Introduction of Mansard Roof
A four-side gambrel-style hip roof, also known as a mansard roof or simply a mansard, is often compared in design and functionality with a gambrel roof vs mansard roof. With the lower slope on it is its sides, it is characterized by two slopes punctured by dormer windows.
Without windows, a steep roof inhabitable space creates an additional floor and for a given number of habitable stories, it reduces the overall height of the building.
From the street level of the building when viewed, not be visible the upper slope of the roof. The earliest known around 1550 to Pierre Lescot the mansard roof is created on part of the Louvered built.
By Francois Mansard in the early 17th century the roof design was popularised. Of napoleon’s third during the second French Empire, especially this type of roof became fashionable.
Of the mansard, in a close cousin commonly seen this type of gable roof style barns in North America. Gambrel or mansard both roofs are under fall in curb roof in the general classification.
However, with the slope on only two sides, the gambrel roof is a curb gable roof on the other hand on all sides of the building with slope mansard roof is a curb hip roof.
Mansard roof is a fundamental part of the French and later became popular in several countries. Mansard roof is not completely familiar with the gambrel, which is a modified form of a gable roof, but it is unlike a gable roof.
Naturally, the mansard roof has two slopes on each side; the top slope of this roof is almost splattered than the bottom slope, and the bottom slope is looking like almost vertical.
What Is Mansard Roof?
This mansard roof, commonly referred to as a French roof or curb roof, represents a hybrid form combining elements of both hip and gambrel roofs, illustrating the mansard vs gambrel design considerations.
With the lower slope on it is its sides, it is characterized by two slopes punctured by dormer window and the windows steep roof inhabitable space create an additional floor and for a given number of habitable stories, it reduces the overall height of the building.
Gambrel or mansard both roofs are under fall in curb roof in the general classification. However, with a slope on only two sides, the gambrel roof is a curb gable roof on the other hand on all sides of the building with slope mansard roof is a curb hip roof.
Mansard roof is a fundamental part of the French and later became popular in several countries and it is not completely familiar with the gambrel.
Naturally, the mansard roof has two slopes on each side; the top slope of this roof is almost splattered than the bottom slope, and the bottom slope is looking like almost vertical.
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Advantage of Mansard Roof
There are have many advantages of mansard roof that is below-
1. Extra Usable Space
A notable advantage of a mansard roof house is its ability to facilitate attic conversion or the addition of stories to an existing building, showcasing the mansard roof before and after transformation.
Because of the virtually vertical space of the mansard roof, it provides you additional space that gives you luxury.
In comparison to another roof like a hip roof or gable roof, the mansard roof provides more flexibility, if you need to include an extra master bedroom.
For this above reason, in the future, if you have the plane of added rooms then the mansard roof is an excellent choice that provides you extra space.
2. Aesthetic value
The advantage of the mansard roof is, this type of roof increases the outlook and aesthetic value of your building. And it is also more popular than traditional hip roofs or gable roofs for its unique style and design.
3. More Light and Better Heat Distribution
The advantage of mansard roof is, for allowing more natural light to enter from the bottom slope by the full length as they stretch for most commonly used dormer windows. It is another advantage of the mansard roof.
By creating this on the mansard roof we can get more heat distribution and efficient support. That makes the building more comfortable for humans leaving. It is another advantage of the mansard roof.
4. Extra Room for the Attic
The mansard roof design and framing are unique because their design provides extra space, which the gable and the hip roof do not provide.it is an advantage of a mansard roof.
5. High-Class Look with Morden Design Element
The advantage of mansard roof is, in French architecture the elegant and classical roofing is an important part that is becoming popular during the period of the Renaissance.
And it also provides a flexible option of adding more stories or rooms with a sophisticated look. It is an important advantage of the mansard roof. It is another advantage of a mansard roof.
Nowadays in mansard roof construction, the builders use quality materials that can last long to other roofs but earlier in the mansard roofs used heavy materials and non-resistance materials that are were made the roofed wicker.
But nowadays you can use the mansard roof without any tension of parts falling or rusting because it is constructed with the Morden technique.
6. Make It Easier to Expand:
The advantage of mansard roof is, this type of roof is very user-friendly; it is easy to expand, add and dismantle.
7. Suitable for Both Rural and Urban Areas
The advantage of mansard roof is, this type of roof material is easily available in all the places in Rural and Urban areas.
Another advantage of the mansard roof is, in a usable space with the mansard roof we can create any type of property in both Rural and Urban areas. But this type of roofing style is commonly used in urban areas.
The advantage of the mansard roof is, it can also help to reduce the cost of the building. So, the mansard roofing system also can call a cost-saving system.
It can help to save cost in many parts of the building like it also cut down to your home heating cost, reduce the cost of constructing an extra room in the building and also with proper sealing and shape it can distribute the heat evenly.
Another advantage of mansard roof is, in mansard roof metal shingles if we used then it increases the durability and sealing of the roof. In the long run of a roof, the mansard roof can reduce the maintenance cost of the building.
It is the advantage of a mansard roof. The important advantage of the mansard roof is, the cost of the materials of the mansard roof is affordable for the owners.
Disadvantage of Mansard Roof
Above the advantage of the mansard roof, there are have many disadvantages that are are below-
1. Challenges for Local Laws
Depending on your area, there are should be taken few permits for different requirements to use the mansard roofing style. that’s is so difficult to get this, that is a disadvantage of the mansard roof.
Depending on the total square footage of the mansard roofing building the taxes are implemented in the various location area. Another disadvantage of mansard roof is, to avoid any structural damage in some areas that has a certain height of the mansard roof buildings.
For the above reason if you think about constructing a mansard roof then you can discuss with an expert who knows the local area’s law for constructing a mansard roof.
2. Long-Time Involvement and High Installation Cost
A notable drawback of a mansard roof, particularly when considering mansard roof removal or replacement, is the extensive labor and time required for its installation compared to other roof types.
Due to the complex design, the installation charge is also high. In comparison with gable roofs, this roof charge is too high.
The high quality of the mansard roof makes the construction of it more difficult than other roofs because for its specialist are need. It is a disadvantage of a mansard roof.
The above situation makes it so difficult for a homeowner if he wants to construct a mansard roof on a low budget. Another disadvantage of a mansard roof is, if you want a long lusting metal shingles mansard roof then it makes your home more costly.
3. Low a Good Weather-Resistant
The common disadvantage of the mansard roof is, in the region of high rainfall and high snowfall, the mansard roof is not the best option to install. The drainage system is not also good in this type of roof.
Some leakage also appears in the upper portion of the roof, and it may be collapse due to heavy water accumulates. It is another disadvantage of the mansard roof.
4. High Maintenance and Repair Cost
The disadvantage of the mansard roof is, in weather extreme, the mansard roof has low resistance, for this reason, its keeps to daily check that increases the construct cost of the mansard roof.
Another disadvantage of the mansard roof is, for rung in highly stormy areas in the storm on the flatter portion of the mansard roof a lot of debris is collected that can damage the roof permanently.
Like installation cost, the maintenance cost of mansard roof is also high. So, these are some disadvantages of the mansard roof.
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Mansard Roof Materials Detail
Various materials, such as mansard metal roof shingles or tiles, are used in the construction of the mansard roof, that’s are below-
For contractions of the mansard roof, the material that is widely used is called asphalt. In the modern market the price of asphalt lies between $50 to $150 per square foot and also its average life span is between 20 to 30 years.
In most areas of the country where have high snowfall, rain, high temperature, and particularly sun exposure in this area, it is an ideal choice for constructing a mansard roof.
2. Ceramic and Cement Tiles
With a lot of sun exposure in hot climates, Clay or Ceramic tiles are widely used products. On the other hand, cement is a new addition in mansard roofing construction but it is as well ceramic.
During the hot summer months, both keep the building colorful because of is a naturally built product so it reflects the sunlight.
There have many problems in both tiles, that’s are in the extreme cold sometimes it is not resisting and crack or break but both have great resistance against fire. This type of tiles has up to 50 years life span and it has very low maintenance cost like natural wood.
3. Synthetic and Wood Shingles
In the market of mansard roofing materials, Synthetic roofing materials are to most easy that can be low maintained. This type of material is made by recycled material like recycled wood, combining plastic, rubber that make it eco-friendly and highly durable.
This type of material can easily withstand any natural extreme conditions like snow, rainfall, wind, and extreme temperature without any cracking or warping.
In the among materials the price of this material is moderate and if you take proper care then it can last up to 30 to 50 years. On the other hand, natural wood shingles need high maintenance and costly product.
GAF Mansard Roof Installation
For the installation of a GAF mansard roof, which often involves mansard roof framing and shingle application, follow these steps.
- GAF shingles must be installed on slopes of 2:12 or greater.Use minimum 3/8” (10 mm) plywood or OSB decking as recommended by APA-The Engineered Wood Assn.
- Wood decks must be well-seasoned and supported, having a maximum 1/8” (3 mm) spacing using a minimum nominal 1” (25 mm) thick lumber and a maximum 6”(152 mm) width, having the adequate nail-holding capacity and a smooth surface.
- Do NOT fasten shingles directly to insulation or insulated deck unless authorized in writing by GAF. Roof decks and existing surfacing material must be dry prior to the installation of shingles.
- Underlayment is required by many code bodies and is required to maintain the shingles’ UL Class A fire rating. When using FeltBuster High-Traction Synthetic Roofing Felt as underlayment, it MUST be installed over one layer of VersaShield Fire-Resistant Roof Deck Protection in order to maintain a Class A fire rating for GAF asphalt shingles.
- Use only zinc-coated steel or aluminum, 10 – 12 gauge, barbed, deformed, or smooth shank roofing nails with heads 3/8” (10 mm) to 7/16” (12 mm) in diameter.
- Fasteners should be long enough to penetrate at least 3/4” (19 mm) into wood decks or just through the plywood decks. Fasteners must be driven flush with the surface of the shingle.
- Overdriving will damage the shingle. Raised fasteners will interfere with the sealing of the shingles and can back out. Plastic film strips are present either on the back or face of each shingle.
- The film strips are to prevent shingles from sticking together while in the bundle. Do not remove the film strip before or during the installation.
- Use asphalt plastic cement conforming to ASTM D4586 Type I or II. These shingle have a special thermal sealant that bonds the shingles together after installation when exposed to sun and warm temperatures.
- If shingles are damaged by winds before sealing or are not exposed to adequate surface temperatures, or if the self-sealant gets dirty, the shingles may never seal. Failure to seal under these circumstances results from the nature of self-sealing shingles, and is not a manufacturing defect.
- If shingles are to be applied during PROLONGED COLD periods or in areas where airborne dust or sand can be expected before sealing occurs, the shingles MUST be hand sealed.
- See Nailing Instructions/Hand Sealing. Proper underdeck ventilation is essential to reduce moisture build up and prevent mold. Ventilation must be designed to meet or exceed current F.H.A., H.U.D., or local code minimum requirements. For more information on ventilation requirements, see gaf.com.
Mansard Roof Cost
The cost of a mansard roof, including aspects like mansard roof pitch and materials, varies depending on the location that you lived, also labor charge and material cost.
Depending on the materials quality and expert labor its vary per square foot $10 to $14 and with a rough estimate for 1500 square foot roof its vary between $15000 to $50,000.
Mansard Roof Replacement Cost
One of the most expensive roof replacements is mansard roof replacement; the average price of the mansard roof replacement is $14572.24. The replacement range may vary from $9935.62 to $19871.23 lakhs.
Strong wind pressure can damage the mansard roof, and it’s a moisture-pulling material. The curved portion installation is very complicated; that’s why the price is too high.