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Archive for October, 2010

Engineered Wood Siding for Steel Buildings

Friday, October 29th, 2010

Engineered wood siding is a cheaper alternative to wood siding for steel buildings. It is manufactured using wood products such as sawdust, wood flakes, wood strips or chips, combining these with bonding agents, and pressing them together into sheets or boards under high pressure and heat. This process creates a product that has superior strength and allows other materials to be introduced to it, including waterproofing and coloring chemicals.

Since it is made of real wood, engineered wood siding does have the appearance of natural wood. The resulting texture depends on the type of wood products used in the manufacturing process. When made with finer shavings, engineered wood siding can have a blocky-looking texture. Using wood strands makes the look and texture closely approximate the look of real wood boards.

Engineered wood siding for steel buildings comes in many forms and finishes. The product comes in many different forms such as shingles, lock lap, shakes, or panels. Typically, it is pre-primed or painted, or stained, often embossed with natural looking wood finish and molded to create the look of traditional clapboards. Engineered wood siding can come with seals to provide protection against moisture and the elements.

Although it just simulates the beauty of natural wood, engineered wood siding is a popular alternative to wood siding for steel buildings, because it offers many benefits.

In general, engineered wood siding is much cheaper and lighter than real wood siding. The bonding agents used during its manufacture, make it stronger than real wood, meaning, it is more resistant to moisture, rot, and termites. Best of all, engineered wood siding is economical and easy to install.

Wood Siding for Steel Buildings

Thursday, October 28th, 2010

Wood siding is another type of siding for steel buildings. You must have noticed that majority of modern sidings all strive to imitate the look of real wood. This is a testament to the material’s beauty and value.

Wood siding for steel buildings can be vertical like board and batten, or horizontal like clapboards, shakes, and shingles. Popular types of wood siding are redwood, fir, cypress, pine, spruce, and cedar. Choices of patterns include traditional clapboard, shakes, shingles, log cabin, shiplap, novelty, and more.

Pine has established itself as the standard for exterior siding. Like spruce and fir, is less expensive than other species of wood. Spruce is used as a substitute for pine since it shares many of pine’s characteristics. However, it comes in longer lengths than pine.

Fir is another economical siding option. It also comes in long lengths and is easy to cut and install. Like pine and spruce, fir takes a finish well. However, they all need regular maintenance because they are not naturally rot-resistant.

Compared with other types of wood, cedar has natural rot-resistant and moisture-resistant properties that make the siding easier to maintain. It is straight, resists splitting and swelling, and takes a stain well. To retain its resistance to moisture and insects, cedar must be treated and maintained.

Due to its rich texture and tone, redwood is another popular choice for siding in all climates. However, redwood can be hard to obtain except in the West where it is grown. Redwood is resistant to shrinking, has natural resistance to insects, and retains its finish well.

Wood siding is beautiful and long lasting if painted or stained every few years. This kind of maintenance prevents the organic material from rotting and deteriorating. Also, it is advisable to clean the wood siding regularly to prevent mold from accumulating. Sealing the siding to make it weather resistant, would add more years to it. Some products are even come with fire retardant treatment.

Metal Siding for Steel Buildings

Wednesday, October 27th, 2010

Metal siding for steel buildings is considered to be strong and resistant to dent. Though it costs a little bit more than vinyl siding, metal siding is much stronger and more energy efficient. Best of all, it can be painted with any color of choice.

Metal siding for steel buildings come with pre-drilled holes around the outside of the sheets. There are a wide variety of siding panels and profiles available in the market, today. Panel widths run from 24 inches, 30 inches, 36 inches, and up to 42 inches. Panel lengths range from 6 feet up to 40 feet.

New and special coatings are applied to make the material rust resistant, prolonging the life of the metal siding and allowing it to require a minimum level of maintenance. Profile types of metal siding include ribbed, corrugated, standing-seam, crimp and variations on each.

When installing metal siding on steel buildings, specific tools for cutting, crimping, and bending are needed. Ensure that the first panel is square to the building and the side seams turned away from the direction of prevailing winds to prevent weather being driven into the siding. Also, be careful not to let the panels seat on the ground because prolonged contact with ground soil will cause the onset of corrosion.

Start from a bottom corner of the steel building and bolt the end of each metal siding sheet to the steel frame. Do the same on the next row and also bolt the sheet tops and bottoms together.

Metal siding for steel buildings is fireproof and non-combustible. Just like “cool roofs”, metal siding has a rate of heat reflectivity that is much higher than wood. Insulation can be applied to the inside of the metal siding for added protection and to further increase the energy efficiency of the steel buildings.

Brick Siding for Steel Buildings

Tuesday, October 26th, 2010

Installing building siding not only enhances the appearance of steel buildings, it also increases the structures’ durability and lessens their maintenance requirements.

Brick is another type of siding for steel buildings. Brick is made of fired clay and it comes in a wide variety of earthly, eye-pleasing colors that can give any structure elegance and style. Brick siding is durable, strong, and long lasting. It is pest and weather resistant and is fireproof.

Brick exteriors of buildings are easy to maintain. They don’t need to be painted and never rots, fades, warps, burns, dents, tears, or become brittle. However, you need to hire an experienced professional to install brick siding, which means that the project is often expensive and time consuming.

Another drawback of bricks is that they are heavy. To use traditional brick for finishing the exteriors of steel buildings, the structures should be capable of supporting the additional weight of the materials.

Brick veneer siding is a veneer with a thin brick surface on the front. Aside from its attractive appearance, it provides high resistance to fire and water penetration. Brick veneer siding also offers low rate of thermal transmission, low maintenance, and increased resale value of steel buildings. Unlike wood or metal siding, brick veneer does not require painting. However, an experienced professional must be hired to install brick veneer siding for steel buildings.

Simulated brick siding panels, on the other hand, are made of lightweight polyurethane that imitate the appearance of bricks. The panels reproduce the texture and character of the materials they simulate. Simulated brick siding panels can be easily applied to any dry, stable surface using screws and adhesive. The good news is that this can be done by a non-professional.

Fiber Cement Siding for Steel Buildings

Monday, October 25th, 2010

Still on the subject of exterior siding for steel buildings, this post talks about fiber cement siding. This siding is manufactured by combining silica, cement and reinforced with wood fibers. Fiber cement siding for steel buildings resemble wood siding when painted, but is less expensive.

Fiber cement siding replaced asbestos shingles mainly due to the concern and safety of asbestos. Fiber cement siding is the choice of customers who want the look of wood siding combined with durability and long life expectancy. It requires minimal maintenance because it offers resistance to termites and decay, which are commonly associated with wood siding.

Fiber cement siding is a non-combustible material that is somewhat flexible. The product is very dimensionally stable and is resistant to shrinking and swelling, cupping, warping, and splitting. Fiber cement siding is cost-competitive with vinyl and hardboard siding.

When combined with exterior siding, steel buildings are attractive and comparable with structures made of traditional materials such as wood. Fiber cement siding comes in a wide variety of styles and finishes that resemble other materials including wood, bricks, and stones.

Fiber cement siding products vary in thickness and density – the higher the density, the smoother is the edge when cut. In general, the thicker and denser the product, the better resistance to UV radiation and sound transmission.

A word of caution: fiber cement siding produces a very fine silica dust when cut with a saw or abrasive blade. Long-term exposure to the silica dust can cause serious respiratory problems, such as silicosis. To prevent this from happening, properly ventilate areas where the product is being cut.

Source: http://en.wikipedia.org/wiki/Fiber_cement_siding

Aluminum Siding for Steel Buildings (continuation)

Friday, October 22nd, 2010

Aluminum siding is the most economical exterior siding for steel buildings. Compared to vinyl siding, it is a good insulator of heat, greatly reducing the workload of heaters and air conditioners.

Aluminum siding is easy to install. The panels are lightweight, making aluminum siding popular for those who prefer to do the installation by themselves.

The best time to install aluminium siding, and for that matter, any other siding for steel buildings, is during summer or spring. It’s always a good idea to check the weather forecast in advance before starting the project.

Prepping the surface

Prior to installing aluminum siding, ensure that the exterior walls are clean and smooth, to achieve a perfect finish. Grime and dirt must be removed. Any protruding nails must be hammered or removed. Holes or any depressions must be filled.

Installing the Underlay

Before the actual aluminum panels are installed, the backing surface has to be smooth and flat. This is the purpose of installing a surface underlay, first. Foam boards are considered the best underlayment for aluminum siding. Install the foam boards over the clean walls and brush down when finished.

Installing and Fastening the Aluminum Sheets

Aluminum panels are installed from the bottom up. For a more efficient installation, start working on one wall and move on to the next only when you’re done. Make sure that the sheets are in a straight line. It is very important to ensure that two adjacent panels of aluminum siding overlap at least two inches with each other, to create a solid and tight barrier.

Aluminum siding sheets are fastened to exterior walls of steel buildings by using aluminum nails that are hammered into factory-made holes, which are conveniently placed in the panels. The nails should NOT be hammered too tightly to make room for thermal expansion.

At the end of each wall, leave gaps measuring 3 to 4 inches for the corner caps. Fixing the corner caps in place is simple. Just slide the rims of the caps under the edges of the two aluminum panels and then nail them in place.

Painting

Just one more step and you’re done. Before applying paint, double check that all panels are firmly nailed. Then apply the color of your choice. Be sure to clean the siding once a year and repaint every 5 or 6 years.

Aluminum Siding for Steel Buildings

Thursday, October 21st, 2010

Aluminum siding is another exterior option for steel buildings. It offers attractive protection to steel buildings, from a variety of weather conditions for more years. The aluminum panels can be coated with enamel to make them resemble different looks including artificial wood surfaces.

Compared to wood siding for steel buildings, aluminum siding is more durable because it never rots, splits, splinters, or cracks. Unlike steel siding, aluminum siding does not rust. It won’t even grow brittle during winter, a common issue with vinyl siding.

Aluminum siding is waterproof and fireproof. Aluminum siding provides all-around weather protection for any steel building. Properly installed aluminum siding prevents damage to interior walls caused by direct contact with moisture brought about by rain or snow. Moisture causes growth of molds or harmful bacteria – infestations that are very difficult and costly to cure.

Compared to other exterior sidings for steel buildings including bricks, stone, or wood, aluminum siding costs less. It can last for several decades and only requires minimum maintenance. Aluminum siding exteriors need to be cleaned only once every year and painted once in maybe 5 or 6 years.

The paintability of aluminum siding has been one of its advantages over its nearest rival, vinyl siding. Once vinyl siding fades, restoring it to its original luster is very difficult. On the other hand, aluminum siding can be painted over and over again, to make it look like new.

For repainting aluminum siding, it is important that the surface be properly prepped. Use only paint that is specially made to adhere to aluminum.

One disadvantage of aluminum siding is its susceptibility to blemishes caused by impacts. For scratches and minor dents, the surface can be cured by sanding and repainting. For major dents, damaged panels have to be replaced.

(to be continued)

Vinyl Siding for Steel Buildings

Wednesday, October 20th, 2010

Steel buildings continue to dominate the construction industry due to the many benefits and advantages they provide, unmatched by other traditional buildings methods. Since prefabricated steel buildings are computer engineered, customers are assured of their structural soundness and fast construction time.

You may have been into one of these metal structures but since modern steel buildings can be combined with various exterior materials, it is very hard to distinguish them from conventional structures.

One common exterior siding option for steel buildings is vinyl because it usually costs less, and more economical to install than most other siding materials. It is made of durable plastic, making it resistant to scratches, flaking, peeling, and dents. Vinyl is available in a number of styles and colors to choose from.

Vinyl siding strips are manufactured to mimic almost any material including wood, veneer, plastic, or stone. In fact, the resemblance is very strong that it’s very hard to tell the difference. Vinyl strips are textured, not flat. That’s why they look authentic.

New technology in the manufacture of vinyl siding strips eliminates the need for repainting every four or five years. To preserve the color, it should be hosed down or washed at least once a year, instead.

In addition, new methods of attaching the product to the base prevent it from coming off during strong winds and pounding rain. Vinyl’s sealed surface can withstand practically any weather condition.

Just like any other exterior finish for steel buildings, vinyl siding has its disadvantages.

Vinyl siding is manufactured primarily from PVC (polyvinyl chloride). As a result, environmentalists are strongly against its use due to environmental concerns in the processing, manufacturing, and disposal of the product.

Doctors have also reported a high incidence of health problems of people living near factories where vinyl is produced, as a result of inhaling toxic fumes. Scientists also agree that manufacturing and disposing of vinyl is hazardous to the environment.

Metal Roofing Systems for Steel Buildings (continuation)

Tuesday, October 19th, 2010

Accumulation of snow or ice on the roof may cause the purlins to rotate from their original orientation, compromising their structural integrity. This phenomenon called purlin “rollover” can cause purlins to buckle and eventually, collapse.

Prior to 1996, there were reported instances of actual roof collapse incidents because of purlin “rollover”. The American Iron and Steel Institute (AISI) recognized the design flaw and established a standardized test procedure and clarified how adequate lateral bracings for purlins can be achieved. The revisions are contained in the 1996 release of the Specification for the Design of Cold-Formed Steel Structural Members.

The new standard requires that a “base test”, done according to AISI standards, be performed first. The test returns the amount of lateral support that is provided for the purlin, by the deck and clip. The design of standing seam roofing systems for steel buildings should either include purlin braces or the capacity used in the design of the purlins be reduced, based on the results of the base test.

Some of you may ask why should this happen when building codes were supposed to be factored in, in the design of steel buildings. Building codes were indeed incorporated in the design, but the designers may have used incorrect assumptions about the ability of the deck and clips to provide adequate lateral bracing for the purlins.

The AISI recognized these incorrect assumptions, prompting them to update their standards.

Make sure that your steel building supplier/manufacturer has been given a AISI-MB certification to ensure that your steel building is of high quality and designed based on the existing standards.

Source: http://pepsicoexpert.com/downld/files/P0043UTH%20CollapseMetalRoof.pdf

Metal Roofing Systems for Steel Buildings (continuation)

Monday, October 18th, 2010

The last two posts talked about standing seam roof system for steel buildings, how they are attached to the purlins, and the different methods of sealing the seams.

This post continues to tackle standing seam roofs and introduces the other main roofing system for steel buildings, the through-fastened system. Also, the post talks about proper purlin bracing to prevent roof collapse.

Standing seam roof systems use concealed clips or fasteners to attach the panels to the building purlins. At the same time, the deck and clip system provides necessary lateral or sideways support for the purlins. To achieve this, the specific deck and clip design must be tight and strong.

Unlike standing seam roof panels that are not directly attached to the purlins, installing a through-fastened roof panel involves using screws to fasten the panel to the purlins. These screws are directly exposed to the exterior of steel buildings. This method provides lateral stability and adequate bracing to the purlins via a more solid mechanical connection between the roof deck and the purlins.

Whichever metal roofing system is used, the roof deck is commonly supported by lightweight steel purlins that are either “Z” or “C” shaped.

Both of these roofing systems transfer the applied loads from the metal roof panels to the structural steel frames. During winter storms, snow or ice eventually build up on the steel buildings’ roofs. As the weight of the snow increases, the purlins may rotate from their original orientation, if not properly supported by the deck and clip system or by other forms of bracing.

(to be continued)

Source: http://pepsicoexpert.com/downld/files/P0043UTH%20CollapseMetalRoof.pdf