Simple Exterior House Design

March 4, 2016
Stylish Exterior Design 16
home types roof types

Module 6: Design Your Own Home Tutorial

Before continuing on with designing floor plans, we'll need to take a quick look at the various exterior house designs. Types of homes and in particular roof types should be considered before you firm up the walls of your indoor spaces diagrams. We will also discuss basic residential structural design and planning for utilities and services.

This is module 6 of the Design Your Own House tutorial. This module (Exterior House Designs) assumes that you have completed the previous modules. If you are just starting out, go to the Design Your Own Home tutorial introduction or see our tutorial site map.

Roof Types Define House Style

Although you could design absolutely any exterior house design imaginable, it may take some wizardry and a great deal of expense to frame and roof a fanciful design. By sticking to variations of the different roof types, your home construction will be far easier to finance.

Below are several of the most basic house shapes. Keep in mind that these basic building block shapes can be combined in many ways. A simple gable roof can have a dormer or two. A shed roof can protrude from the side of another house shape or out through the roof to provide a shed dormer.

With all of these types of roof, the pitch can vary widely. Roof slope is expressed as a ratio of rise over run or, in other words, the vertical rise of the roof over a given horizontal distance. So a roof that rises four inches over a horizontal distance of 12 inches would be described as a 4:12 roof (simply pronounced “four twelve”). One house could have a gable roof of 3:12 (barely sloped) another could have a gable slope of 14:12 (very steeply sloped).simple bungalow with gable roof over door In North America the slope is generally expressed as the rise in ratio to 12 inches, so the second number is always 12.

Even a flat roof is rarely completely flat. To allow for drainage on a “flat” roof, there is typically a slight slope in one direction. Any roof with a slope of 2:12 or less is usually called a flat roof.

Typically, the least expensive exterior house designs to build are the ones which incorporate one single roof type. For a very small home this may work beautifully but many homes can look too boxy without at least some simple variations in the roof. This variation can be something as simple as having a roofed porch that protrudes from the front of the house for the front door. This brings a bit of relief to the hard lines of a simple box shape.

Some very modern houses may however be striving for these boxy lines. But even in this case it is desirable to have some kind of shelter over the front door. In the case of a modern house with strong lines, the front door could be in an indent of the home without affecting the roof line.

Three Flat RoofsBy combining the basic building block shapes, many more complex home types can be created without making the house too difficult or expensive to build. Examine the basic house shapes used for each home type below. Identify the various roof types and how and where they inter-connect.

Naturally house exteriors can get a lot more complicated than the examples above. For this tutorial, we'll discuss house design for simple types of roofs and combinations of these common types.

Exterior House Design Example

Our house (sketch shown below) combines just two basic roof types, gable roofs and shed roofs. The main roof is a 14:12 gable roof. At the front of the house is a bump out which is covered with a 4:12 shed roof. Just to the right of this large bump out is a very small bump out for a kitchen area window seat. The roof over this bump out is a sideways extension of the 4:12 shed roof over the large bump out beside it. On the upper half story, protruding from the main gable roof, is another gable roof which forms a 14:12 gable dormer. At the back of the house a 4:12 shed roof dormer which protrudes from the roof making room for the stairwell and the bathroom on the upper half story. Next to the front door, a very small bump out (which forms a window seat inside) is covered with another 4:12 shed roof. Another bump out on the opposite side of the house is also covered with a 4:12 shed roof.

This house shape definitely includes several small extra roofs but it was not too complicated to frame all of this. There is nothing in this design that would have experienced framers scratching their heads.

Gable Roof with Gable Dormer gable roof with shed dormer gable roofs and shed roofs modern style house exterior
Source: www.the-house-plans-guide.com
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