Valley Jack Roof Definition

Formed by the intersecting ridges.

Valley jack roof definition. A rafter extending from the roof ridge down to the top plate of a wall at the intersection of a gable extension roof that itself abuts or intersects with the main roof. The total rise of hip and valley rafters is the same as that of common rafters. One of the shorter rafters used in a hip or valley roof. Beams that extend from the corner of the plate to the ridge.

Hip valley cripple jack rafter. Valleys are formed at the intersection of the roofs. A rusty valley on a tile roof which needs to be replaced. Similarly jack rafters sometimes get referred to as either hip or valley.

Hip valley cripple jack rafters are placed between the valley and hip rafters. An assembly of interacting roof components includes the roof deck vapor retarder if present insulation and roof covering. In the sketch above the valley rafter is drawn in yellow. So as a result creepers get called cripples with the addition of the terms hip or valley for good measure.

A jack rafter is a shortened com mon rafter that may be framed to a hip rafter a valley rafter or both. A short rafter running parallel to common rafters cut between hip and valley rafters. Noun a short rafter. Thus there are hip jack rafters and valley jack rafters.

It seems as though the terminology of these rafters seems to change not so much as country to country but cripple rafter state to state and team of roofers to team. This is because the old valleys used to be galvanised and they start corroding with time especially if they trap leaves. Valleys are typically found where gable dormer roofs meet the main roof or when a house has angled wings or additions where two roof sections in different planes meet. A metal bracket used to support toe boards on steep slope roofs.

Valley jack rafters run roofs but they are quite rare and require special framing from the valley rafters to both ridges. An intersecting roof with unequal spans requires a supporting valley rafter to run from the inside corner. Figure 2 37 intersecting roof with unequal spans. A direction to the side at about 90 degrees.

This jack does not touch the ridge or the roof plate. Smooth surfaced or mineral surfaced coated prepared felts. Definition of valley rafter or cripple jack rafter. Typically where a valley is located on a roof roof valley replacements are fairly common especially on tiled roofs.

The roof of irregular shaped buildings. Roof but a valley rafter is needed on both hip and gable roofs whenever roof planes intersect. Beams that are placed between hip rafter and valley rafter.