Shallow Pitch Garage Roof

A mansard roof in opposition to a salt box offers the utility of a full half room on the upper floor rather than an attic.

Shallow pitch garage roof.

A low slope roof design typically has a pitch of between 2 12 and 4 12. Finding the right products for your low slope roof. Roof pitch basics a 2 12 roof slope means your roof has 2 inches of vertical drop for every 12 inches of horizontal distance. A common choice for flat roofing material is epdm rubber as it is highly durable waterproof and can be made from recycled materials.

Sometimes seen on square buildings a tented or pyramidal roof feature four slopes rising to a peak. Just like any other roofing system low slope roof designs will have several effects on the overall construction of the building including the interior volume the style and design of the house the drainage system and the material used for covering. The smallest pitch of a roof is 0 5 12. From a practical perspective it s difficult to use high rafter ties on a low pitched roof because the force in each tie increases with the inverse of the pitch.

If your garage is 24 feet wide and has a 4 12 roof the new rafter ties can be placed no more than 16 inches up from the plate without additional engineering. Many roofing shingles do not allow applications onto roofs at this pitch. This has driven a push to go against our cultural inheritance and accept these lower pitched roofs. That means the roof doesn t shed water as easily as steeper roofs which is why choosing the right type of roofing material is so important.

These are often steeply pitched roofs. For example wood and slate shingles might work for roofs steeper than the top recommendation of 12 12 but you should not install them below the 4 12 lower range. Since a roof with a minimal pitch requires less material and less labor it is cheaper than a steep roof. Simply put it s a shallow roof.

Residential low slope roofing can generally be divided up into two broad categories. It features tow pitches one a shallow pitch atop a steeper slope. A low pitched roof is anything that is any roof with a pitch of 3 12 or less. If going the non trussed route for a moderate to low pitched roof the rate per square foot of framing including labor is a range of 11 to 22.

As roof materials a shallow roof pitch became possible. Most roof materials have a recommended pitch range for which they are most appropriate. In some rare cases i will grudgingly grant that a roof with a shallow pitch looks good. Larger flat roofed applications low slope such as residential condominium complexes row homes and town houses and smaller applications such as residential porch and garage transitions from the main home where the slope of the roof changes dramatically.

More commonly roll on membranes such that use heat to bond seams together is used as a roofing material.