How To Build A Crown Roof

Framing a complex roof is one of the trickiest parts of home building.

How to build a crown roof. A roof is much more than just the decorative top of a building. Examine the rafter board to determine if there is any curve or crown in the board. Water easily runs off the slopes of the roof and the modified hip structure make it more durable than a gable roof. Then your first shingle goes on the side you are going to cut.

You should make this first pattern rafter on the straightest board you can find. Experience has shown that the weight of the roof will gradually flatten this crown. If you begin with accurate as built measurements and use a construction calculator to do the math you can cut all of the rafters for most roofs on the ground in just one shot. This video will show you how to install roof shingles.

Then draw a line using the roof slope angle. The next one goes on the low side. The complex design requires more building materials and it s more difficult to construct. With a crown molding cornice a decorative layer of crown molding is added to the fascia and the roof extends to meet the upper corner of the crown.

Weave and cut the valley on the highest side of the roof. A roof provides protection from the elements and precipitation helps drain water away from a structure and provides insulation that helps keep the interior of a building warm or cool depending on the season. Start by overlapping a starter from both sides of the valley at the bottom. To develop the geometry for the rake crown moulding start by drawing face a horizontal crown using the dimensions of the horizontal crown moulding.

Cornice is just a fancy word for the eaves detail at the edge of a building where the roof meets the walls and on most houses it includes the soffit and the fascia. You want to lay the shingles from the bottom to the top of the valley. But it doesn t have to be. Sink the heads to just below the wood surface using a nail sink or to make installation easier use a pneumatic nail gun to attach the molding and set the nails automatically.

This roof valley is a perfect example. If there is any curve in the board lay out the rafter so the crown is up or facing away from you.