Roof Brittle Test

It is then raised and lowered 45 degrees three times.

Roof brittle test. The roof system and differentiate hail damage from non hail damage. If it cracks creases or breaks during the test or at the 45 fail. In this electrical circuit the membrane acts as an isolator between the positively charged electrical plate on the membrane surface and the conductive deck which is considered the ground. During a brittle test and the shingle is loosened at its lower edge from the shingle below it.

Each slope stands on it s own at this point until depends on carrier you ve hit the 65 rule. It is clear that such a test could cause damage to any shingle regardless of its age condition. If a homeowner has no concerns with heights in general climbing a ladder or walking on a roof there is a simple procedure that can be used to test for brittle shingles. That slope is not repairable due to brittle.

The second step is to quantify the damage on each directional slope by examining test areas. In effect the test they employ is bending a shingle corner against itself 180 degrees and pressing down on the crease as is shown in the diagram below. Figure 4 an illustration of the brittleness test where a shingle corner is pinched. That slope is repairable.

If none of that happens pass. The brittle shingle test. The brittle shingle test is a super scientific testing method whereby an inquisitive person picks up a shingle tries to fold or bend the shingle up to a 90 degree angle and then checks to see if the shingle breaks or bends. U test the shingle by lifting bending it at a 45 angle.

If the shingle breaks then the shingle is brittle and the roof probably needs to be replaced. The entire roof area is then wetted with water which creates an electrical plate at the entire top side of the membrane when charged by the test unit. Functional damage to roofing materials from hail has been defined as the diminution of water shedding capability or reduction of the expected service life of the roofing material 13. This is especially true for roofs covered with asphalt shingles which can become brittle over time in turn leading to more serious roofing issues if they are not replaced.