Do you have to remove old shingles?

Do you have to remove old shingles?

If any areas of the roof have become severely damaged, it's usually better to remove the old shingles and start from scratch. If you're going to add a roof on top of an old one, it's a good idea to remove any loose shingles and apply a new layer of 30-pound roofing felt before laying the new shingles.

Do not remove Irv shingles?

IKO's roofing shingles feature an adhesive strip on the back; this prevents the shingles from sticking together when storing and shipping bundles to the worksite. So for those wondering whether they should you remove the plastic strip on shingles: It's not necessary as it has no function in application.

How hot does it need to be for shingles to seal?

Shingles won't seal unless they warm to an ambient temperature near 70 degrees.

How do shingles stick together?

Shingles are still held to roof decking with nails, or in some jurisdictions where it is allowed, staples. The adhesive is there not to glue the shingles to the roof deck, but to glue them to each other. By doing so the tabs of the shingles are not as vulnerable to wind getting under them and peeling them back.

What is the purpose of a shingle starter strip?

Starter shingles (also known as starter strips) are a key component to your new roofing system. A starter strip is an asphalt based shingle utilized to waterproof the eave and rake edges of your home during a re-roof.

How many shingles do I need for a ridge cap?

You can cap about 35 lin. ft. of ridge or hips with each bundle of three-tab shingles that come three bundles to the square. You can also salvage waste shingle pieces and portions of damaged shingles for use as caps.

Are architectural shingles better than 3 tab?

In general, architectural shingles may cost about 25% more than 3-tab shingles, but they are considered the standard for higher-end homes. Due to their quality, look and desirability, architectural shingles may the best type of shingle to use if you want to increase the resale value of your home.

Do shingles flatten over time?

New Shingles Not Laying Flat. Before new shingles seal down, they can look a little lumpy and uneven, but once the roof gets hot enough, they should soften, flatten and form a permanent seal.

How do I put the top down on my roof?

The edge of the shingles should hang over a roof between an inch and an inch and a half — or between a half inch and three-quarters of an inch if drip edge flashing is installed. Too much overhang and the shingles could blow off in high winds; too little can allow water to seep into rake or fascia boards.

Can you tar over shingles?

Spreading roofing tar works best where the shingles are leaking around flashing. You brush or spread it on manually and can be used anywhere that a spray-on sealant is used. The tar fills cracks, crevices and separations around flashing. It is easy to work with, but it is also messy.

What to use to glue down shingles?

You can sometimes repair this problem for a short while gluing the shingle down with a bituminous roof sealant in a caulk tube, but it's not a permanent solution. You'll use a caulking gun, apply some roofing sealant to the curling shingle and push it down. You'll then weigh it down with a brick for at least 24 hours.

How do you stagger shingles?

The trick to laying asphalt shingles is to stagger the seams between courses. Begin shingle application at the lower left rake of roof. Continue the first course across roof with full shingles laid flush with the starter strip and fastened with four nails, placed as specified.

Where do you nail shingles?

NAILING: Use galvanized (zinc coated) roofing nails, 11 or 12 gauge, with at least 3/8" diameter heads, long enough to penetrate through plywood or 3/4" into boards. Use 4 nails per shingle placed 6-1/8" above the butt edge, 1" and 13" in from each end and 1/2" above each cutout.

How do you install shingles over existing roof?

Do Shingles Have A Shelf Life? Theoretically, there is no shelf life on shingle products in the bundle. than one year. Should a shingle be used after one year's storage, care should be taken while handling as the shingle may have stiffened over time.

How do you peel back shingles?

Overall, architectural shingles would work well as ridge caps since they are extremely resistant to almost every element of weather and can blend well with the other shingles of your roof. Ridge caps are one of the most important parts of the roof since it is one of the first parts of the roof that people will see.

Can you put new roof shingles over old ones?

The answer is yes, you can lay new roof shingles over old ones. But before we get started, one thing must be clear: adding new roofing over old (sometimes called a "re-roof") is possible only with asphalt shingles (also called "composition shingles").

Are architectural shingles easier to install?

They don't look as nice as architectural shingles, because they are 2-dimensional, while architectural shingles are 3-dimensional. Part of the reason for this is that it is easier to install an architectural shingle properly.

Can you glue shingles down?

Roofers don't "glue down" shingles. Shingles have a built in strip of adhesive (commonly referred to as a tar strip because it used to be tar, not adhesive). Make Sure you dont lift them up too high, or you could damage the shingle where its nailed.

What goes on a roof before the shingles?

Before the shingles are ever nailed onto the roof, a layer of felt paper is applied to the wood sheathing. The felt paper on top of the sheathing acts as a moisture and vapour barrier for your roof. That's essential, because rain and moisture can actually get under your shingles.

How do you install Owens Corning starter shingles?

Simply apply a single course of Starter Shingle Roll along a clean, dry and smooth eave line or rake edge, after removing the release sheet. Apply the Starter Shingle Roll directly onto the WeatherLock™ underlayment or a layer of felt. Once it is pressed into place, you're ready to begin shingle installation.

How do I identify roofing shingles?

Take a sample shingle to Home Depot or another home-improvement store if you can't find anything on file. Ask the staff if they can match the shingle to the brands they have in stock. Alternatively, take the shingle to a local roofer, or ask a representative to stop by and see if he can identify the brand.