Level 4 Roof

Older class 4 roof systems can sustain damage from 2 1 2 stones.

Level 4 roof.

Lawrence berkeley national laboratory and 3m. With a regular shingle most of our competitors impact resistant shingles are only class 3 cracks and ruptures will appear from that kind of impact. Class 4 roofing shingles do not necessarily feature a higher wind resistance. Wind ratings are a separate classification.

In a class 4 ul 2218 impact resistance test a 2 inch steel ball is dropped from 20 feet to see if the shingles will fracture. A class 4 roof covering receives the highest premium credit. These impact resistant beautiful shingles have been specially engineered to face some of the worst storms and extreme weather and still look their best. As you contact various contractors or suppliers you should ask about roofing materials that meet ul standard 2218.

Single story house plans sometimes referred to as one story house plans are perfect for homeowners who wish to age in place. With class 4 shingles there are no splits or tears. The main level basement and upper level. However a story refers to a level that resides above ground.

For example if the level is 4 above the roof at a point 12 away from where the level is touching the surface then the pitch is 4 12. On the roof hold the level perfectly level and measure the height from the roof to the level 12 inches away from where the level touches the surface this will be the rise. As a result it no longer has the ability to transfer impact energy and the mat is damaged and or punctures occur to this system. The list of approved laboratories is shown below.

The class 4 shingles weather the storm with the added impact resistance these shingles offer a level of added protection that you will want for the life of your roof. People often talk about class 4 roofing shingles and wind resistance together because high winds may cause debris to go airborne impacting roofs and causing damage.