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MQ Roof understands
what makes up a quality leak-free roof because we pay close
attention to details. A roof is a complete system and so is the
ventilation of the attic. The installation of a roof is a process
that requires quality materials and proper training in installation
techniques. The roofing process requires the skills and knowledge of
a professional contractor. MQ Roof can
answer your questions about the parts of a roof as well as any
questions regarding any area of roof installation techniques.
A good roof keeps out wind, rain, snow, hail, and the sun's
light and heat. To accomplish this, a roof's surface must be
watertight and durable as well as flexible enough to adapt to
temperature changes without cracking or otherwise losing its
integrity. In some areas, roofs must also be fire-resistant. Roofs
vary in their covering materials and design, but most roofs consist
of wood framing, wood sheathing, roofing felt, flashing, and the
surface roofing material.
Roof framing can be simple or
complex, depending on the style and decorative elements. It provides
the skeleton for the covering materials. Roofing felt, a heavy black
paper saturated with asphalt, lies between the sheathing and the
finishing material. It keeps out any water that might seep through
the finishing material, yet allows moisture from inside the house to
escape. Flashing keeps out water wherever finishing material
connects with chimneys, dormers, or other roof planes. Proper
insulation and ventilation beneath a roof is key to keeping a home
comfortable and in protecting the roof's structure from moisture
damage.
A good roofing system requires
proper design, quality materials, quality application, and routine
maintenance to perform
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We've included definitions and explanations
for the components of a roofing system, so that when it's discussed,
you'll know what's involved.
Built-up Roof A low-slope or flat
roof covered with alternating layers of roofing felt and hot-mopped
asphalt and topped off with a layer of gravel. Cornice The wood or metal finishing at ends
or edges of building, including a fascia, frieze, or rake. Counter Flashing The flashing that is
embedded, or attached, and sealed at its top in a wall or other
vertical structure and is lapped down over base flashing.
Courses
Horizontal rows of shingles or
tiles Drip The strip of metal
extending out beyond the eaves or rakes to prevent rainwater from
curling around the shingles back into the wooden portion of the
house. Eaves The lower edge of a
roof (often overhanging beyond the edge of the house). Eave, Ice, and Snow Guard A 3-foot wide
rubber membrane adhered to the sheathing at the roof's edge that
attempts to stop migrating water from entering your home during
severe ice dams. Felt The
bituminous paper used by roofers, usually made of a combination of
asphalt and either paper or rags. Fascia
A decorative board extending down from the roof edge
either at the eave or at the rake. Flashing
Sheet metal or other material used at various planes on a
roof to prevent water leakage. Frieze Board
A board at the top of the house's finished wall, forming
a corner with the soffit. Rafter
Structural wood, usually slanted, to which sheathing is
attached. Rake The slanting edge
of a gable roof at the end wall of the house.
Ridge
The horizontal line at the top edge of two
sloping roof planes. Sheathing
Boards or sheet material that are nailed to the rafters
to which shingles or other outside roofing materials are secured.
Shingle Flashing Flashing that is
laid in strips under each shingle and bent up at the edge of a
chimney or wall. Pitch (slope) The
number of inches of vertical rise in a roof per 12-inches of
horizontal distance. Soffit The
area that encloses the underside of that portion of the roof that
extends out beyond the sidewalls of the house. Square One hundred square feet of roof or
the amount of roofing material needed to cover 100 square feet when
properly applied. Underlayment The
material (usually roofing felt) laid on top of sheathing before
shingles are applied. Valley Where
two sloping roof sections come together. Valley Flashing The metal or fabric in
valleys, extending in under the shingles on both sides.
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