Air Vent Inc 81202 Aluminum Wall End Louvers

Flush flange. 8 mesh aluminum screen. No. RL808000: 8″ x 8″, mill No. RL808090: 8″ x 8″, white No. RL812000: 8″ x 12″, mill No. 81104: 12″ x 12″, mill No. 81202: 12″ x 12″, white No. 81112: 12″ x 18″, mill No. 81214: 12″ x 18″, white No. 81134: 14″ x 24″,

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Air Vent Inc 81232 Aluminum Wall End Louvers

Flush flange. 8 mesh aluminum screen. No. RL808000: 8″ x 8″, mill No. RL808090: 8″ x 8″, white No. RL812000: 8″ x 12″, mill No. 81104: 12″ x 12″, mill No. 81202: 12″ x 12″, white No. 81112: 12″ x 18″, mill No. 81214: 12″ x 18″, white No. 81134: 14″ x 24″,

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Crawl Space Door + Louver Installation

Ventilate your crawlspace with natural air flow with our crawlspace vents, louvers and doors. PROTECT YOUR HOME Moisture in the crawlspace rots the wood under your home. Reduce the moisture in your crawlspace with our crawlspace doors, louvers, vents and fans. … “crawl space doors” “vent covers” “air vents” “door fan” “shutter fans” “flood vents” “crawlspace door” “smart vent” “home humidity” “flood and air products” “air fan installation” “foundation doors” “vent foundation” “exhaust …

Protect Your Home with FEMA Compliant Flood Vents

It May Be A Lot Easier Than You Think

Would you like to understand the FEMA flood vent regulations that apply to your home? And reduce your flood insurance premiums by a sizable amount?

This document makes the regulations easy to understand, points out the benefits of installing flood vents, and will help you decide what kind of vents to install.

Properly positioned and installed flood vents in your home’s foundation walls will not only help you protect your investment, they can help you save money. And, despite what you may have heard, the regulations governing their type and placement are easy to understand.

These regulations were stipulated by the National Flood Insurance Program (NFIP), a program of the Federal Emergency Management Agency (FEMA).

Requirements: the Basics

1 – Openings must be installed in foundation walls so that water can flow, unimpeded, in and out of the crawl space without damaging the walls’ integrity. The regulation is easy to remember: one square inch of opening in the foundation wall for every square foot of the area of your house. For example, a 2,000-square-foot crawl space would need 2,000 square inches of opening. The number of flood vents you need to install depends on the size and type of vent you buy. (More on that later.)

2 – Each enclosed area must have a minimum of two openings. If there are multiple enclosed areas within the foundation walls, each area must have at least two openings in its exterior walls.

3 – Flood vents must be below flood level to work. The bottom of each opening must be no more than 1 foot above whichever of these is higher: the interior or exterior grade immediately under the opening.

4 – Any screens, grates, grilles, fixed louvers, or other covers or devices you install must not block or hinder the automatic flow of floodwaters into and out of the enclosed area.

Why Are Flood Vents Required?

The purpose of flood vents (also called “flood gates” or “flood ports”) is to reduce structural damage from flooding. These permanent openings accomplish this objective by allowing water to pass into or out of a building’s exterior foundation walls.

Why is that so important? In a flood situation, if the water pressure inside and outside your home can’t equalize rapidly enough, the windows and doors could blow out. In addition, this pressure can compromise the foundation and make your home unsafe to live in. Studies have shown that houses with proper openings survive a flood; homes without such vents collapse.

Who Needs Flood Vents?

According to its website, the NFIP “requires flood vents for residential basements, crawl spaces, garages, and other enclosed structures that are below the Base Flood Elevation (BFE) in Special Flood Hazard Areas.” BFE is the height of the base flood, usually in feet, in relation to the National Geodetic Vertical Datum of 1929 or other datum as specified.

If your home isn’t mortgaged, you aren’t required by FEMA/NFIP regulations to have flood insurance or flood vents. However, flood insurance is advisable to protect your investment. And foundation flood vents are still a wise move to ensure that floodwaters do not structurally damage your home. How Cost Savings Add Up

Properly installed and situated flood vents can pay for themselves very quickly. They allow you to save in two ways. The annual reduction on your flood insurance premiums can be considerable. Secondly, should floodwaters rise to your home, flood vents can reduce the risk of structural damage, which can be very costly to repair.

Which Type of Flood Vent Should You Install?

There are two types of flood vents on the market: non-engineered and engineered. Engineered vents have been designed in such a way that they provide a more efficient flood relief system, and thus fewer vents will need to be installed.

The opening size of the non-engineered flood vent is calculated by multiplying the width times the height of the opening. The opening size of the engineered flood vent is calculated using a mathematical formula that takes into account certain coefficients, net area and opening shapes. This formula calculation must be certified by a professional engineer. The main difference between the two types of flood vents is that fewer of the engineered flood vents are required to meet NFIP requirements. For example, a non-engineered 8″ x 16″ vent is rated at 128 square inches while an engineered 8″ x 16″ is rated at 200 square inches.

Other design and performance criteria for engineered openings are specified by the American Society of Civil Engineers:

1 – Engineered openings are to perform such that the difference between the exterior and interior water levels shall not exceed 1 foot during base flood conditions.

2 – Engineered openings are to be not less than 3 inches in any direction in the plane of the wall. This requirement applies to the hole in the wall, excluding any screen, grate, grille, louvers, or devices that may be placed in or over the opening. The 3-inch opening requirement applies to the hole in the wall; not the space between the grates, grilles or louvers.

In a Nutshell: Numbers to Remember

FEMA’s flood insurance requirements boil down to this:

1 – One square inch of opening in a foundation wall per square foot of house.

2 – Vents must be less than 12 inches above the ground.

3 – Two vents per enclosed area, on different exterior walls.

That’s it. Make sure you have the appropriate flood vents installed — or do it yourself — then call your flood insurance company to get a reduction in your premiums. You’ll also enjoy the peace of mind of knowing that you’re not only compliant, you’re safer.

Using Cast Iron Register Covers, Grilles and Vents In Your Home

When replacing the register covers in your home you want to take two important factors into account – quality and design. Cast iron register covers are a wonderful way to update your existing hardware with high quality and heavy duty material that will stand the test of time while also introducing classic Victorian patterns into any room. While most popular in the late 1890’s through early 1900’s, cast iron register covers are an excellent way to ensure you are updating your home with registers that can withstand large amounts of weight and will not dent or become damage under normal wear and tear.

Heavy duty cast iron registers are available in a wide variety of sizes and designs. Most typically featuring ornate swirl patterns or geometric Victorian designs, these registers will accent any room and can help create or enhance current decorating themes. Depending on where the register is needed (wall or floor) mount holes can be drilled into the register.

When choosing a new register for your home it is important to follow a few simple steps. First, remember that the boot size and overall size of a register are two separate measurements. A boot size refers to the size of the hole in your floor or wall while the overall size refers to the registers overall dimensions. This is important to know because the lip of the register fits into the floor or wall for stability. Second, know the difference between a register and a grill. A register comes with directional louvers while a grill does not. If you do not require louvers you may want to consider a grill as a less expensive option. Finally, ask if the register you have selected is available with mount holes if you are installing it on a wall. While floor mounted registers do not need mount holes (they can be used for added stability if desired) wall mount registers will need to be screw mounted to keep them in place.

Cast iron register covers are readily available online as well as in many home decorating magazines. Search for solid iron construction to ensure maximum heavy duty durability and be sure to ask questions. When you work with cast iron home hardware you can be sure that you are introducing classic designs into your home and high quality. These cast iron register covers are available online through LookInTheAttic & Company and they offer free design assistance and hardware help.

Cool Attic CX2121 Automatic Gable Vent Shutter, High Impact One-piece ABS Cycolac Frame

From the Manufacturer

This Cool Attic Automatic Gable Vent Shutter has a high Impact one-piece ABS Cycolac frame. It is used with the CX1500 or CX1600 gable vents. It is not made for the VX2515Solargabl solar gable fan. The louvers will open automatically when the ventilator is operating. When the ventilator is off, the louvers close to keep out insects, rain and dust.

Gravity operated. For use with all power gable ventilators. Louvers open when operating and wh (more…)

Ventamatic Ltd CX2121 Power Automatic Gable Vent Shutter

From the Manufacturer

This Cool Attic Automatic Gable Vent Shutter has a high Impact one-piece ABS Cycolac frame. It is used with the CX1500 or CX1600 gable vents. It is not made for the VX2515 Solar gable fan. The louvers will open automatically when the ventilator is operating. When the ventilator is off, the louvers close to keep out insects, rain and dust.

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