Architectural Shingles Architectural shingles are becoming the most popular choice of shingle for steep sloped roofs. Also known as dimensional and laminate shingle.

Asphalt Shingles Asphalt shingles are the most common roofing material used in Ohio on steep sloped roofs.

Apron Flashing The metal flashing that faces the down the slope of the roof, where the front of a wall or chimney joins the roof.

Bleeder Strip also Rake Starter The starter strip that is installed along the rake.

Brake A device to cleanly bend metal. Can be hand held or weigh several tons.

California Valley A valley is a junction of two sections of roof that slope into each other. A California valley refers to a valley that doesn't use any metal or flashing to join the two sections of roof. This is not the preferred method by knowledgeable because it will not last as long as the rest of the roof.

Closed Valley A valley is a junction of two sections of roof that slope into each other. A closed valley refers to a valley that doesn't use any metal or flashing to join the two sections of roof. This is not the preferred method in our Ohio climate because it will not last as long as the rest of the roof. It could be a cut valley, a California cut valley, or a woven valley.

Chase Chimney Unlike a mortar chimney a chase chimney is essentially a wooden box with a steel chimney crown on top. The box is typically covered with vinyl, aluminum or wood siding. They sometimes are covered in simulated stone.

Cut Valley A valley is a junction of two sections of roof that slope into each other. A Cut valley refers to a valley that doesn't use any metal or flashing to join the two sections of roof. This is not the preferred method in our Ohio climate because it will not last as long as the rest of the roof.

Decking also sheeting : This is the wood that the roofing material will rest on. It is most often OSB (Oriented Strand Board), but can also be plywood or one inch thick planking.

Dimensional Shingles Dimensional shingles are becoming the most popular choice of shingle for steep sloped roofs. Also known as architectural and laminate shingle.

EPDM Rubber Membrane (ethylene propylene diene monomer) Used for flat roofing applications. It is resistant to heat, cold, weather, UV and also does not pollute run off water.

Flashing This is usually metal that appears were the shingle terminates into something else. Examples are; step flashing, chimney flashing, valley flashing, apron flashing, etc.

Felt also underlayment An asphalt saturated organic mat that is applied between the roof deck and the shingles. Type I is commonly referred to as #15 and type II is #30.

Head Lap The portion of an unexposed portion of a shingle that is covered by the row or course of shingles two courses above it.

Ice Dam An ice dam forms when snow melts over a warm roof surface and runs down the roof, only to freeze again over the cold eaves. You can learn more about  leaks caused by ice dams here.

Ice & Water Shield A rubberized asphalt membrane with a peel off backing. It adheres to the roof decking creating a waterproof seal. It is designed to be covered with shingles or other roofing material because it degrades with exposure to UV light. Due to it's consistency, it seals around the roofing nails that would be used to install the shingles on top of it.

Laminate Shingles Architectural shingles are becoming the most popular choice of shingle for steep sloped roofs. Also known as dimensional and architectural shingle.

Lap Seam Where two sections of sheet roofing are sealed at the overllap.

Open Valley A valley is a junction of two sections of roof that slope into each other. An Open valley refers to a steel valley that is open instead of closed with shingles. This is the preferred method in our Ohio climate.

Rake The sloped edge of a shingled roof.

Rake Starter also Bleeder Strip The starter strip that is installed along the rake.

Reroof also Tear Off the removal of the existing roof components down to the structural deck, followed by installation of a completely new roof system.

Sheeting also decking : This is the wood that the roofing material will rest on. It is most often OSB (Oriented Strand Board), but can also be plywood or one inch thick planking.

Shingle Vent II A popular brand of ridge vent manufactured by Air Vent. It is designed to allow ridge cap shingle to be installed over the vent. It allows your roof ventilation to be updated to current specs without looking unsightly.

Soil Pipe This is usually a three or four inch vertical pipe that protrudes the roof and vents the plumbing.

Step Flashing Pieces of metal that roofers use to join the shingles to the side of the wall to prevent water from getting in the interior.

Tear Off also Reroof the removal of the existing roof components down to the structural deck, followed by installation of a completely new roof system.

Thermal Shock The cracking that may occur due to rapid temperature change. The stress of rapid contraction or expansion of the material overcomes the strength of the material.

Three tab shingle(3-tab) also strip shingle These are the traditional style of shingle that have five by twelve inch "tabs".

Tuckpointing The removal of a mortar joint in brick masonary work and the reapplication of new mortar.

Underlayment also felt An asphalt saturated organic mat that is applied between the roof deck and the shingles. Type I is commonly referred to as #15 and type II is #30.

Valley This refers to the junction of two sections of roof that slope into each other.

Woven Valley A valley is a junction of two sections of roof that slope into each other. A Woven valley refers to a valley that doesn't use any metal or flashing to join the two sections of roof. It continues up the slope, the left and the right sides of the roof alternately laid to weave the shingles together. this is not the preferred method in our Ohio climate because it will not last as long as the rest of the roof.

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