How do you install a roof step by step?

How do you install a roof step by step?

We’re happy to break the process down for you, step by step.

  1. Tear off the old roof.
  2. Install the drip edge.
  3. Roll out the underlayment.
  4. Cover the roof with felt paper.
  5. Waterproof the valleys.
  6. Apply starter shingles.
  7. Install the shingles.
  8. Install the flashing.

Does asphalt shingle roofing requires an underlayment?

Technically, no, underlayment isn’t 100% necessary underneath asphalt shingles. At least, not in areas unregulated by code! Building codes vary from one region to the next, and most all building codes require felt or synthetic roofing underlayment.

What goes into installing a new roof?

What Goes Into A Roof Installation?

  1. Removing Your Old Roof. If you are replacing your old roof with a new one, then the first step will be to remove the old roof.
  2. Conduct A Roof Evaluation.
  3. Protect Against Rainfall.
  4. Adding The Drip Edge.
  5. Install The Roofing Underlayment.
  6. Install Roofing Shingles.
  7. The Final Cleanup.

How far do shingles overhang drip edge?

¼ to ¾-inch
Asphalt shingles should overhang the exterior edge of the drip edge by ¼ to ¾-inch. Check local building code for drip edge requirements prior to the start of your roofing project.

How many nails should be used per shingle?

4 nails
In most cases, 4 nails are adequate. Position the nails appropriately according to the shingle installation instructions. Align shingles properly to avoid nail exposure.

How far apart should roofing nails be?

Roofing nails are typically placed no closer than 1 inch from the edge of the shingle according to the manufacturer’s specifications.

Should roofing nails go through the sheathing?

Roofing nails should be at the correct length to secure roof coverings. It should pass through the sheathing and should extend 3/8 inches past the bottom of the roof heating.

What do you put under asphalt shingles?

Underlayment. Directly beneath the shingles is something called “underlayment,” also known as “roofing felt.” As you may have guessed, underlayment is usually either made of fiberglass paper or felt. It covers the entire roof deck.

What is the minimum underlayment for asphalt shingles?

for asphalt shingles, NRCA recommends a single layer of no. 15 asphalt-saturated underlayment be used with roofs having slopes of 4:12 (18 degrees) or greater. for roof slopes between 3:12 (14 degrees) to 4:12 (18 degrees), NRCA recommends a minimum of two layers of no. 15 underlayment.

What is flashing in roofing?

What is flashing? Flashing, made from either metal or a rubber membrane, is a part of the system that keeps water from entering through holes created in your roof. All roofs have penetrations: openings or holes in the roof surface which allow for elements like chimneys, flues, skylights and vents.

What is the distance between rafters on a roof?

Standard industry roof rafter spacing is 12”, 16”, 19.2”, and 24” on-center, however other spacing may be used by a Structural Engineer. Depending on all contributing factors though, 16” and 24” are commonly used for most buildings. The wider the space between rafters often results in rafters of greater depth too.

What size should a ridge beam be?

Generally for 2×4 rafters, you should use a 2×6 size ridge beam, for 2×6 rafters, use a 2×8 ridge beam, for 2×8 rafters, use a 2×10 ridge beam, for 2×10 rafters, use a 2×12 ridge beam, for 2×12 rafters, use a 2×14 ridge beam, and so on.

Do you install drip edge before tar paper?

Installing roof drip edge flashing properly The best way is to install the roof drip edge only along the eaves first, then place ice-and-water barrier (in the snowbelt) or felt paper (underlayment) over the drip edge. This lets any water that gets on the roof run down the underlayment and over the drip edge.

Should roofing nails be visible?

The code states that the nails only penetrate when the roof deck thickness is below 3/4 of an inch. To hold snow, ice, and withstand wind, it has to be at least one inch thick plywood. So if you can see the nail heads and the right nails were used, the roof is too cheap to last anyway.

What size of roofing nails should I use?

Roofing nails should be round-headed, sharp-pointed 11-gauge galvanized steel or the equivalent corrosion-resistant roofing nails. Nail head sizes recommended are 3/8-inch to 7/16-inch diameter. Nail heads should be low profile, smooth and flat. Nails should comply with ASTM F1667, Type I, Style 20.