What is a drip edge on a flat roof?

Drip edge in roofing is basically an extra piece of material installed at the edge of a roof that prevents water from going up under the roofing materials. … Most roof replacement contractors use this edge as a standard when doing asphalt shingle installation.

What is the purpose of a drip edge?

Drip edge is metal flashing installed at the edges of the roof to keep water away from your fascia and from getting underneath your roofing components. If your roof doesn’t have drip edge, water gets behind your gutters and rots out both your fascia board and roof decking.

What are the edges of a flat roof called?

Eave: A roof edge that extends past the exterior wall line at the bottom of a slope. Fascia: Vertical roof trim located along the perimeter of a building, usually below the roof level, to cover the rafter tails at the eaves and to seal off the top of the siding along the rake; also called gutter boards.

Do you need roof 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.

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Does drip edge go around entire roof?

Drip edge is installed around the whole perimeter of the roof. It is used to hold the underlayments down and create a watertight seal around the edge of the roof. Only the face of the metal is seen and is usually just white one to one and half inch stripe located right under the shingles and above the fascia.

What is roof overhang called?

What Is a Soffit? Your roof by necessity, will often times extend over the walls of your home. This overhang can go by a few names, such as the house eaves or the rafters of your roof. The underside of this overhang, when given a finished appearance, is known as the soffit, which means “something fixed underneath”.

What is roof overhang?

The roof overhang refers to how much the edge of the roof goes beyond the house siding. Under the overhang is a structure known as the soffit. Most homes have an overhang, however, length varies greatly depending on the architectural style of the roof, with slate roofs having longer overhangs typically.

Does drip edge go on first?

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.

Does underlayment go under drip edge?

According to most building codes and manufacturer recommendations, the drip edge should be installed beneath the underlayment along the eaves of the roof. But over the underlayment along the rake edges of the roof. Understanding the proper way to install the drip edge will only get you so far.

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Should drip edge be tight to fascia?

A vertical drip edge lip extends down roughly 1 5/8″ and as Steve points out, should not be set tight against the fascia board or water may run behind the gutter and down the fascia, inviting leaks and rot.

Does drip edge need to be replaced?

Drip edge is the metal flashing that’s installed at the edges of the roof to help control the flow of water away from your fascia and other roofing components. The drip edge has to be replaced when you get a new asphalt roof.

Can drip edge be replaced?

The drip edge is often replaced when new shingles are installed, but it can be replaced at any time. Asphalt roof shingles can become brittle in cold weather, so wait until a warm (but not hot) day to remove and replace eave stripping.