3. Tips . This special ridge board has to be positioned carefully so that there will be a gap between it and the ridge tiles when they are fixed. As far as the "line" appearing between tiles, that's just how vinyl tiles look. About an inch in a bucket all told. However, the tiles have been cut quite short leaving a substantial gap to fill. They have a strong adherence to your particular surface … Gaps are needed to allow the system to function; sealing up, and locking together, roofing elements will result in cracking and breakage of the slates or tiles. At the rear of the property some of the cement from the tiles is missing, maybe this is the reason why I have a leak. Now, a lot of standing water, yes. If the subfloor was properly prepped, (sealed properly) and the correct adhesive was used for the tiles, you won't have "casual" water damage. I am in the process of resealing the gap between the base of the shower tray and the tiles immediately above. Ask Question Asked 4 years ago. Clear protective roof sealer to provide lasting protection to all types of roof tiles. The roof seems in excellent condition but the mortar is a bit worn round a few tiles. It works by sealing up holes and cracks which might be forming on your roof, air vents, and air conditioning units. The water continues like this until it enters the gutter. This will help to slow down the re-growth of moss, algae and lichen on roof tiles which tend to thrive in a damp, porous, environment. I have removed the moss and the gap between each tile is approximately 1 inch. During recent storms we had a leak in a bedroom. Going up to the loft we noticed there is a considerable gap (5-6 cm) between the roof and the wall, like this: Is it supposed to be like that? Our house is 100 years old and has a pitched tiled roof. These tiles are stuck fast. Cement or sealant to fill gaps between leaky roof tiles? Or suppose the workers cut holes in the roof for ventilation, but didn't screen them, as is often the case. It's actually dirt stuck to the adhesive edge of the tile. Is there supposed to be a gap between the wall and the roof? But yeah, chicken wire is good, or anything similar. The part of the car port ceiling where it drips - is below clay tiled roof of the house, so water must somehow penetrate beneath the tiles. How To Seal Roof Tiles. (Had some spare, so thought might as well) End sealing pieces which fit between the ends of adjacent ridge tiles to provide a seal. I personally use chicken wire and heat shield but thats probably a bit of overkill. Clay tiles, natural stone tiles and cement tiles are all examples. Do you fill the gap with just sealant and smooth off, or can you fill the main gap initially with grout and then seal with sealant.Any other ideas appreciated. What I plan to do is to fill all the gaps/joints between the tiles I can reach standing on the car port roof with a proper sealant and I'm considering three options available at home: - mortar Viewed 26k times 18. We bought a new house last year. You can't avoid that. Because tiles are laid on a pitched roof (a sloped roof) water runs off the tile and onto the next tile below. A special ridge board above the apex of the trusses which takes the fixings through the ridge tiles. Many different types of roofing material come in tile formats. Construction workers often leave huge gaps at roof lines (peaks & valleys), edges, and wherever soffits touch the roof. Active 1 year, 11 months ago. I live in a two bed bungalow. I have scaffolded that part of the house and traced the leak to a couple of ridge tiles. Suppose the regular wooden roof has a hole or gap somewhere, but I can't find it because tiles are blocking it. I should have mentioned its a gap between the tiles and gutter. 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