The building code states that for slopes greater than 8/12 that eave protection is not required. … 5) DRIP EDGE – Although not stated in the building code, manufacturers recommend that you install a drip edge to the eave and gable ends of your home underneath the eave protection.
Do you need ice and water shield and felt paper?
You should install ice and water protector before other underlayments, including roof felt. Around roof features like dormers and chimneys, you should place ice and water protector below flashing.
Where is eave protection required?
Eave protection shall extend from the roof edge a minimum distance of 900 mm (3 ft.) up the roof slope to a line not less than 300 mm (1 ft.) inside the inner face of the exterior wall.
Are Eavestroughs mandatory in Ontario?
The Ontario Building Code | Required Eave Protection (1) Except as provided in Sentence (2), eave protection shall be provided on shingle, shake or tile roofs, extending from the edge of the roof a minimum of 900 mm up the roof slope to a line not less than 300 mm inside the inner face of the exterior wall.Is drip edge a code requirement?
CHANGE SUMMARY: A roof drip edge is now required for asphalt shingles. 2012 CODE: R905. … A drip edge shall be provided at eaves and gables of shingle roofs. Adjacent pieces of drip edge shall be overlapped a minimum of 2 inches (51 mm).
Do you need ice and water shield on steep roof?
Most homes that are situated in the colder regions on the States tend to have steeper slopes to counter snow that might settle on roofs. However, if you’re using low-sloped roofs, then it’s best to have ice and water protection to help prevent ice dams.
What is the most recent Ontario Building Code?
May 2, 2019. The ministry amended Ontario’s Building Code (O. Reg 332/12) to further harmonize Ontario’s Building Code with the 2015 National Codes.
Do you need eaves on a house?
Eaves can have a surprisingly strong effect on the overall look and feel of your new home. … Eaves will also help save you time and money. The overhang created by your eaves will direct water away from the walls and windows during the rain which means less cleaning and greater longevity in your build.Does tar paper go under ice and water shield?
Method 1: Install the ice-barrier membrane according to the manufacturer’s instructions with the drip edge installed on top of the membrane. Then install regular roofing underlayment (tar paper) over the top of the drip edge (and over the ice barrier) and continuing all the way up the roof.
Do roofers need to be licensed in Ontario?Roofing contractors are not licensed by the government but, with a little research, you can find a reliable roofing contractor. Start by: asking friends and family for recommendations.
Article first time published onWhat happens if you dont have eavestrough?
If a home does not have an eavestrough, the water will simply run down the exterior of the walls pool on the ground or foundation. This can erode, weaken, or rust many materials.
Why is eave protection required?
The specific role of eave protection is to prevent water infiltration caused by ice build-up. As described above, the water held by ice dams can cause damage by seeping under the shingles. This watertight membrane, placed under the shingles, collects any water that gets under the shingles behind the ice dams.
What is the minimum roof overhang?
Overhangs can vary from a few inches to a few feet depending on preference; however, the suggested width of an overhang is between 12” and 18” for eaves and no more than 8” for rakes. That said, overhangs can extend as far as 2′ without the need for external supports.
What is the minimum roof pitch for snow?
Roofs in snowy climates should have a slope of at least a 10-degree pitch minimum. A steeper angled roof sheds the snow more quickly. While the angle of the roof helps shed snow, adding too many angles to the roof for a more aesthetic effect could cause structural problems with snow shedding in the wintertime.
Do you install drip edge before fascia?
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.
Does a shed roof need drip edge?
Your shed should be built to withstand the elements. That means repelling water in the most efficient way possible. Installing drip edge around the perimeter of the shed is the best way to keep water out and away from your shed.
What is the code for roof decking?
Roofing code states that a new roof system must be applied on top of a solidly sheathed roof deck (a roof deck with a minimum of 3/8” sheathing, installed with no more than ¼” spacing between sheathing panels).
Where can I find the Ontario Building Code?
You may view a copy of the Building Code online at the Ontario Ministry of Municipal Affairs and Housing website.
What building code does Ontario use?
The Building Code Act, 1992 is the legislative framework governing the construction, renovation and change-of-use of a building in the Province of Ontario.
What is Part 3 of Ontario building code?
The Ontario Building Code | Items Under Part 3 Jurisdiction (1) Tents,air-supported structures, transformer vaults, walkways, elevators and escalators shall conform to Part 3. (2) Where rooms or spaces are intended for an assembly occupancy, such rooms or spaces shall conform to Part 3.
Can you use ice and water shield on entire roof?
You may apply an ice and water protector on your entire roof, but this can also be costly overall. Instead, install it first on critical areas of your roof before you consider covering the whole roof. Install your ice and water protector covering at least 3 feet from the edge of your roof.
Do I need ice guard on my roof?
It’s crucial to have ice and water shield installed on/around certain areas of your roof, like roof valleys, around penetrations, and on roofs that have a 2/12, 3/12, or 4/12 pitch. Because of its importance, every roof needs to have it. There’s also a code if you live in an area above the snow line in the US.
Do you have to use ice and water shield?
As you can see, ice and water shield isn’t always necessary, though in some places, it is required by code. And in areas prone to high winds and snow, ice and water shield becomes very important for the safety of the roof deck below.
Is it bad to ice and water whole roof?
The only real negatives of covering your entire roof with ice & water shield are (1) cost and (2) potential ventilation problems (which are very rare). Ice & water shield acts as a vapor suppressor, so it not only keeps the water out, but also keeps the moisture in.
Can you nail through ice and water shield?
When nails penetrate the ice and water shield on the roof, the rubberized nature of the material creates a gasket effect on the shaft of the nail. … Not only does ice and water shield stop leaks caused by ice dams, but it also stops leaks created by fierce wind-driven rain.
How long does ice and water Shield last?
The original, fully-adhered roofing underlayment, Grace Ice & Water Shield®, now has an extended exposure limit of 90 days. For more than 35 years, Grace Ice & Water Shield® has been the brand that roofing contractors and architects trust most to specify and install on marquee projects around the world.
Is ice and water shield the same as synthetic underlayment?
Synthetic underlayment, like an ice and water shield, is quite a bit lighter, rolls out in large rolls, and is made of polypropylene, fiberglass, polyethylene, and polyester. … While they don’t seal the nails as ice and water shield does it is a superior underlayment when compared to traditional felt paper.
Does ice and water Shield go over drip edge?
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.
What is an rake on a house?
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—The decking material (usually sheets of plywood), which is nailed to the rafters, and to which shingles or other outside roofing materials are secured.
What are Gables on a house?
A gable is the generally triangular portion of a wall between the edges of intersecting roof pitches. … Sharp gable roofs are a characteristic of the Gothic and classical Greek styles of architecture. The opposite or inverted form of a gable roof is a V-roof or butterfly roof.
What is the Eve on a house?
What Is an Eave? An eave is the edge of the roof that overhangs the exterior siding. Parts of an eave include the soffit, which is the underside of your roof’s eaves, and the fascia, the vertical facing board.
