Question: How Do You Calculate Drip Edge?

How much should shingles overhang drip edge?

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 important is drip edge?

Drip edge is the flashing that protects the edges of your roof, both the eaves and the gable ends. This is great because it protects the wood structure underneath your roofing shingles, an area of the roof you can’t see … but one that’s prone to water damage and wood rot. …

Can you install drip edge after shingles?

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.

Can drip edge be painted?

Yes you can paint the aluminum drip edge and it hold up very well. Just be sure it is clean and paint it with a good exterior acrylic primer and finish with a exterior acrylic semi-gloss house paint.

How does a drip edge work?

The correct placement of a roof drip edge is on top of the roof’s exterior cover directly between the sheathing and the fascia board, which forms a drainage gap between the drip edge and the fascia board. As a result, the drainage improves water flow and protects the roof from potential water damage.

What is the difference between drip edge and rake edge?

Drip edge and rake edge are the first parts of the roof system to be installed. … They form a long, narrow piece of metal, which is installed along the perimeter your Roof Deck. Drip edge goes along your eaves trough areas and rake edge goes along your gable ends.

Should gutters be installed under drip edge?

Your gutter needs to be a few inches under the edge of your roof. … Drip edge gets installed under the first course of shingles and promotes water to run freely from roof edge down into gutter. Without it, water may run down behind your gutter, down fascia board and siding, leading to potential damage.

Do all roofs 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.

How much does drip edge cost?

Drip Edges: $1-$2 per linear foot installed. Inspect and replace drip edges as necessary. Drip edges are added to the roof to direct water into the gutters. Other Damage – Have a professional inspect your eaves for damage before repairing fascia and soffits.

Does drip edge go under or over tar paper?

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.

How is drip edge measured?

Drip edge varies in dimensions but typically the flange that nails to the roof surface is about 2.5″ wide and the vertical edge that directs roof runoff down and away is about 1.5″ in depth. Lengths of drip vary but typically it’s sold in ten foot lengths (120″).

Does a shed need a drip edge?

Water will work its way back up under the edge of your shingles, however, with drip edge properly installed on your shed roof, this damaging water will be re-routed to drop vertically to the ground or gutter instead of permeating into your roof sheeting. … Here’s the right way to install drip edge on your shed roof.