What Does A 3 12 Roof Pitch Mean?

What Does A 3 12 Roof Pitch Mean?

A 3/12 roof pitch means that the roof rises 3 inches for every 12 inches of its horizontal run. It means that the roof has a slope or angle of 14.04 degrees, where for every 12 inches (or one foot) of the horizontal distance across the roof, the roof rises vertically by 3 inches. 

This is considered a low-pitched roof, as anything under 3/12 is considered low slope. A 4/12 pitch is quite typical, while anything above 6/12 is considered a steep roof pitch.

In degrees, a 3/12 roof pitch angle is about 14° and a 9/12 roof pitch angle is about 36.37°. Roofs with a pitch lower than 3/12 are not suitable for shingles and require special materials.

What Is The Difference Between 3 12 And 4/12 Roof Pitch?

The main difference between a 3/12 and 4/12 roof pitch is the angle of the slope. A 4/12 roof pitch has an angle of 18.4° while a 3/12 roof pitch has an angle of 14°.

Generally, the greater the number in regards to the ratio the steeper the angle; thus 4/12 is considered a comparatively common choice when it comes to residential buildings since anything under 3/12 is considered fairly low-pitched.

Is 3 12 A Good Roof Pitch?

A 3:12 roof pitch is considered a low slope roof, ideal for residential designs and some areas such as porches. They are best suited to regions with mild climates, as they do not provide sufficient drainage or protection against severe weather conditions like heavy snowfall and strong winds.

While many homeowners prefer the aesthetic of these roofs it is important to note that they will require more maintenance than steeper pitched roofs.

Ultimately, a 3:12 pitch may be suitable if the homeowner desires a certain look, but should be aware that additional upkeep may be necessary in order to keep the roof in good condition.

What Is The Best Roof For A 3 12 Pitch?

The best roofing option for a 3/12 pitch is a combination of rubber, metal and shingles. Rubber is most efficient on flat to a 3/12 pitch while metal and shingles can be an effective option from 4/12 and higher.

Metal roofing systems have become increasingly popular due to their longevity, durability, and fire-resistant properties. They are also more energy efficient than traditional asphalt roofs, lowering your cooling costs in summer months.

Shingles are good for covering small areas at a lower cost than metal but not as long lasting as metal or rubber. A combination of these materials gives the best overall coverage on any type of incline between 0°-45° pitch.

Is A 3/12 Pitch Enough For A Metal Roof?

Yes, a 3/12 pitch can be enough for a metal roof. Most types of metal roofing panels such as standing seam and corrugated panels will work with a 3:12 roof pitch or more, although for lower slopes such as 2:12 or 1:12 it is important to use the right panel profile in order to ensure optimum performance and longevity.