Monthly ArchiveNovember 2017

New Roof vs. Re-Roof: Whats the Difference

Is roofing system replacement a much better alternative than maintaining it when the roofing system’s leak-proof stability– its main function– stops working? To puts it simply, at exactly what point do roof leakages become intolerable, and it’s time to change the roofing system?

Consider how roof leaks can affect the bottom line:

Interior damage: To ceiling tiles, carpet, computers, gym floors that might cost $500,000 to change.

Production downtime: Shutting a line down for a day could cost thousands of dollars in lost productivity.

Lost company: Roof leakages at a four-star hotel can make the most costly rooms unavailable for guests.

Postponing roofing system replacement can include expenses to a new roofing system project once the choice to replace it is made. Inefficient and irregular patching and other upkeep can permit water to penetrate the membrane and cause irreparable damage to roofing system components, consisting of insulation and the roofing deck itself. Here are some possible added-cost considerations:

Detach– add $1-2 per square foot.

Roofing deck replacement– add $2.50-6.00.

Asbestos elimination (possible for some older centers)– include 10% or more.

The roof contributes– typically– 5% to the building expense of a building, but is one of the most prosecuted element of an industrial building.

Building owners/managers should use their experience to develop a forecasted average life span of roofings. A number of elements will affect a roofing system’s life span: style quality, setup stability, products, upkeep, roof usage, and weather condition.

Here’s an example: If you handle a million square feet of roofing that has actually a projected life span of 20-30 years, you may think about budgeting to replace 1/20 or 5% (50,000 square feet) per year. If the average installation cost is $5 per square foot, want to budget $250,000 each year.

So when you are choosing between maintaining or changing, take a look at your yearly maintenance expenses and if they are exceeding exactly what your annual new roofing budget is, it may be time to change.

The Importance of Proper Attic Ventilation

One the most popular topics in the construction market and in other places is the negative impact that direct exposure to mold and mildew can have on human health. It has recently been reported that the mold count inside a structure can be as much as two to five times higher than outdoors. The key to safeguarding the health of citizens is to decrease the event of mold and mildew from the start. One important prevention approach lies squarely with the roofer: the correct installation of suitable attic ventilation. click here for an additional resource on how proper attic ventilation can be beneficial for you. 

 

Sick Building Syndrome

There have been reports of cases in which direct exposure to mold and mildew has led to violent bronchial attacks, persistent sinus infections, main nerve system issues as well as memory loss.

 

According to cec-consultants. com, the Web website of an industrial engineering consulting company, biological contaminants likewise have been linked to Sick Building Syndrome (SBS). Building occupants in a “sick structure” may develop health conditions that seem linked to time invested in the structure. Research shows that signs disappear when the person leaves the building. Although no specific cause of signs has been recognized, mold and mildew have actually been named as one possible factor.

 

The difficulty for professionals is that buildings generally possess all elements essential for mold growth: mold spores, an adequate nutrient base, a temperature of 40 to 100 degrees F and the presence of wetness.

 

When property owners report mold damage to their insurer, the company investigates the cause to figure out if the damage is covered by the holder’s policy. If the cause of mold is determined to be flawed craftsmanship or products, then this cause in fact indicate the contractor, who is now forced to safeguard the claim– often without insurance coverage. Recently, some insurer have stopped covering mold-related damage in a number of states and contractors deal with serious liabilities.

 

Attic Ventilation is Key

An efficient attic ventilation system can prevent wetness and control humidity, thus reducing mold and mildew growth. Insufficient ventilation is the reason for about 50 percent of indoor air pollution and may likewise trigger shingles to weaken twice as fast. Setting up shingles with improper ventilation might result in voiding the producer’s service warranties.

 

Though today’s houses are sealed better from weather intrusion, moisture will still go into the house no matter how tightly sealed. A common family can create 2 to 4 gallons of moisture per day through routine activities such as cooking, bathing and laundry. Other day-to-day wetness triggers in the house can consist of flooding, leaking pipes, moist basements, and/or leaking roofing systems.

 

However moisture can likewise be present in structures in its gaseous state, typically referred to as humidity. At a 70-percent humidity level, the growth of fungi is fast. Regrettably, relative humidity often exceeds 70 percent inside your home even when attic ventilation requirements are satisfied. This issue is prevalent in humid climates where the outdoor relative humidity worth commonly exceeds 70 percent. By managing the indoor relative humidity in between 30 and HALF, biological development can be decreased.

 

Exactly what to Do

There are two types of ventilation: dynamic and fixed. Power, or dynamic, ventilation is achieved in two methods. In houses without cooling, the temperature level can be controlled to some extent by the use of attic fans. These fans are normally ceiling mounted in a main hallway so that outdoors air is pulled through open windows and exhausted through the attic. It is essential to calculate the required quantity and position of vents to effectively ventilate the attic.

 

Bear in mind, nevertheless, that power ventilation methods can contribute to the energy use of the home. And inning accordance with askthebuilder.com, “It turns out that roof and sidewall-mounted attic fans can really suck air conditioned air from your house into your attic area.”

Fixed ventilation is using non-powered ventilation items that deal with the natural flow of warm air and wind movement around the home. This approach benefits from two principles. First, as air is heated it becomes less thick and increases. Second, wind movement over and around a house produces locations of high and low pressure. If a space has high air outlets (exhaust) in conjunction with low inlets (intake), ventilation happens as the air within the space is heated up.

 

Continuous ridge ventilation integrated with soffit vents is the most common type of fixed ventilation. It provides for a total movement of air throughout the attic area. Other types of fixed systems include gable vents installed at the attic wall, and turbine vents and pot vents installed near the peak of the roofing system that work by drawing air from the attic area.

 

Research study has actually discovered that a system consisting of constant ridge vents combined with soffit vents supplies thorough ventilation of the attic, consisting of air areas that frequently hold stagnant air when other types of ventilation are used. Continuous ridge vents integrated with soffit ventilation enable outside air to stream into the whole attic and displace super-heated and wet air. Air is always able to leave the attic and exhaust impurities from the house. It is important that all types of attic ventilation be designed and set up appropriately to prevent biological development, especially mold and mildew.