Dehumidification >> Wet Crawl Space Dehumidification Vs. Ventilation

While the kiln described in this publication is designed for simple operation, you will still need to closely monitor the drying process. Monitoring the moisture loss and quality of the wood during the drying process will help you maximize the efficiency of the kiln. Simply explained, when drying lumber you want to dry fast enough to prevent stain and long drying times, yet slow enough to prevent checks Wet Crawl Space Dehumidification Vs. Ventilation and other drying defects. 

The prevalence of certain defects is influenced by the species, thickness, moisture content, and drying conditions. Monitoring the moisture content during the drying process is important to avoid drying too rapidly (which results in quality loss) Wet Crawl Space Dehumidification Vs. Ventilation and to know when the load has reached the desired moisture content. 

Measure the sample boards daily to determine the daily rate of moisture loss. This loss should be compared with the safe drying rate for that species (see Figure 7 for hardwoods). If the drying rate is too fast, Wet Crawl Space Dehumidification Vs. Ventilation then it may be necessary to increase the relative humidity setpoint of the dehumidifier or turn two of the four fans off. 

Lumber should be dried to the maximum safe drying rate without exceeding the daily loss. The safe drying rate refers to the moisture loss in one day, Wet Crawl Space Dehumidification Vs. Ventilation not the average loss over several days. Figure 7 lists the safe drying rate for common one inch thick North American hardwoods. Softwoods are typically able to dry at a much faster rate and moisture content losses above 10 percent per day are quite common. 

When lumber is at its highest moisture content, Wet Crawl Space Dehumidification Vs. Ventilation it is important to adhere to the safe drying rate. Most unwanted checking and splitting in drying lumber occurs as the wood loses the first one-third of its moisture content. Once the lumber dries below 22 percent moisture content, the risk of creating new cracks and splits is low. 

Dry lumber for interior use to a moisture content of six to eight percent for most areas of the country. This will limit the amount of dimensional changes that would occur when the wood is processed Wet Crawl Space Dehumidification Vs. Ventilation and in service. Lumber used for exterior purposes is usually dried to 12 to 15 percent moisture content. Softwood lumber used for framing is commercially dried to 19 percent moisture content. 

However, fewer building defects would result if softwood framing lumber were 5 dried down to 12 percent moisture content. For information on drying schedules Wet Crawl Space Dehumidification Vs. Ventilation and schedules for specific species and thicknesses, see the reference to the Dry Kiln Operator’s Manual and the Dry Kiln Schedules for Commercial Woods: Temperate and Tropical. 

In measuring the rates of moisture loss, it is impractical to weigh every board in the kiln and electric meters are not accurate above 30 percent moisture content. Therefore, Wet Crawl Space Dehumidification Vs. Ventilation the sample board method should be used to determine the moisture content of lumber in the kiln. This method uses short, carefully chosen sample boards sawn from larger pieces of lumber and these sample boards are weighed periodically and estimated moistures are calculated. 

Since the wettest or slowest drying lumber in the kiln has the highest risk of splitting and cracking, the sample boards should represent this kind of lumber. Use samples from the most recently cut wood, the widest and thickest boards, Wet Crawl Space Dehumidification Vs. Ventilation lumber with the most heartwood, and boards that are quarter sawn whenever possible (see Appendix C: Procedures for Cutting and Using Sample Boards). 

Select a few boards from the stack of lumber that represent the slowest drying material. These would be the widest, thickest, Wet Crawl Space Dehumidification Vs. Ventilation and highest moisture content boards. Boards that contain the most heartwood or are quartersawn are also suitable. 2. Cut a 24 to 30 inch sample that is free of knots and at least 12 inches from the end of the board. 

Then cut two one inch sections from the sample board as shown (see Figure A). Make sure to number the sections Wet Crawl Space Dehumidification Vs. Ventilation and sample board. 3. Immediately weigh the one inch sections (accuracy of about one gram required) and record the weight. Measure immediately after cutting since it is important that they do not gain or lose weight before weighing. 

4. End coat the sample board with a roofing cement or commercial end coating (see Figure B). Now, Wet Crawl Space Dehumidification Vs. Ventilation weigh the sample board and record the weight on the sample (accuracy of 0.1 pounds). 5. Place the sample board in the lumber stack in a location where it will dry at the same rate as the rest of the lumber in the dryer (see Figure C). 

6. Place the one inch sections in an oven 215ºF to 218ºF (102ºC to 103ºC) and dry– usually 18 to 36 hours depending on the oven. Reweigh Wet Crawl Space Dehumidification Vs. Ventilation and obtain the oven dry weight. 7. Calculate the moisture content of each section and average the moisture content (MC) of two sections to obtain the moisture content of the sample board. 

8. Estimate the oven dry weight of the sample board using average moisture content and weight from step #4, and record this so it can be used for future moisture content calculations. 9. To determine the moisture content at any time, Wet Crawl Space Dehumidification Vs. Ventilation reweigh the sample board and calculate. Treatment and disposal of large amount of produced water is a considerable economic and environmental burden for oil and gas industry. 

On the other hand, for many remote areas with shorting of clean water supply and enriched with oil/gas production such as New Mexico, Wet Crawl Space Dehumidification Vs. Ventilation purified produced water could be a valuable water source for beneficial uses. The goal of this research is to purify produced water at wellhead, yielding water clean enough for beneficial uses like drilling, stimulating, or water flooding. 

A new concept of produced water purification by Humidification-dehumidification (HD) process was developed in which low-temperature energy sources, Wet Crawl Space Dehumidification Vs. Ventilation such as co-produced geothermal energy or solar energy, could be used to drive the water desalination process. 

The system contains humidifier where produced water meets with flowing air for evaporation and dehumidifier for clean water creation and collection. The unique feature of this process is that co-produced geothermal energy or Wet Crawl Space Dehumidification Vs. Ventilation inexpensive solar energy could be deployed. In addition, direct internal heat transfer has greatly enhanced latent heat recovery.

How To Get Tenants To Report Llegal Dumpster Dumpi

What is the difference between ordinary wear and tear and damages?"Ordinary wear and tear" to one person may be viewed as "abuse" or"damage" to another. In the absence of a definition of ordinary wear and tear in the State Code or County Code, Tenant Move Out Cleanup How To Get Tenants To Report Llegal Dumpster Dumpi the Landlord-Tenant Commission offers the  read more..

Compulsive Hoarding Trash Pickup

In these modern times, it is very common for a woman to own four pairs of shoes. But there's definitely a difference between an average collection of shoes and a closet that's packed from floor to ceiling with unused shoes and shoe boxes that you've forgotten what's in them. It is not hard to  read more..

Flood Does Bleach Kill Mold

Basement Flood - Does Bleach Kill Mold Should I test for mold? Mold testing can be expensive and time consuming, and it usually requires special equipment and trained technicians to obtain reliable results. But most importantly, you probably will not get the results from your mold test for a couple   read more..

How To Secure Windows For A Hurricane

To prepare for a hurricane, you should take the following measures: To begin preparing, you should build an emergency kit and make a family communications plan. Know your surroundings. Learn the elevation level of your property and whether the land is flood-prone. This will help you know how your pr  read more..

Tenant Eviction Notice

Tenants who receive a housing subsidy or live in a federal or state housing project may have rights in addition to those provided by state law. For example, the U.S. Department of Housing and Urban Development (HUD) or Tenant Move Out Cleanup Tenant Eviction Notice the Alaska Housing Finance Corporation (AHFC) may control rent inc  read more..

Hurricane Damage

Tornadoes have been reported in early every state, and though they usually occur during spring and summer, they could occur any time of the year. While Wind Damage Hurricane Damage could occur at any time of the day or night,they are more likely to occur between 3:00 and 9:00 p.m. There are no areas immune to tornad  read more..

Safely Get Water Out Of A Flooded Basement

Reinforce walls and footings to minimize shrinkage cracking and cracking due to uneven settlement. To retard movement of radon through hollow core masonry walls, the top and bottom courses of hollow masonry walls should be solid block, Basement Drying Safely Get Water Out Of A Flooded Basement or filled solid. 

  read more..

Wildlife Nuisance Control

The Louisiana Department of Wildlife and Fisheries does NOT provide nuisance animal control or removal services. We do permit individuals (Nuisance Wildlife Control Operators) to provide these services for a fee. The Department maintains a list of over 100 nuisance animal trappers located across the  read more..

Tools For Restoring Flood Damaged Electronics

Other manufacturer-supplied test data shed light on the typical behavior of tantalum polymer capacitors after exposure to various environmental stresses. Sanyo provided data that describe the typical response of their capacitors to dry heat, moisture, solder reflow conditions, and Electronic Restoration Tools For Restoring Flood Damaged Electronics DC   read more..

How To Dry Out Your Water Damaged Basement

Manage exterior ground and rain water by using gutters and downspouts and by grading the ground around the perimeter at least six inches of fall over ten feet of run. Install a foundation drain Basement Drying How To Dry Out Your Water Damaged Basement surrounded by gravel and enclosed by filter fabric. Apply either damp-proofing or water-proofing  read more..