Metal Roof Skylight Detail

Refer to the details.

Metal roof skylight detail.

Metal roofing edm flashing pieces interlock with roofing material for a fast weather tight installation. Likewise the noise produced by rain hitting a skylight can be deafening. Flashing a skylight may involve sealant as one line of defense against water infiltration but above all there must be good flashing. Include roof pitch roof geometry slope length and climatic factors such as heavy snowfall or rainfall.

It cannot be flush mounted. Instructional video on how to properly install and trim out a square penetration on a standing seam metal roof. While insulating a metal roof can help lessen the noise interference from weather there is no real insulation solution for a skylight. One common concern with a metal roof is the amount of noise that things like rain and hail will cause inside.

We offer a variety of skylight flashing systems to ensure a weathertight fit for virtually all roof types and slopes. Refer to the rain carrying table in this booklet for the maximum allowable panel length per slope that will provide adequate drainage. Whenever possible begin trim installation at the downwind end of the roof farthest away from the source of prevailing winds to al low flashing laps to face away from wind driven rain. As a roof skylight in a metal building ages the uv rays of the sun dries up the oil in the skylight panels.

The exposed fiberglass threads allows airborne dirt to collect which restricts the light. This causes the skylight to crack and exposes the fiberglass threads. Cad details document name pdf dwg download all cad construction details 37 1 mb 3 4 mb mc01 identification of roof areas 694 kb 167 kb mc01a single layer underlayment 678 kb 302 kb mc01b double layer underlayment 711 kb 322 kb mc02 vent pipe flashing 626 kb 349 kb mc03 valley. Roof pitch the metal roofing panels shown in this manual require a min imum slope of 2 ʺ per foot to ensure proper drainage.

Most major skylight manufacturers provide flashing kits for asphalt shingles as well as specialty flashings for tile and metal roofing typically with a wraparound head flashing and moldable apron flashing that conforms to the roofing profile. Velux skylight flashing kits are designed to shed water without relying on sealants that can break down over time. For longer slopes and lower roof pitches contact fabral for other suitable profiles.