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Heath Tips

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Roof Repair Seamed

Roof Repair Seamed

Roof repair on a sheet metal roof can leak for three reasons: Corrosion eaten away from the material. Holes from heavy and sharp objects falling on the roof. Violation of the tightness of the seams. Leakage of standing seam seams is fought either with a hemming machine or handicraft with a hammer and a utility bar. It is easier to glue the reclining seam with fiberglass and cover the place to be repaired with polymer mastic. Small holes and rusted holes can be patched like this:

Carefully clean the area to be roof repair with a metal bristle brush. Cut out a patch from the roofing sheet metal, the edges of which will be 7-10 cm larger than the damaged area in all directions. The leaky spot and the back of the patch around the perimeter are first covered with flux, then soldered.

Remove the excess solder after cooling with a file. We paint the repaired area or the entire roof. If there are more than two or three holes on the metal roof with significant damage over the entire area of ​​the sheet or a pair of sheets connected into a card, they are completely changed. A single noticeable hole in the metal is closed up, duplicating part of the sheet. This can be done if the edges of the repair patch can be inserted into the standing folds. Jewelry work, without experience it is better not to undertake it.

Roof Repair metal

There are three common reasons for metal roofing leaks, these are the result of installation errors. The use of poor quality fasteners. Holes due to incorrect cleaning. The first point is related to major alterations. You can correct the situation on the second point yourself. If the sealing washers of poor-quality fasteners have collapsed from temperature fluctuations, you must act according to the following algorithm: We loosen the fasteners of adjacent sheets. We insert wooden wedges into the hole above the repaired area, placing pieces of tar paper or glassine under them.

We turn out the screws, remove the damaged seals. We change the fasteners. We tighten the loosened fasteners of adjacent sheets. Single small holes are patched up according to the standard scheme for roof repair on a metal roof. It is better to completely replace sheets with multiple holes, proceeding in the same way as when replacing fasteners.

Slate roof repair without dismantling Flat and corrugated sheets of asbestos-cement coating are extremely sensitive to mechanical damage. A hole in a fragile material can be made by a stone, a fallen tree, a shovel’s bayonet when cleaning, or an inadvertently stepping foot. The method of roof repair or removing defects in the slate coating depends on the degree of damage. It is better to change a sheet with a significant hole by disassembling the roof to the damaged element vertically or horizontally.

A wide range of products is available for cosmetic roof repair to small cracks and gaps: Oil paint used to repair a roof area with a mesh of fine cracks. The surface is first painted, then a piece or strip of fabric is applied to it, and painted again. Silicone sealant combined with a dense fabric patch. An asbestos paste used to seal serious cracks. A composition is prepared from three parts of asbestos and one part of a binder solution. The solution is mixed with equal parts of water with polyvinyl acetate glue.

A solution is gradually introduced into asbestos. Stir, trying not to get lumps. In order not to swallow asbestos dust, all work is carried out in a respirator. Apply the paste in layers, the total thickness of the restoring layer should be at least 2 mm. A patch of ordinary aluminum foil, planted with universal glue on the seamy side of the slate. For roof repair with foil, the sheet is dismantled if it is not possible to repair it from a cold attic.

If the crack crosses the mounting hole, then glue it completely, and the hole for the fastener is drilled higher. Butyl-based adhesive tape. Bitumen-polymer mastic applied in layers alternately with glass mesh. An epoxy resin used for bonding sheets split along their entire length. From the inside, the slate is first sealed with a fiberglass mesh, then resin is poured into the crack from the outside.

Another article on this blog that might interests you:

Tips on how to repair a metal roof in 2020

Rob Prosser

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