Everything You Need in One Roofing System 
The PRO4 complete roofing system shows how elements of your roof 
work together to protect you and your home. A complete roofing 
system ensures your roof’s optimum performance. 
Besides, roof accessories such as ridge cap roofing shingles can 
ultimately increase the curb appeal of your home. 
Because we’ve solely focused on roofing supplies for over 60 years, 
we’ve been able to set the standard on roofing technology with some 
of the heaviest shingles in the marketplace – designed to keep your 
roof secure against the challenges of ice, rain, hail, windstorms, 
algae and UV rays. 
Along with one of IKO’S QUALITY SHINGLES:
Crowne Slate
Armourshake
Royal Estate
Cambridge
Marathon
Your PRO4 System includes the 
following accessory products:
Ice & Water Protectors
Ice & Water Protectors 
1. Eave Protection 
GoldShield, ArmourGard, 
or StormShield Ice & Water Protectors 
IKO’s Ice & Water Protectors provide a 
second line of defense against water 
penetration due to ice dams or 
wind-driven rain and the costly 
damage it can cause. This product 
is also strongly recommended for 
sealing around vents, low pitch areas, 
ridges, hips, rake edges, chimneys, 
dormers, vent stacks, and skylights.
Underlayment
Underlayment 
2. Underlayment 
RoofGard-Cool Grey Underlayment 
Use our innovative RoofGard-Cool Grey 
synthetic underlayment for total 
deck protection.
Roof Starters
Roof Starters 
3. Roof Starters 
Leading Edge Plus Starter Strips 
Fast, easy and convenient. IKO’s Starter 
Strips are already cut to size saving 
valuable time during the installation of the 
first course of shingles. Compatible with all 
existing IKO Shingles, Leading Edge Plus 
includes a sealant strip at the bottom edge 
allowing for a tight seal.
Ridge Cap Shingles
Ridge Cap Shingles 
4. Ridge Cap Shingles 
Hip & Ridge Plus, Hip & Ridge 12, Hip and 
Ridge or Ultra HPTM ridge cap shingles 
Ridge cap shingles are required where 
roof planes meet, and provide additional 
protection along these high stress areas of 
the roof, enhancing your home’s aesthetic 
appeal by accentuating the roof line.
Shingles alone are sometimes not 
enough to protect your home. 
IKO has developed a superior multi-layered 
roofing system incorporating our 
industry-leading products. 
IKO’s PRO4 Roofing System is setting the 
standard in protecting your home.
RoofGard-Cool Grey 
synthetic underlayment 
For more information about IKO shingles or PRO4 Accessory 
products visit our website or download our brochures at: 
www.iko.com 
Cooler to work on. Lighter to work with. 
Faster and easier to install. Great Performance. 
Great savings in time and money. 
GoldShield 
premium ice and water protector 
Protection where you need it, when you need it most. 
StormShieldTM 
ice and water protector 
“Invisible” protection against roof leaks.

IKO PRO4 Roofing System

  • 2.
    Everything You Needin One Roofing System The PRO4 complete roofing system shows how elements of your roof work together to protect you and your home. A complete roofing system ensures your roof’s optimum performance. Besides, roof accessories such as ridge cap roofing shingles can ultimately increase the curb appeal of your home. Because we’ve solely focused on roofing supplies for over 60 years, we’ve been able to set the standard on roofing technology with some of the heaviest shingles in the marketplace – designed to keep your roof secure against the challenges of ice, rain, hail, windstorms, algae and UV rays. Along with one of IKO’S QUALITY SHINGLES:
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
    Your PRO4 Systemincludes the following accessory products:
  • 9.
    Ice & WaterProtectors
  • 10.
    Ice & WaterProtectors 1. Eave Protection GoldShield, ArmourGard, or StormShield Ice & Water Protectors IKO’s Ice & Water Protectors provide a second line of defense against water penetration due to ice dams or wind-driven rain and the costly damage it can cause. This product is also strongly recommended for sealing around vents, low pitch areas, ridges, hips, rake edges, chimneys, dormers, vent stacks, and skylights.
  • 11.
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    Underlayment 2. Underlayment RoofGard-Cool Grey Underlayment Use our innovative RoofGard-Cool Grey synthetic underlayment for total deck protection.
  • 13.
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    Roof Starters 3.Roof Starters Leading Edge Plus Starter Strips Fast, easy and convenient. IKO’s Starter Strips are already cut to size saving valuable time during the installation of the first course of shingles. Compatible with all existing IKO Shingles, Leading Edge Plus includes a sealant strip at the bottom edge allowing for a tight seal.
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    Ridge Cap Shingles 4. Ridge Cap Shingles Hip & Ridge Plus, Hip & Ridge 12, Hip and Ridge or Ultra HPTM ridge cap shingles Ridge cap shingles are required where roof planes meet, and provide additional protection along these high stress areas of the roof, enhancing your home’s aesthetic appeal by accentuating the roof line.
  • 17.
    Shingles alone aresometimes not enough to protect your home. IKO has developed a superior multi-layered roofing system incorporating our industry-leading products. IKO’s PRO4 Roofing System is setting the standard in protecting your home.
  • 18.
    RoofGard-Cool Grey syntheticunderlayment For more information about IKO shingles or PRO4 Accessory products visit our website or download our brochures at: www.iko.com Cooler to work on. Lighter to work with. Faster and easier to install. Great Performance. Great savings in time and money. GoldShield premium ice and water protector Protection where you need it, when you need it most. StormShieldTM ice and water protector “Invisible” protection against roof leaks.