How To Install A Warm Deck Flat Roof

A 50mm air gap must be left.

How to install a warm deck flat roof.

This option avoids the requirement to ventilate the roof. Set the quinn therm qrfr ply insulation boards onto a wide 30mm bead of vapour resistant sealant applied to the upper surface of all the joists and cross noggins. That would be. Once you ve added the framing it s time to add a layer of 5 8 inch plywood sheathing.

The 8 step process for diy installation. Building a deck over a flat roof is very similar to building a deck over a concrete patio. This approach uses insulation with no air gap either immediately above or below the roof deck. Then you will install sleepers or flat 2x6s laid flat every 16 on top of the roof surface.

A vapour control layer must be used below the insulation. Cure it grp roofing system 75 410 views. How to install a warm deck roof duration. Warm flat roof vapour barrier insulation explained duration.

To use epdm for a warm deck flat roof construction solid closed cell roof insulation such as kingspan or celotex should be placed on top of the roof deck rather than in between the rafters. One important and perhaps not so obvious fact is that a flat roof is not actually flat. Push fit easyfix shoes at gaps of 400mm down the length of timber battens 8 per m2 recommended. Warm deck flat roofs can be constructed on most modern construction material types such as concrete timber and timber based sheets.

The insulation boards should be laid with the plywood face up. Constructing a flat roof using epdm. Warm deck insulation 1. This is where the insulation is typically packed between the rafters.

Installing deck on a flat roof tips choose what height timber batten to use paying close attention to the height of any existing door threshold. Types of flat roof construction warm and cold flat roofs.