Hi and thanks to all that reply,
I have a few questions about the Marley Modern tile and would be grateful of your input. Most roofing merchant websites direct you to the Marley website but surprisingly I can't find the answers there! Hope I don't confuse anyone! Here goes:
1) To create a broken bond they advise using a tile that you cut (scored in the middle) - are these necessary or can you cut a full tile?
2) Do you require LH and RH verge tiles? Surely you must as the interlock would be showing or need removing thus reducing width of tile.
3) Are they pre-drilled?
4) From the picture (on Marley website) they seem to need laying right to left. For me this would mean starting at a valley and from a cut tile- requiring some very accurate planning. Or can they be used either way up - answering question 3: not drilled.
finally I have a 'setting out' question:
From some quick measurements of the roof my calculations indicate an 80mm lap (75 min) with a 340 margin but as the roof is very old and probably varies along its length I'm concerned the 80mm might near/exceed the 75mm min. I have also calculated for an extra course but this increases the lap to 140mm with a 280mm margin. Obviously adding cost and weight. From your experiences is it best to ere on the side of caution? Do either of the proposed laps/margins look appropriate?
Again thanks.
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I have a few questions about the Marley Modern tile and would be grateful of your input. Most roofing merchant websites direct you to the Marley website but surprisingly I can't find the answers there! Hope I don't confuse anyone! Here goes:
1) To create a broken bond they advise using a tile that you cut (scored in the middle) - are these necessary or can you cut a full tile?
2) Do you require LH and RH verge tiles? Surely you must as the interlock would be showing or need removing thus reducing width of tile.
3) Are they pre-drilled?
4) From the picture (on Marley website) they seem to need laying right to left. For me this would mean starting at a valley and from a cut tile- requiring some very accurate planning. Or can they be used either way up - answering question 3: not drilled.
finally I have a 'setting out' question:
From some quick measurements of the roof my calculations indicate an 80mm lap (75 min) with a 340 margin but as the roof is very old and probably varies along its length I'm concerned the 80mm might near/exceed the 75mm min. I have also calculated for an extra course but this increases the lap to 140mm with a 280mm margin. Obviously adding cost and weight. From your experiences is it best to ere on the side of caution? Do either of the proposed laps/margins look appropriate?
Again thanks.
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