal nearly everything worth seeing.
Covering What Is There: The Deck Question
Many jurisdictions let a new roof go directly onto an earlier roof, as long as there are not already two and the base is sound. With the old shingles left where they are, the decking is never exposed, and damaged sheets end up sealed beneath the added material.
Irregularities beneath carry up into the finished roof, and step and valley metal commonly remains in service. A second covering adds weight to rafters that were sized for one, while longer fasteners are needed to reach solid sheathing.
Things That Turn Up: A Short List
- Dark sand gathers where the spouts empty, and the drifts get deeper each season.
- Pieces are missing and bare underlayment peeks through, so wind has broken the bond.
- Bottom corners curl upward, which happens as the oils bake out.
- Straight breaks run through a few pieces, and the mat underneath takes on water.
- Some spots look dull and flat, and the asphalt now bakes in the sun.
- The seal around a plumbing stack has cracked, and drips may reach the ceiling below.
- Metal along a wall has pulled loose, and wind-driven storms can get behind it.
- A stain spreads across the ceiling of an upstairs room, though the entry is often some distance off.
How APC Roofing Approaches Asphalt Shingle Roofing in Denver Metro Area – Plain and Careful
An inspection starts by walking each slope in turn, with a close look at the valleys, vents, flashings and edges. The attic is checked from inside for stains and light coming through, since discolored sheathing shows where water has traveled.
What turns up is photographed, and its size is measured. The results are put in writing in everyday words, with the reasons given for each recommendation. A small fix is described as small, and a worn-out covering is identified as such. The homeowner decides what comes next, from a single repair to a full replacement.
Asphalt Shingle Roofing for Homes in Denver Metro Area: Findings in Plain Words
Call 720-902-6940 to arrange a visit.
Mending or Starting Over: Where the Line Falls
Changing a boot, resealing a flashing or swapping a few torn tabs is everyday repair work, and the remaining shingles are untouched. A replacement piece looks brighter than the aged ones around it, and the tone that went on years ago may be out of production.
Brittle tabs on an older roof tear when lifted, so a small job can spread to the pieces next to it. If hard, curled courses run from eave to ridge, a new covering is the sensible answer.
Expected Service Life: What Moves the Number
On three-tab, fifteen to twenty years is normal, while laminated lines often reach close to thirty. Ventilation, exposure and fastening decide where a given covering lands, and heavy weather can end the span ahead of schedule.
Checking the flashings and pipe seals now and then is sensible upkeep, as prompt fixes keep water out of the wood.
For a roofer's opinion on Asphalt Shingle Roofing in Denver Metro Area, get hold of APC Roofing at 720-902-6940. Every slope, edge and flashing gets a close look, and you get the findings in writing and choose.
