Flashing is an integral part of the Water Restrictive Barrier or WRB system. It prevents air and water from infiltrating the home and improves energy efficiency. Mitten distributes a complete line of flashing products tailored to be used in many home exterior project applications.

1. Product Knowledge Course
Introductory Level
FLASHING 101

2. Flashing is an integral part of the Water
Restrictive Barrier or WRB system.
It prevents air and water from infiltrating
the home and improves energy efficiency.
Ply Gem distributes a complete line of
flashing products tailored to be used in
many home exterior project applications.
Objectives
______________________________
By the end of this course, you will
understand:
1. Purpose of Flashing
2. Common Types of Flashing
3. Henry Flashing
4. Protecto Wrap Flashing
5. DuPont Flashing
6. Ordering and Support
Flashing 101

3. Flashing refers to thin pieces of impervious material
installed to prevent the passage of water into a
structure from a joint, or as part of a weather-resistant
barrier (WRB) system.
Before the availability of sheet products for flashing,
carpenters used creative methods to minimize water
penetration:
• Angling roof shingles away from the joint
• Placing chimneys at the ridge
• Building steps into the sides of chimneys to throw
off water.
The introduction of manufactured flashing decreased
water penetration at obstacles such as windows,
doors, chimneys, vents or pipes thus making
buildings more durable and reducing indoor mold
problems.
Purpose of Flashing

4. Flashing types are named by their location of uses or shapes:
• Wall flashing may be embedded in a wall to direct water that has penetrated the wall back outside.
• Sill flashing - A concealed flashing placed under windows or door thresholds to prevent water from
entering a wall at those points.
• Through wall flashing - Spans the thickness of the wall and directs water to weep holes
• Cap flashing (drip cap) - Often used above windows and doors
• Drip edge – A metal used at the edges of a roof
• Step flashing – Pieces of flashing material which overlap each other in "steps"
• Counter flashing – Covers a base flashing
• Valley flashing – In the valley of two intersecting roof planes
• Roof flashing is placed around objects which protrude from the roof of a building to deflect water away
from seams or joints and in valleys where the runoff is concentrated.
A structure incorporating flashing has to be carefully engineered and constructed so that water
is directed away from the structure and not inside.
Flashing, improperly installed, can direct water into a building and lead to rot, mould and other
undesirable issues.
Common Types Of Flashing

5. Who is Henry Company?
Henry Company is a leading innovator of Building Envelope Systems and
understands the principles of integrating air/vapor barrier, roofing and waterproofing
systems to ensure superior building performance.
For more than 75 years, Henry has been the trusted source for complete Building
Solutions.
Henry Company

6. Blueskin WB
Blueskin WB25 Window and Door Flashing is a self-adhering
membrane consisting of an SBS rubberized asphalt
compound, which is integrally laminated to a blue-
engineered film.
• The membrane is specifically designed to be self-
adhered to a prepared substrate
• Excellent adhesion to prepared substrates of concrete,
concrete block, primed steel, aluminum mill finish,
anodized aluminum, galvanized metal, gypsum board
and plywood
• Impermeable to air, moisture vapor and water
• Easy to install peel and stick application, no flame
required
• Membrane is self-sealing when penetrated with self-
tapping screws or nails
• Available Sizes
• 4”, 6” 9”, 12”, 18”, 36” x 50’
Henry Company

7. Who is Protecto Wrap?
Protecto Wrap Company has been manufacturing waterproofing membranes since
1952 and has built a sound reputation for producing some of the highest quality
waterproofing systems available.
Located in Denver Colorado, Protecto Wrap offers design consultation and field
technical support for all product lines, which include: residential weather barriers,
flooring underlayments and commercial building envelope solutions.
Protecto Wrap

8. Super Stick
A high-performance, high tack, peel and stick air/vapor
barrier tape system used for sealing PVC and
aluminum windows and doors; window and door
openings; and as a full coverage air vapor barrier
membrane.
• Can be installed in extremely cold (-20° F / -28° C)
or hot weather conditions
• No primer needed
• Can be applied to damp surfaces
• 12-month UV Exposure
• Easy to install peel-and-stick application
• Creates total air and water seal
• Will not react with plasticizers
• Self seals around nails, screws, and staples
• Available sizes:
• 3”, 4”, 6”, 9” X 75’
Protecto Wrap

9. Who is DUPONT?
DuPont is a science company dedicated to solving challenging global problems,
while creating measurable and meaningful value for its customers, employees and
shareholders.
DuPont’s portfolio of products, materials and services meets the ever-changing
market needs of diverse industries in more than 90 countries.
DUPONT

10. Flashing Tape
DuPont Flashing Tape
• Cost-effective, self-adhered flashing tape for residential windows and doors
• Creates a protective envelope around heads and jambs of rectangular windows and doors
• Helps protect the heads and jambs of rectangular doors and windows from air and water
intrusion
• Made from polypropylene film with a butyl rubber adhesive backing
• Compatible with all DuPont Tyvek air and water barriers and other building envelope products
• 10-year limited warranty
• Available Sizes:
• 4”, 6”, 9” x 100’
Wind-driven rain and outdoor air can find their way into walls around windows and doors.
By helping to seal the building envelope, self-adhered DuPont™ Flashing Tape can help
reduce the risk of water damage, increase building comfort, and improve energy
efficiency.
DuPont Tyvek Flashing Systems

11. DuPont StraightFlash
• Premium durable, self-adhered flashing
• 100% butyl-backed
• For straight jambs and heads of rectangular windows
• Engineered to keep water out around non-flanged and
brick mould windows and doors
• 10-year limited warranty
• Available Sizes
• 4” x 150‘
• 9” x 125’
StraightFlash
Butyl
A brand of synthetic rubber also used
for inner tubes of automobile tires
because of its leak-proof qualities
DuPont StraightFlash VF
• Dual-sided 100% butyl-backed self-adhered flashing
for brick mould and non-flanged windows and doors
• DuPon StraightFlash door and window flashing
provides premium protection against water intrusion
• 10-year limited warranty
• Available Size
• 6” x 125’
DuPont Tyvek Flashing Systems

12. DuPontTM FlexWrapTM NF
• Extendable and self-adhered flashing
• 100% butyl-backed
• Protects window and door sills, penetrations and custom shapes such as round
top windows
• 1 Step Installation – no tricky corner cuts
• 10-year limited warranty
• Available Sizes
• 6” x 75’
• 9” x 75’
FlexWrap
DuPont Tyvek Flashing Systems

13. Flashing Product Lines

14. Ordering and Support
To order, contact Mitten’s customer service department
at 1-888-MITTEN4.
Quiz
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