Archive for November 27, 2016

Learn to Measure Your Roof and Save Money!

November 27, 2016

As a homeowner, it is important to know how much a contractor may charge for the repair or replacement of the roof of a home. An owner should know how to measure the size of the roof as well as the length of the valleys, dormers, and ridge vents to compare against any estimates that are received.

Armed with the knowledge about basic measurements, a homeowner can approximate the amount of material needed for the replacing of a roof. That knowledge can save a homeowner from the result of a miscalculation as anyone can make mistakes when calculating an estimate, even expert contractors. Knowing this simple calculation result, a homeowner can correct a contractor on the spot if there are any major discrepancies on the square footage of the roofing area.

Basic Mathematics

When measuring the roof, the result is expressed in squares. In geometry, one square is equivalent to one hundred square feet (1 = 100 square feet). So, to determine the area of a triangle, this simple geometrical equation must be remembered: area is equivalent to the length of the base times the height of the triangle in feet divided by two. The equation should look like this; (b x h)/2. For example, 40-foot (h) x 40-foot (b) divided by 2 is 40 x 40 divided by 2 equals 800 sq. feet or 8 squares.

In order to get the correct estimated measurement of the house-top, one needs to have an aerial view or rough sketch of the roof and divide it into different sections.

Step 1: Measuring Overall Area

One must first draw a diagram of the house-top. A person must get a 100-foot measuring tape, a pencil, some paper and an assistant. The assistant will hold the tip of the measuring tape while the homeowner checks and records the measurements. The sketch should include the ridge, valleys, dormers, vents, chimneys and pipes. Begin at one corner on a side and measure the dimension of the exterior walls, measuring both width and length. Most roofs have an area that extends out to cover and protect exterior walls and side known as overhangs. The overhang must be measured and added to the completed dimensions. Then the measurement should be transposed onto the diagram.

Step 2: Measuring the Pitch

The pitch is basically the steepness of a roof and is measured by determining the rise in inches per every 12 inches of horizontal length. To arrive at a multiplier that will figure into the calculations, pitch can be divided into 3 categories: low, medium and high. Low pitch is a roof that can easily be walked and the multiplier would be 1.15 to 1.25. Medium would be a rise of 5 to 9 feet for every 12 inches and would result in a multiplier of 1.25 to 1.4. The high or steep slope category covers a rise that is greater than 9 feet for every 12 inches and gives a multiplier of 1.7 and higher.

Step 3: Final Computation

After getting the dimensions, roof pitch and multiplier, the size of a homes house-top can be calculated. Take the computed overall area in square feet and multiply it by the pitch multiplier. For example, the ground dimension is equivalent to 1,104 square feet and the roof pitch is low at 1.15. The resulting equation should look like: 1,104 x 1.15 = 1,270 sq. feet. Therefore, the estimated amount of material needed for the roof is 12.7 squares. It can also be calculated by looking at the original square footage of 1,104 or 11 squares x 1.15 = 12.65. Either calculation represents the estimated squares needed for the replacement job.

Knowing how to measure a roof can give a homeowner the ability to make sure any estimate given by a contractor is very accurate and this can calculate into a large monetary savings. So learn the right way to measure that house-top and translate that information into accurate replacement cost!

About Slate Roofing Systems

November 18, 2016

There are many different types of roof and shingle systems. One of them is slate roofing. Known for its distinctive look and tough durability, slate roofs are seen in many different types of architecture, including residential roofing. These roofs are physically heavier than those made with asphalt shingles. Roofing contractors have found a growing popularity in slate roof systems, which have become more affordable and stylish in recent years.

Colors The color of the materials depends on where the rock is mined. Because it is naturally occurring, the geographical origin plays a major role in color. The system is made of tiles in one color or a mixture of colors. Core, or basic, colors that homeowners might choose from when selecting a roof might include gray, black or red. Accent colors used often include purple, green, or a different shade of gray. Some are solid in appearance, while others are blends and have natural streaks or a marbling effect. The type of light and angle that strikes the slates surface slightly alters the colors appearance throughout the day. When ordering materials for a roof, they should be taken from the same product batch to ensure similarity in color and texture that blends well.

Material Slate is a type of rock found in nature. It comes from quarries worldwide. While the location of the material does not affect its quality, it can affect its color and texture. Synthetic slate is produced, but is not as durable or genuine as the naturally occurring rock. IT is installed in a tile-like fashion, with no cracks or crevices in between the pieces.

Durability One of the main factors in its popularity is the materials durability. It is not affected by harsh weather conditions, such as rain, snow, sleet or heat. It may fade slightly over time due to regular exposure of ultraviolet rays. This is expected and is what gives this type of roofing system part of its distinctive look. When a roofing contractor installs the system, each slate is tightly locked into place with special hangers and battens. A layer of protection beneath the slate prevents moisture and leaks, so the attic and other parts of the home stay dry.

Attachment Unlike asphalt shingles, the slate roof is not nailed into the structure. It is hung. Sturdy braces are used to support the roofs structure. With more modern innovation comes the ability to use support structures that are equally or more durable, but weigh less.

How to Cool a School Cafeteria With Portable Air Conditioners

November 9, 2016

Portable air conditioners are a practical alternative to central units; however, how a portable A/C cools a room is different than how central A/C cools a room. Cafeterias can pose several problems to portable air conditioner units including the size of the room, the number of windows in the room, and the number of children in the room. Here is a quick guide to explain how to cool a school’s cafeteria using portable air conditioning units.

Determine the number of units needed

Many portable air conditioners will detail the what size room it will effectively cool. As a general rule, the more powerful A/C units will keep larger rooms cool. However, it may not always be a good idea to buy one or two powerful A/C units and locating them in a cafeteria. If a lunchroom has a lot of windows, consider buying multiple weaker units to cool the room at different angles all at the same time. Because weaker units are cheaper than powerful units, this will save money for the school’s budget.

Determine the number of children in the room

Body heat can hinder an air conditioner’s performance. If there are a lot of children in the same room for a long time, body heat can collect and heat the room 10 degrees Fahrenheit or higher. It may be necessary to purchase high powered units to compensate for the collection of body heat.

Start the units before the children arrive

Thirty minutes before the children arrive for lunch, turn on all the air conditioner units. This will give the room enough time to cool down without wasting a lot of electricity. If the kitchen is attached to the main cafeteria, start the A/C units 30 minutes before the cafeteria workers arrive. Kitchen ovens and stove tops can also add to the overall heat in a cafeteria.

Consider insulating

Insulation is what keeps cool air in and hot air out. Insulation can be expensive, but it can greatly reduce the amount electricity needed. A one-time insulation installation can reduce the operating costs in a school’s budget. Some companies offer discounts to school systems. Seek out a company that will work with a school’s budget and payment time frame for special services and operating costs.

Portable A/C units can be great benefits to a school, but it is important to take several considerations to mind. With a little preparation and creative thought, portable air conditioning can effectively cool a cafeteria and reduce the operating costs caused by central units.