Box Gutter Expansion Joint Detail

The daily and seasonal thermal cycling causes metal gutter linings to expand and contract and if expansion joints are not provided this movement will cause the metal to crack and so the gutter to leak.

Box gutter expansion joint detail. Adjacent sheets are joined by 1 lapped riveted and soldered seams. Presents practical troubleshooting and corrective tips for typical problems of roof panels gutters downspouts fascia copings flashing ridges and hips valleys expansion joints penetrations fasteners and soldering. It replaces the need to box the end of two adjoining gutters and also the need to form a bridge to span the boxed ends. When lining a masonry cornice the edge strip can be secured to.

Therefore any slope on the gutter will make the downstream end deeper or the flashing longer. Expansion joint galv 24g 8 box kynar finish. Includes slip plate two internal end cap and cover plate. Allows proper thermal expansion of box gutter.

Available in a wide variety of materials gauges and colors the gutter is supplied in standard 12 0 lengths and custom lengths up to 40 0 to minimize joints. 8 commercial box gutter expansion joint in kynar 500 steel use an expansion joint every 40 50 lineal feet. Commercial gutters are fabricated in several styles and sized to meet your project s needs. The internal gutter straps are easy to install and provide a clean exterior.

The expansion strip joint has been designed to install as an expansion joint for industrial box gutters. The depth shown in the calculations is at the upstream end. T pren was developed over 25 years ago in europe to overcome expansion problems in metal gutters. The details shown are for the lining of a wood box gutter frame.

The biggest benefit other than ease of installation is that in the case of a blocked downpipe any water can flow across to the adjoining gutter eliminating flooding. Hung gutters are formed from 8 0 to 10 0 long sheets of 20 oz. Expansion allowances gutter specific expansion tables based on girth profile metal predicted annual δt expansion of building materials table with various expansion coefficients must be used for fascia and copings with consideration of both metal and substrate flat seam roof expansion guidance over 30 feet use batten seam design to allow for expansion. Clearance for downspouts through the wood framing is a minimum 1 2 all around.

An invaluable inspection resource for owners of standing seam batten seam or bermuda type roofs. Fabricated from 24 gauge kynar steel. If an expansion joint must be accommodated at the corner itself it should be constructed as shown in detail 10 3b. Expansion joint spacing depends on gutter configuration and material thickness see table 10b at inside or outside corners expansion joints should be provided not more than 24 from the corner.