A weather sealing band used in building construction, especially on pitched roofs as an under-tile roofing felt, is novel in comprising a polyamide sheet. Its mean vapour diffusion resistance is expressed as an air layer equivalent diffusion thickness of 0.1- 0.5 m. Preferably the actual sheet ...
OPERFECT™ Synthetic Roofing Underlayment is an excellent 100% synthetic roofing felt designed for the replacement of 15 lb/ 30lb asphalt felt. It can be used for steep-slope roofing to provide a lasting layer of protection against wind-driven rain, shingle blow-offs,...
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ROOFING UNDERLAY ESPECIALLY ENVISAGED FOR USE AS UNDER-TILE AND/OR SARKINGThe invention relates to roofing underlay (1), particularly for using as roof cladding underlay and/or roof lining membrane, comprising at least one outer nonwoven layer (2), at least one inner nonwoven layer (3) and...
The process produces dry pressed clay blanks, partic. roofing tiles profiled on one or both sides. During the filling of the space between the mould halves with clay, this space is kept under vacuum. The halves can be kept upright during filling, the clay being delivered from the top via...
However, data are lacking that quantify their performance for specific roofing systems and, in particular, those used for historic building in Italy. Therefore in the present study we have characterized the vapor transmission performance of several of these high permeability membranes and compared them...
It also has assembly and seal ribs (5, 5a, 8, 9, 10) to engage with tiles in the same row and cover those of the row below. The gutter section (2) of the tile comprises a lateral edge with a cut-away section (4) shaped to engage with a tile in the row below, while the ...
ROOFING UNDERLAY ESPECIALLY ENVISAGED FOR USE AS UNDER-TILE AND/OR SARKINGThe invention relates to roofing underlay (1), particularly for using as roof cladding underlay and/or roof lining membrane, comprising at least one outer nonwoven layer (2), at least one inner nonwoven layer (3) and...
A device suitable for this purpose comprises at last two milling cutters (10) which are mounted on a movable frame (8) and can be moved laterally into and out of the respective side edge web (2) of the dried roofing tile blank (1) or the fired roofing tile by means of drive members...
The invention concerns a method of producing undercut depressions (3) in the side edge webs (2) of a roofing tile, the inwardly open depressions (3) being used to accommodate members for holding a solar cell plate. In order to attain an improved, largely accurately dimensioned construction ...