How To Shingle A Roof Step By-Step

Table of Contents

Roll out the self-stick underlayment. Stick on the underlayment. Cover the roof with felt paper. Roll on the felt paper. Overlap the ridge. Waterproof your valleys. Fold flashing over the peak. Install the shingles. Working around vents and stacks. Shingle over the vent flashing.

Do you start roofing from top or bottom?

To lay out the design for the shingles, begin at the bottom of the roof and place a tape measure ½ inch from the edge of the roof to ensure the shingles overhang the drip edge. Mark 12 inches up on the roof for the first course of shingles, then mark every 5 inches all the way up the roof to set your reveal.

What are the steps of roofing?

10 Steps to Building a Roof Tear off the old roof. Install the drip edge. Roll out the underlayment. Cover the roof with felt paper. Waterproof the valleys. Apply starter shingles. Install the shingles. Install the flashing.

Do you need a starter strip for shingles?

The starter strip is crucial because it adheres to the shingles on the edges of your roof and protects them from the elements. Without starter strip shingles, a gust of wind would have no trouble sneaking under the shingles on the edges of your roof and blowing them up, and perhaps even off, your roof.

How do you measure a roof for shingles?

To find your roof’s total square footage: Measure the length and width of each plane on the roof (including dormers) then multiply length times width. Add the square footage of each of the planes together.

Do you put shingles on from bottom to top?

When installing shingles, start by laying a narrow row of shingles at the bottom of the roof along the edge. Next, lay the first full row of shingles so they’re directly covering the starter row. Continue laying your shingles horizontally up the roof.

How many nails do you need for shingles?

General Guidelines for Nailing Shingles Install the recommended number of nails per shingle. For Duration® Series shingles, Owens Corning recommends using either a 4- or 6-nail fastening pattern depending on the roof’s slope and building code requirements. In most cases, 4 nails are adequate.

How is roof installed?

How far should shingles hang over drip edge?

Shingles should be installed over the drip edge a minimum of 3/8” (9 mm) at both the eave edge and the rake edge. If the drip edge extends… out from the rakes and eaves (typically called DL Style or D Type), the shingles may be installed flush with the drip edge.

How far should shingles overhang the rake?

The edge of the shingles should hang over a roof between an inch and an inch and a half — or between a half inch and three-quarters of an inch if drip edge flashing is installed. Too much overhang and the shingles could blow off in high winds; too little can allow water to seep into rake or fascia boards.

Are architectural shingles easier to install?

Since an architectural shingle roof is easier to install, is more durable and comes with a better warranty, its lifespan cost is, in many instances, actually less than that of a more basic 3-tab roof.

Does a roof need a drip edge?

Without a drip edge, water may end up beneath the shingles and may cause damage to various parts of the home. Though your home may not have originally had a drip edge installed, drip edges are now required by most building codes across North America to protect homes from damage.

Why do you put the first row of shingles upside down?

The sealant on an upside-down three-tab shingle ends up far too high up the roof to effectively seal the first course of the finished shingles. The proper way to adapt three tabs as starters is to trim the tabs off the shingle along a line across the tops of the cutouts.

How do I calculate sq footage?

Basic formula for square feet Multiply the length by the width and you’ll have the square feet. Here’s a basic formula you can follow: Length (in feet) x width (in feet) = area in sq. ft.

How many shingles do I need for 1500 square feet?

How Many Bundles of Shingles Will You Need. The average bundle of shingles covers 33.3 ft², so three bundles of shingles are needed per square.

How many shingles do I need for 1000 square feet?

Since there are twenty six shingles in a bundle of twenty year shingles (which is fine for starters and edges), divide the result by twenty six. For the number of ridge caps, multiply the length of the hip or ridge by twelve and divide it by five. This house is 1000 square feet. It requires 18 squares of shingles.

How many feet are in a ridge cap of shingles?

You can cap about 35 lin. ft. of ridge or hips with each bundle of three-tab shingles that come three bundles to the square. You can also salvage waste shingle pieces and portions of damaged shingles for use as caps.

Can you use 3 tab shingles for ridge cap?

The ridge cap, the course of shingles on the very ridge of the roof, can be made from available 3-tab shingles. Two simple cuts create three pieces that can be used to finish the shingle project.

Is it better to hand nail shingles?

While air gun nailing might seem faster, a well-trained hand nailer can do it almost as fast. The key difference between the two is accuracy. Hand driving nails into shingles allows for the roofer to place the nail on the proper nail line and then drive the nail in.

How long should shingle nails be?

Proper Nail Application For Asphalt Shingles Nails should have a minimum, nominal shank diameter of 11- or 12-gauge, and a minimum head diameter of three-eighths of an inch. The length of each nail must be a minimum of 1¼ inches long, and for roof-overs, Atlas recommends a nail length of at least 2 inches.

Do you overlap shingles side by side?

When you reach a peak or hip, shingle all the way up the first side (until the reveal portion of the shingles is within 4 inches of the peak) and cut the 3-tab shingles just below the ridge. Shingle the other side and allow these pieces to overlap the ridge by no more than 4 inches.

How do you keep shingles straight?

Keeping the Roofing Line Straight e shingles aligned vertically and horizontally. A chalk line can keep your line straight over long distances and large areas. A chalk line can help eliminate short exposures, waviness and additional antithetical issues.