CROSSBOW is a new 100m yacht (Superyacht Concept) was unleashed by Hydrotec, an Italian naval architecture studio. The particulars on their new superyacht concept Crossbow is as follows:
Made from an Aluminum hull
A superstructure and with a massive 100m/328ft (mega yacht)

The yacht is outlined to furnish guests with an extraordinary cruising experience that accord high-speed performance, a lucre of amenities and stabilized indoor-outdoor living designed with a beam of 12.5m/41ft and a draft of 3.5m/11ft.

The crossbow has a very contemporary aspect and the concept images exhibit a vertical bow, lustrous, sharp lines, and a dark hull. There is an illusion of a double-height deck as a curved windscreen is presented, and benefits from double the ceiling room from the upper deck forward sky lounge.

Alteration of the interior layout is possible and is allowed to fulfill client specifications and alternative arrangements enable for a private owner’s deck or on the upper deck, an ample owner’s suite.

In order to establish speed efficiency throughout transit, outdoor accessories are mainly lightweight, secured in place and safeguarded from the wind.

There are two 9.5m/31ft convention tenders kept in front of the beach club and station through a side-opening hatch for conveying to and from the destination or airports. For storage of additional sizeable water toys, the garage has great space so that there is no urgency for a support vessel. Below the foredeck, there is a concealed heli-hangar, and to allow for operation, it slides out to either side. Allowing for a top speed of 25 knots, it comes with twin MTU 16V 4000 M93L engines.

Tongue and Groove Flooring


The style used for a process of fastening materials is called tongue and groove. The method is simple: while allowing for some flexibility, two boards is seam in a way that it grips them together.  

In recent days, the traditional tongue and groove have been replaced by an almost identical method for some types of flooring.


Tongue and Groove Uses:


  • Conjunction with wood floorboards
  • Sheet paneling
  • Wainscot
  • It is also used in other materials where a tight, solid seam is needed between separate pieces.


For tongue and groove process, it also means that there is a protruding tongue side and a receiving groove side for each side. It runs the entire perimeter of the piece, all four sides for each of the tongue and the groove. It should firmly fit into the groove of the connecting board for one tongue. To control vertical movement between adjoining boards is the purpose of this process. To a small degree, movement horizontally is still permitted and since wood flooring will expand and contract, it is a desirable quality.


Lock and Fold Similar to Tongue and Groove

A straight tongue that horizontally slides into a straight groove is what a basic tongue and groove joinery.


Nails or flooring staples are driven into the tongues to avert the boards from moving. These fasteners are connected directly to the sub-floor.


A slightly different technique came about–floating floors as laminate flooring manufacturers generate new ways of joining boards. In this case, the floating floors affix only to themselves, from one board to another and omitting the sub-floor.


The production of luxury vinyl flooring profited from laminate’s breakthrough and improved on them in tons of ways.


The glue was utilized to join tongues to grooves in the beginning. An easier method was developed which is lock and fold, that allows tongues to fit into grooves eliminating use of glue or fasteners.  


The lock and fold method involves angling one board onto the adjoining board. After which, folding it downward. Still, there is room for some infinitesimal movement horizontally, but not anywhere near the type of movement as permitted by traditional tongue and groove.  




  • Requires little amount of nailing or use of glue to hold together to join tightly.
  • Provides tiny seams.
  • The groove can even be water-tight once properly coated. This only is applicable to site-finished flooring, excluding the pre-finished.



  • Especially with boards that have become swollen affected by humidity, it can be hard to fit the tongue into grooves.
  • Tongues can easily be broken but this factor can be eliminated if special care is taken.
  • It is hard to dismantle the pieces that were joined with tongue and groove. Without serious breakage, the tongue and groove wood floors generally cannot be disassembled.

Types of Adhesive Glue Ideal for Hardwood Floor

One of the most important decisions that you make before you start the installation process of hardwood flooring is choosing the type of glue. If you’re on a budget constraint and you’re opting for the cheapest adhesive, it may entail more cost on repairs in the future. By cutting corners and getting cheap adhesives as what most DIY enthusiasts or the weekend homework would do, which would usually undermine their own efforts.

Types of Adhesive Glue for Hardwood Floors

For the classic wood floors, these are essentially two adhesive glue down product types: (1.) Urethane Adhesive and (2.) Water Based Adhesive Glue Down

Urethane Adhesive

Among all the types used adhesives today, the urethane is the most popular. Generally, if floor companies that manufacture hardwood floor that doesn’t offer their own glue product, they will specify a particular brand of glue. Urethane adhesive is by far more eco-friendly than glues that were used decades ago which are now banned by the EPA, while not the ultimate solution for people looking for a viable solution. Usually, to properly install solid floors, nails are used while glue can be used for engineered floors.

The proper clean-up on the day of installation is demanding if you are opting to use urethane adhesive. For this type of glue,  mineral spirits are the common clean up material.

Water-Based Adhesive

When using glue down adhesives most companies who do installation will tell you that the “plop and slide down method” should not be used. This is because for the DIY, on some occasion, the board may drop down away from the tongue and groove and you will notice that when installing a board. Inserting the board into the groove will nearly fail with the characteristic of the glue when using urethane based glues. When this happens though, the water-based adhesives are far more lenient.

When using water-based adhesives, it usually responds well to the banana effect of some engineered hardwoods which is another benefit. When the wood doesn’t emerge to be completely secured to the subfloor, this is what the banana effect is. There is a little corrective measure that you can take when using urethane adhesive which is the total opposite of water-based adhesive. With water-based adhesive, add a weight to the section that doesn’t perfectly fit. The result then is a stronger, concrete glue-down after drying.


Solar Roofing: Advantages and Drawbacks

Solar roofing has gained the attention of many homeowners and home contractors especially those who is an are pro-environment. This type of roofing have advantages and comparatively disadvantages. To convert sunlight into electricity, solar roofing takes advantage of photovoltaic energy. Joined together to form a solar panel, a solar roof contains several photovoltaic cells. Some panels are installed on the roof, where they are the task to transform sunlight into electricity. This process makes a huge saving in energy bills for the homeowner and promotes environment-friendly.



Because sunlight is inexhaustible and always available in most parts of the world, solar roofing is a great roofing option as a solution for our ever-increasing demand for electricity.

Bargain Aspect

Because you will no longer be dependent on traditional methods of power supply in your home, a solar roof can reduce your utility bills with an impact. During the first year of usage, most homeowners who install solar roofs can feel the drop in their electrical bills.

Reliable and Maintenance Free

A solar roof is built to remain useful for years. Compared to normal roofing methods and materials, maintenance and repair are minimal so there’re significant savings on cost.

Environmentally Friendly

Because burning of fossil fuel to generate electricity is now eliminated when opting for solar roofing, this is an environmentally friendly option. People’s demands are fast exceeding the available supply and we have a limited supply of non-renewable energy on earth. We can reduce our need for exhaustible resources by changing to solar energy as an alternative.

Reduce Toxic Emissions

It is a clean and green option for solar energy since there are no emissions involved. Solar roofing does not entail emissions of greenhouse gases that add up to global warming unlike conventional methods of generating electricity.

Support Options

Technology has made possible using backup options for providing energy since solar roofing cannot function without sunlight. Even during the night or when the weather is adverse, use of backup ensures that there is a constant supply of power.


In comparison to the extent of the benefits, most people find the disadvantages unimportant.

High Setup Costs

To setup and install, solar roofing can be costly. It usually consists of traditional, non-solar roofing material for some parts of the roof like corners and ends. As compared to traditional roofing, the cost of installation and materials for a solar roof is much higher. However, the initial costs can be defended by the long-term savings that are to be considered.

Sunlight Dependent

Solar roofing is dependent on the availability of sunlight. The photovoltaic cells cannot function during cloudy days and during the night. For this scenario, You may need to have standby for alternate sources of power.

Clay Tile Roofing

One of the oldest and most used types of roofing in the world is clay tile roofing. Use of clay tile roofing expands from North America to Egypt, to Rome.

Over time, its use and popularity fluctuate but still, it’s one of the material that can stand the test of time. Much clay tile roofing can still be seen in Germany particularly in Hanseatic City of Lübeck and temples and Palace in China.

Let’s take a look at what clay tile material can provide as roofing for your home including the drawbacks:

Advantages of Clay Tile Roofing


Probably the biggest advantage of clay tile is its durability among its many advantages. Clay tile roofing has been accounted to last a century and no question its durable enough compared to other roofing materials. Clay tile can resist winds brought by the hurricane and like wood does not contract and expand with the temperature.


Available in a variety of shapes, sizes, and colors is another advantage of clay tile unlike regular shingles, which provides definite character and visually absorbing feature to the appearance of your home.

Reflective Properties

Clay tile roofing has the property to reflect which help to surge the efficiency of heating and cooling systems.


Clay tile material is not susceptible to mold or rot which means there is not much cleaning needed.

Drawbacks of Clay Tile Roofing

Weight Issue

Clay tile is a heavy type of material. The roofing must be built strong enough to support it. However, if you prefer this material, you need to be sure that your roof can support the weight of the clay if you are installing them for the first time. Before starting the installation, it’s a must add support beams.

Cost of the Material

Another drawback when preferred to use clay tile for roofing material is the cost. Initially, the fact that they probably will never need to change should be deliberated although much more pricey than other types of roofing materials.


Corrugated Metal Roof

The type of exterior building envelope system appropriate for exterior wall and roof applications is corrugated metal. Compared to a traditional asphalt shingles roof, corrugated metal roofs can usually last much longer. Corrugated and ribbed metal panels are metal sheets that are formed into ridges or waves. To form channels for water and snow to run off the roof, the metal roof panels are indented, or corrugated, once shaped.


  • A cost-effective, durable and substantial material
  • Long been the favored material for roofing for agricultural and industrial buildings
  • A corrugated metal roof can last up to three times as long as asphalt (approx. 25 years up to 60 years)

Longevity Features

It is often determined by the width of the panel, and type of coating used for a long period a corrugated metal roof will last. The better the quality of coating used, the longer the system will likely last if the panel is thicker. In the longevity of the system, suitable maintenance will also play a foremost role.

Corrugated metal roofing materials are gaining respect in the residential roofing market, as well while it has long been the most popular choice for commercial and agricultural constructions. Corrugated galvanized steel is fetching a very prevalent material in modern architecture and in environmental-theme building new construction developments, and energy proficient retrofits.

Preservation Factors

To keep it from corroding, to redirect heat, or to escalate its waterproof assets, there are some varieties of coatings that can be functional to a corrugated metal roof. Today, there are many new materials developed but the usual is made of ceramic and epoxy coatings.


Corrugated metal is very sturdy and durable as it can resist fire, wind, and hail. A painted metal roof is idyllic for shedding great amounts of snow for structures such as cabins erected in the Northern or hilly regions. It can support to save money on utility bills by dropping the use of air conditioning, as the shiny roof will redirect a great amount of heat from the sun once a coating is applied on a corrugated metal roof with reflective coatings. In the occurrence of rain or a hailstorm, and also low hanging tree limbs can grind and scratch it along the surface are some created noises which can be a disadvantage for a corrugated metal roof.


Corrugated metal roof maintenance is limited to the occasional need to re-coat the metal roofing panels in the incident of corrosion, or fading is visually prominent on its finish.