How much wind can shingles withstand

When choosing a roof for your home be sure to consider the risk factors to which you will be exposed. Generally today’s shingle roofs come with technical specifications to withstand 90 mph winds, however you can find roofing products available for areas vulnerable to hurricanes and tornadoes that withstand up to 150 mph. The National Oceanic and Atmospheric Administration notes that structural damage to roofs begins at 50 MPH winds.

The air pressure and force exerted on the roof by the suction created by the wind hits the structures and the force of the wind rips shingles and roof panels off of homes or buildings. Not only weather effects affect a shingle roof, but also a poor installation including the quality of the materials and a roof with its useful life already finished or deteriorating due to lack of maintenance. Your roof should be the main preference when choosing the components, since it depends on them the resistance to natural external elements and the durability according to the proper maintenance to which you submit it.

Common damages and risks affecting a roof

The most recurrent damages are those caused by winds and other weather conditions among them we have: missing shingles, lifted shingles, broken shingles, which require immediate repair to avoid water leaks and with them humidity. There are hidden damages that affect the waterproof capacity of the roof caused by the force of the winds that makes the tiles rise and settle causing the adhesive strips that have the tiles as a sealing element between one layer and another to break or separate, also the nails that hold the tiles loosen which causes them to lose their future resistance against strong winds.
The risks affecting a roof are categorized in case of a roof failure by the level of risk to human life such as roofs of: schools, shelter facilities, sports centers, hospitals. And in the case of the position of a building in relation to a nearby structure because the wind can change speed or direction. Other risks manifest themselves in large, open structures where air flows are interrupted, additions to roofs such as sloping panels, extreme and unusual geometric designs, low walls, all affect the direction, elevation and normal flow of winds.

According to the types of roofs that can withstand winds

Asphalt shingles are commonly effective in coping with environmental conditions. Quality asphalt shingles have a resistance of 110 MPH and meet ASTM D3161, Class F and ASTM D7158, Class H standards, the latter resisting winds of 150 MPH.
Metal roofs, despite the noise they cause during storms, stand out for resisting high winds, withstanding wind speeds between 140 and 180 miles per hour.
Stone-coated steel shingle roofs withstand heavy rains and winds up to 120 miles per hour, are economical and ideal for wet, windy and wildfire-prone regions.
Wood shake shingles when properly installed offer high wind resistance up to 245 mph.
Clay and concrete shingles resist natural elements up to 125 miles per hour, require additional supports for their weight and are ideal for hot, dry climates.

What to look for when the roof is damaged

When your roof has been exposed to winds greater than 45 MPH or more, locate through a roofing specialist signs of wind damage such as:
1-Check gutters for granules or part of shingles.
2-Check for missing shingles on the roof, one proof is that you can get shingle debris in the yard or around the house.
3- On a flat roof, wind damage can lift it, tear it and damage the roofing.
4- Large exposure to wind can cause cracks that expose your home to leaks and moisture.
5- If the chimney looks crooked, the seal around the chimney may have been broken, allowing water to enter.
6-External and internal signs such as water stains, lifted paint, discoloration of walls, leaks.

How to act when the roof is damaged

The first thing to do is to inspect the roof and take pictures of any damage you find such as raised shingles, broken seals, water leaks, loose fasteners, most wind damage is covered by homeowner’s policies, call your insurance advisor to initiate the claim process and keep you informed of the steps to take once the insurance company responds.

Look to your trusted builder for advice, support and a quote to professionally and responsibly solve your problem. If you’re in the market for new roofing in Bethel Park PA, turn to Pittsabana Contracting Services LLC. This local roofing company employs team members who are certified by CertainTeed and committed to delivering premium service on every job, from repairing storm-damaged commercial buildings to fully replacing residential roofs. Call (412) 580-6567 to speak with a friendly staff member to schedule service or visit the website to learn more about how they’ll help you.

Anti moss strips , why not use them?

Zinc strips are often recommended and marketed as an effective method of controlling moss growth on roofs because zinc strips slowly release zinc particles when exposed to rainwater, which allows moss and other organics that grow on roofs to die. This benefit typically lasts up to five years, studies have shown that zinc strips are not as effective as required as they show effectiveness below 5 to 15 feet below a strip, which requires multiple layers of strips for effective control, which in turn creates a poor visual appearance of the roof exterior. Below we will describe whether zinc strips work and methods to prevent moss growth on roofs.

Function of zinc strips

The deterioration of the roof and its preservation are affected by simple elements of plant life such as moss, materials such as zinc, galvanized steel and copper being poisonous eliminate plant life that puts the health of the roof at risk, to control the moss on a pitched roof zinc strips are placed near the top of the roof where it seeks to control the growth of moss, as rainwater runs over the roof this carries metal molecules that make the moss die when it absorbs moisture that is the food of moss.

They do not recommend the installation of zinc strips.

For the Asphalt Roofing Manufacturers Association the installation of zinc strips are responsible for water leaks, because when zinc strips are installed under a shingle strip by breaking the seal, or over asphalt shingles, by either installation method, the exposed nail holes dent into the soft metal and expand, creating erosion in the roof and water leaks, also the zinc exposed to the environment begins to oxidize and make the zinc strips less effective, shortening the life of the roof. Therefore they are not recommended.

Zinc causes roof deformations

After about five years the zinc begins to show dents on its surface, which weaken or deform it, this consequence prevents the flow of water from running evenly over the roof, the accumulation of water saturated with metals creates a coating of particles under the less hollowed points that makes it less effective.

A large security team is needed

Safety is a serious element that must be considered in all types of work and even more so on roofs due to the risks to which workers are exposed. Working at heights greater than 10 feet requires complete safety equipment that guarantees the lives of the people who will be performing the installation. Certified anchors, rope grabs, harnesses, safety ropes and body harnesses must be available.

Environmental risks

Both zinc and copper are highly polluting and environmentally harmful materials, and in high quantities can kill fish. This pollutant factor is detrimental to the long-term health of the roof.

How to control moss?

There are several methods that control moss, among them are proper and periodic roof maintenance including cleaning, pruning of nearby trees overhanging the roof and keeping 6 feet between the roof line and the trees, choosing metal roof types, chemical treatments every 4 to 6 years. The planned combination of roof maintenance and regular chemical treatments will help keep your roof in good condition and free of moss.

If you’re in the market for new roofing in Allegheny County, PA, turn to Pittsabana Contracting Services LLC Roofing Contractor in Ross Township, PA This local roofing company employs team members who are certified by CertainTeed and committed to delivering premium service on every job, from repairing storm-damaged commercial buildings to fully replacing residential roofs. Call (412) 580-6567 to speak with a friendly staff member to schedule service or visit the website to learn more about how they’ll help you.

Synthetic felt roof underlayment : Pros and Cons

Roof underlayment is a strong protective layer or barrier that goes between the roof deck and under the roof deck. It is out of sight and often goes unnoticed, but it is a very important component, because in addition to providing longevity to the roof it serves as insulation against damage from the outside elements and protects the home from moisture, water and debris in the event of a storm that dislodges part of the roof. Depending on the type of underlayment you use for the roof, the performance depends. Both synthetic underlayment and felt underlayment are required to stay within Building Code requirements.

Synthetic and Felt Roof Underlayment: Pros and Cons

Each type of underlayment both acrylic and felt has its advantages and disadvantages, the use of them will depend on the geographical area where the house is located, the materials used for the roofing, the design of the roof, the contractor’s suggestion according to the convenience and finally the budget.


Being made of polypropylene laminates or polyethylene plastic , it offers greater longevity and resistance to water, moisture and other external elements of nature such as mold, it is a lightweight material its presentation is in wide and long rolls which translates into greater performance of installation time, It is resistant to tearing, boot traffic which makes it safer when walking on the ceiling, it is suitable for prolonged exposure to UV rays, its weight is 40 to 100 grams per square meter, its cost varies between 17 and 25 cents per square foot. Synthetic underlayment can last between 25 and 40 years.
Disadvantages: It is not a standardized product so it can have different performance levels depending on the manufacturer, its cost is higher for the advantages it offers.

Felt underlayment for roofing

Advantages: it is one of the oldest roofing products on the market, it is manufactured by saturating paper or fiberglass with asphalt, it is available in two types of felt 15, its weight is from 7.5 to 12.5 pounds, its cost is 5.5 to 10.5 pounds. 5 pounds, its cost is 5 cents its weight and cost calculated per square foot of roof and 30 felt whose weight is 16 to 27 pounds, its cost is 10 cents, its weight and cost calculated per square foot of roof, the 30 felt is stronger and offers greater resistance to tearing at the time of installation, its cost is lower compared to synthetic underlayment, for this reason it is the required by owners concerned about the budget of their home.


At the time of installation it cannot be left exposed for more than a few hours as the heat can dry the material or leach oils, allowing greater exposure to moisture and water absorption, which wrinkles the felt producing unevenness in the roof to place the tiles, it is prone to tearing against winds, its weight makes it difficult to drag the rolls to the roof, in terms of amount of coverage it is less material per roll, which implies greater seams to join the rows and greater weight to cover areas, its surface is slippery.


Seen the characteristics of each type of underlayment, the biggest disadvantage of synthetic underlayment is its cost, despite its competitive prices compared to felt underlayment, however making a general balance of its advantages and seeing the quality of synthetic underlayment, the choice of this ceiling could save you money and inconvenience for your peace of mind and future expense planning.
If you still have doubts or questions about it, do not hesitate to call us to provide you with the required support and advice.

How to Maintain an Asphalt Shingle Roof

Proper roof maintenance will ensure that its components, such as asphalt shingles, panels and the layers that make up the roof, have greater resistance to the harsh elements of nature, increase the life of the roof, save you money on unexpected repairs, save energy due to greater efficiency, look more attractive, and provide security for you and your family.

Things to keep in mind when maintaining an asphalt roof

Inspect the roof on a regular basis

The safest way to inspect the condition of a roof is to have a professional roofer, as a specialist will make sure to identify in detail the entire roof area, taking into account all the components and giving a report on the problems that need to be addressed. We recommend roof inspections at least twice a year, taking into account the fall and spring seasons.

Perform debris removal

This should be done on a regular basis taking into account all roof components and roof systems. Remember that weather conditions affect roofs on a larger scale. Remove all debris and debris from shingles, vents, flashing, gutters, solar panels, skylights, so that water can run off unhindered to avoid future moisture and leaks that may damage the roof.

Take into account the tree branches near the roof

It is common to find on roofs the remains of branches of nearby trees or plants that grow because of the humidity in that area, the remains of debris that are dragged by the air or storms, which represents a danger because of the damage they can cause both to the tiles that may suffer breakage and to the roof in general, the ideal is to keep cutting branches that are near the roof to avoid damage to it.

Clean the gutters

Gutters free of all dirt will guarantee a roof in good condition, both gutters and downspouts require maintenance to prevent corrosion and sagging, this maintenance includes application of roofing cement or patching and caulking.

Ventilated Roof

A roof with adequate all-weather ventilation, especially during the winter, prevents moisture from accumulating and damaging the roof, good insulation allows for proper energy consumption and no energy waste.

Flashing Maintenance

To maintain a roof in good condition, caulking and flashing are of valuable importance because it prevents roof leaks that are generated because there is water obstruction by the roof tiles, with caulking the cracks in the flashing are sealed where water runs causing damage to the roof.

Don’t delay in making roof repairs

Your home’s first defense against the weather elements is the roof. Keep a close eye on the roof, as missing or broken shingles can leave the roof vulnerable to wind that can tear off sections of the roof, which can expose your home to any external elements that affect the structure of the house and its safety. If you want to keep an asphalt roof in good condition you should check and maintain it, if it does not meet this requirement, you may find signs that indicate you should repair or replace the roof without delay and out of budget.

In Pittsabana we offer you the support you require without having to worry, since we are specialists in the roofing area. We attend you through our contacts. If you’re in the market for new roofing in Allegheny County, PA, turn to Pittsabana Contracting Services LLC Roofing Contractor in Ross Township, PA This local roofing company employs team members who are certified by CertainTeed and committed to delivering premium service on every job, from repairing storm-damaged commercial buildings to fully replacing residential roofs. Call (412) 580-6567 to speak with a friendly staff member to schedule service or visit the website to learn more about how they’ll help you.

Pittsabana Contracting Services LLC